Often a situation may arise when it is urgently necessary to determine whether conception has taken place or not, but it is not possible to resort to the help of special tests or examinations. It is in such situations that popular advice can come in handy. An iodine pregnancy test is one of the most common among all other testing methods. Is the test reliable and how to conduct it?
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It is impossible to say that a test with iodine gives a 100% result, but judging by the reviews of many women who conducted home tests using this substance, for the majority it showed a true result.
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The test is carried out using simple available tools:
- a small strip of paper;
- alcohol tincture of iodine;
- urine;
- pipette;
- container – preferably sterilized.
A few words about how this method works. After conception and implantation of the embryo into the wall of the uterus, its cells begin to secrete the hormone hCG. The active substances contained in iodine, like litmus paper, react to changes in the composition of urine.
There are two ways to check for pregnancy, each of which we will now look at.
Method No. 1
We take a sterilized container and fill it with morning urine. After this, use a pipette to drop a few drops of iodine into the urine, trying not to raise the pipette too high above the liquid, so that the drop does not splash when it comes into contact with the urine, but smoothly enters it. Moreover, the accuracy of the testing procedure depends on compliance with this recommendation.
If a drop of iodine remains on the surface of the urine, then the likelihood that pregnancy has taken place is very high. Pregnancy is also possible when a drop of iodine first sank to the bottom, and then rose again to the surface and did not spread. If the iodine drop dissolved, then conception did not take place.
Method number 2 with paper
For the second test, we need a thin strip of paper - at least 5 mm in width. To determine conception using this method, you need to collect urine and carefully dip the edge of a paper strip into it so that it only gets wet and not soaked. After this, very carefully drop a drop of iodine onto a strip soaked in urine, doing this as close as possible to the surface of the paper.
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Features of iodine testing
Determining the fact of possible conception using iodine and paper is not a 100% reliable method, and in order for it to be as truthful as possible, you must follow several recommendations.
If testing is carried out without a paper strip, then, as mentioned earlier, it is extremely important to drip iodine carefully. What is this for? The fact is that if a drop falls from a great height, it will simply mix with urine and will not react with it, as required by the test.
It is also important to prepare the biomaterial itself. Urine should be in the morning, since at this time of day it is most concentrated, which means that the likelihood that iodine will react with urine that has changed in composition is very high. In addition, before collecting urine, you must wash yourself, but without any detergents, and thoroughly wipe your perineum so that no water remains in them.
Pay attention to the cleanliness of the pipette and container for collecting biomaterial. If the container is poorly washed, and the pipette has already been used for nasal instillation or other needs, then foreign substances may adversely affect the reliability of the testing.
A test to confirm pregnancy is performed on early stages– up to 10 weeks. You can even use it without waiting for a missed period.
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Advantages and disadvantages
Despite the fact that the reliability of the test using iodine and urine causes some mistrust, one cannot fail to notice its advantages:
- Possibility of testing at home.
- The test requires available tools, which are found in almost every home.
- The method does not require large capital investments.
- Seen more often on relevant forums positive reviews about the veracity of the procedure rather than negative ones.
- There is no need to wait for a missed period.
To be fair, we also note the disadvantages of this method:
- the iodine test is still a folk method, so it is not always able to show a 100 percent result;
- lack of sterility;
- it is necessary to follow the testing rules so that the reliability is maximum - for some this causes a lot of trouble and inconvenience;
- the need to purchase a pharmacy express test or visit a gynecologist in order to confirm or refute the accuracy of the result.
Therefore, each woman decides for herself whether to use this technique or not. Some people prefer more traditional methods, while others trust popular advice. To learn how to conduct a test with a regular test strip, watch the video:
Bottom line
To summarize, let's talk about the most important things:
- A pregnancy test using iodine, according to reviews, is one of the few reliable folk methods that can show whether conception has occurred or not.
- The reliability of testing with urine and iodine is not 100 percent, so it will be extremely difficult to say for sure that the procedure will help determine whether conception has occurred or not.
- Simplicity and a minimal set of “inventory” are one of the most important advantages of this technique.
- Considering the specifics of testing, it is necessary to adhere to the rules of the procedure in order to obtain the most accurate results.
- Also, do not forget that pathological changes in the functioning of the genitourinary system can also affect the result.
- There are others traditional methods definitions of pregnancy. Read about them in our next one.
Do you trust people's advice? Perhaps you know another method of determining pregnancy that can be used at home without resorting to pharmacy rapid tests? Share with us and our readers your opinion and useful tips by leaving comments at the end of the post.
AnonymousTime: 23:55 Date of: 17/06/03
Tell me, how reliable are the tests (the kind in the form of a litmus test - you put it in a jar of urine, one strip means you’re pregnant, two – you’re not)??
But my delay was only 2 days, but there is reason to worry about an unplanned pregnancy. I do a test - “not pregnant”. And my period doesn’t start (I’ll say, there are delays, but not often). What to do?!?! How to know for sure? Maybe for an ultrasound right away. So that it won't be too late later!
Time: 01:57 Date of: 18/06/03
It’s been two weeks and a couple of days since my friend’s home was late, I was already preparing to become a dad, but they went today)))
Here's what I found out in two weeks. Yes, tests lie.
Every other day they don't show.
In reality, only ultrasound shows (for sure, that is).
Two days is bullshit. The cycle gets confused due to nerves and worries. And also from physical stress.
If you had sex without rubber bands, then the chances are great (I never do that, which is what I advise you).
If you are sure that you couldn’t get pregnant, then wait...
Time: 02:14 Date of: 18/06/03
The test will really show in 2 weeks. It’s better to go and donate blood - at any residential complex.
Time: 04:18 Date of: 18/06/03
Tests do not lie, but simply the amount of hormone may not be enough at this stage. You can try tests from different companies. False-positive readings are quite rare, but the test may not show up for a long time. But if there is at least a faint line, IMHO there is a pregnancy. On an ultrasound, the fertilized egg may not yet be visible, so it is best to donate blood to check the hCG level.
Time: 07:35 Date of: 18/06/03
An ultrasound won't help, it's better to donate blood. If in a paid clinic, the result is ready in an hour
Time: 08:45 Date of: 18/06/03
Or maybe you got it mixed up? Two stripes mean pregnancy, but one does not.
It’s very rare for an ultrasound scan to show up for such a short period of time. It depends on the device, and on the ultrasound technician himself.
It is best to donate blood for hCG. It is guaranteed that at this stage pregnancy will already be determined.
Time: 08:49 Date of: 18/06/03
And my test showed that I was pregnant, while the ultrasound told me that there was nothing. But the test is not in the form of a cardboard, but more expensive, in a plastic case. And when I did another ultrasound a week later, the pregnancy was confirmed!
Time: 09:50 Date of: 18/06/03
In general, the tests are quite reliable, but it’s better not to be greedy and buy more expensive ones. And if there is any doubt, you should donate blood for hCG
Time: 10:36 Date of: 18/06/03
Quite reliable. If in doubt, donate blood, there will be no questions.
Time: 10:53 Date of: 18/06/03
It may be that during pregnancy it will show its absence. But with two lines, it’s always definitely pregnancy.
Depends on the sensitivity of the test.
If the test is good and your hormonal levels were normal, then most likely the test would show two days after the delay.
I strongly advise you, rather than worry, go to the doctor - a medical test is much more reliable.
IN.
Time: 12:31 Date of: 18/06/03
My test showed that I was on the 4th day of my delay. An ultrasound will definitely not show anything. The most reliable blood test for hCG.
Time: 16:15 Date of: 18/06/03
You need to donate blood for hCG - this is already 100% reliable. An ultrasound will not show anything at this stage, at least from the 10th day of the delay...
My test did not show, although there was 151 hCG in my blood, and after 2 days it only showed 2 bands, when there was 530 in my blood... Although it had a sensitivity of 25 units, i.e. theoretically should have rinsed.
Valerie and little miracle girl 30 weeks
Time: 23:04 Date of: 18/06/03
How many stripes do you have, one or two?
If there is only one line, then there is nothing to worry about, but if there are two, donate blood for hCG
Mistress of the question
Time: 00:05 Date of: 19/06/03
I took the test twice (the second after 2 days). There was only one stripe.
And one more thing about my trouble. THIS happened somewhere on the tenth day of the menstrual cycle. So maybe the egg didn’t have time to mature by that time?
And what day of delay will the ultrasound most likely show?
Time: 08:47 Date of: 19/06/03
Don’t wait for the ultrasound to show it, they tell you - donate blood for hCG! This is a more reliable way to determine pregnancy at such a short time!
And by day 10, the egg might not have matured, especially if you have a cycle of more than 25 days, but sperm live inside for up to 5 days, so conception is theoretically possible.
Time: 10:18 Date of: 19/06/03
It showed that I was pregnant - but it turned out that I was not... so sometimes they are not very reliable... although I then immediately did other tests - but they were all negative!
Time: 17:48 Date of: 19/06/03
Pregnancy - 2 stripes, not 1.
Mistress of the question
Time: 23:57 Date of: 19/06/03
All two times there was one line, and at the beginning I simply made a reservation: one line means I’m not pregnant, you noticed that’s right.
Time: 10:09 Date of: 23/06/03
Regarding the tenth day of the cycle. It all depends on the duration of the menstrual cycle itself. And are you correctly defining its beginning? Let's count together, I was in a similar situation myself)
Time: 11:30 Date of: 23/06/03
Perhaps your ovulation is simply delayed.
But for many of my friends, the test showed pregnancy only at 6-7 weeks of pregnancy... so if the delay is more than a week... then my advice is to go to the doctor
Time: 15:22 Date of: 23/06/03
Yes Yes. The question “is the egg ripe or not ripe on the tenth day?” depends on the length of the cycle.
By the way, how regular is it? sex life, because of “interruptions” the cycle can go astray? Although I’m not sure, it’s more likely a psychological factor.
Time: 22:39 Date of: 23/06/03
No. It seems to me that the point is not how regular the sex life is. Rather, it all depends on changing partners. For example, when I change my partner, there is DEFINITELY a delay. And how are you?
Time: 09:41 Date of: 24/06/03
Pregnancy tests lie. During the first two weeks of my pregnancy, the test was negative. And the inner feeling was like before menstruation. And I went to the gynecologist - it was discovered that I was pregnant. So my advice to you is not to trust the tests. Donate blood - 100% guarantee.
Time: 11:55 Date of: 24/06/03
By the way, a blood test is more accurate...and it can be done in the early stages, when tests have not yet shown anything
Time: 18:18 Date of: 24/06/03
My test did not show an existing pregnancy after 3 weeks of delay. Here! It’s just that the hormonal background is such that pregnancy cannot be detected... Since then I have not used tests.
Time: 00:19 Date of: 26/06/03
Reliable. You just need to wait for a certain level of hormones; for some this happens right away, then the test shows pregnancy at an early stage, but for others later - then on the 2nd day of the delay it may not show.
Time: 08:18 Date of: 29/06/03
An ultrasound will not show anything right away, only after 4-5 weeks of pregnancy.
Home pregnancy testing has been possible since 1971. This was one of the most useful and convenient inventions, according to women (and many men too). Of course, the first testing systems were not extremely easy to use or highly accurate. But over all these years, the tests have gone through several stages of improvement, and today with their help we can get a result within a few seconds, anywhere. But how much can you trust him?
Can a pregnancy test be wrong and how often does this happen? Let's discuss.
Pregnancy tests: percentage of reliability
The invention of test strips was truly a breakthrough in medicine. But over time, the wave of enthusiasm died down slightly. No, the test systems more than justified themselves, but doubts began to arise about the reliability declared by their manufacturers. Increasingly, women began to complain about receiving false results, and gradually the percentage of reliability of pregnancy tests from the 99% stated in the instructions began to modestly decrease: 97%, 96%, 95%.
Attempts to assess the reliability of the results obtained during home testing have been made repeatedly by various research organizations. But in reality, it turned out to be difficult to implement this idea due to the influence of a large number of objective and subjective factors on the final test result.
In general, the researchers agreed that the accuracy of modern tests is quite high, but it is slightly lower than stated in the instructions. According to some data, approximately 16% of them are able to determine pregnancy on the first day of the delay, but already on the 3rd day of the delay, the vast majority of pharmacy tests will cope with the task.
Meanwhile, firstly, even such a reliability of the result is very high, and secondly, most often it is not so much the test itself that is to blame for obtaining false data, but other circumstances.
Can a pregnancy test lie?
No matter what diagnostic method we are talking about, the possibility of error always exists! And even an ultrasound can be wrong. Pregnancy tests quite often show false negative or false positive results, with the former being much more common.
There are many reasons why a test can “lie”:
- Low quality products. This includes violations not only in the production of such products, but also in their storage. If the test is expired, was stored in unsuitable conditions, or was damaged during use (foreign substances got into the reagent or into the urine), the likelihood of an unreliable result increases.
- Violation of the rules of use. Even the cheapest strips contain step-by-step instructions for proper testing, and these may have some differences between products from different manufacturers. Therefore, before starting the manipulation, you need to carefully study the instructions: which end to lower the strip into the urine, to what level, how long to hold it, when you can read the results.
- Testing too early. It should be recognized that this is one of the most common reasons why already pregnant girls get a negative result. The explanation is very simple: the test is able to determine pregnancy only when the amount of a special hormone hCG (produced by a fertilized egg) in a woman’s body rises to a certain level. On average, this happens 15 days after conception, and therefore very often a test carried out on the first day of delay shows reliable results. positive result. Meanwhile, it is never known for sure on what day of the cycle conception took place (ovulation may shift, sperm have different activity), how quickly this particular fertilized egg develops and when exactly it is implanted into the uterus and begins to produce hCG.
- "Bad" urine. The hCG hormone is excreted along with urine, and therefore the more concentrated it is, the more reliable the result will be. For this reason, it is recommended to test in the morning with the first portion of urine: the reliability of the test in the evening is noticeably reduced, especially in the earliest stages. Diuretic foods and drinks taken the day before can also dilute the urine. In addition, hCG in the urine may appear due to taking medications containing it, and as a result - a false positive test.
- Hormonal tumors. There are such formations that can produce the hormone hCG in a woman’s body, which has nothing to do with pregnancy. If the result is positive, but there is absolutely no reason to suspect pregnancy, then it is better to be examined by a gynecologist to rule out the presence of such neoplasms.
- Diseases of the genitourinary tract and cardiovascular system. Since hCG is excreted from the body by the kidneys, disturbances in the functioning of these organs can cause unreliable data to be obtained. However, this does not mean at all that if a woman has polycystic ovary syndrome, cystitis or pyelonephritis, then the test will not show pregnancy. It's about only about existing probability.
- Pathological pregnancy: frozen, ectopic, delayed development of the ovum, threatened miscarriage. In all these cases, the production of hCG by the chorion may be insufficient, so the test will not respond to an increase in the concentration of this hormone in the urine.
Please note that no other diseases or conditions, whether diabetes, viral diseases, alcohol intake and medicines, menopause, etc., do not affect the results. The reliability of pregnancy tests when breastfeeding and taking OCs is just as high if testing is done correctly. But any of these factors, including diet, stress or change climate zone, can affect the period of ovulation and the duration of the cycle, that is, lead to its failure, and in this case the test may show pregnancy occurring later.
Reliability of pregnancy tests with soda and iodine
Finally, I would like to say a few words about the tests themselves. They are different: both in cost and in the method of implementation. The most modern (and by default reliable) are the latest generation test systems: inkjet and digital. Such devices cost an order of magnitude more than regular strips, but they are more convenient to use and less likely to make mistakes.
However, the simplest test strips available to any woman can cope with the task assigned to them no worse than their expensive counterparts. After all, the principle of operation of absolutely all pharmacy tests designed to determine pregnancy at home is the same. Each test system (from primitive to the most advanced) contains a reactive substance that can react with hCG, displaying the result on the screen or strip. This is how we find out about pregnancy. But this reaction occurs only if the concentration of hCG in the test urine is sufficiently high. The smaller the amount of hormone the test is able to “react” to, the more sensitive it is, and the sooner it can show a positive result. Thus, the most common tests show a second band already at a hCG concentration in urine of 25 Mme/ml (this threshold is indicated on the test packaging). The sensitivity of the test system, which is 10 Mme/ml, suggests that the reliability of such a pregnancy test will be high even before a missed period.
Despite this, gynecologists recommend not to force things and, in order to avoid obtaining false data, carry out testing no earlier than the 3rd day after a missed period: the later, the more reliable it will be (the most accurate data can be obtained a week after the delay). Moreover, regardless of the result obtained, doctors advise repeating the test at least 1 more time after a few days: the level of hCG in the urine of a pregnant woman doubles every second day.
It should be recognized that in some cases the test does not show the pregnancy has occurred for quite a long time. This may indicate the development of a fetus with pathologies or ectopic. But also many of these pregnancies are quite successful, it’s just that hCG in women does not grow as rapidly as usual.
In order not to worry unnecessarily, in cases where the situation remains in doubt, it is better to immediately contact a gynecologist. Keep in mind that ultrasound very rarely “sees” the fertilized egg in the uterus in the first days of the delay, so it is better not to rely on ultrasound in this sense. But if you want to be sure whether you are pregnant or not, when the test result gives you doubts, then the best decision would be to take a blood test for hCG: this test is considered the most accurate!
It is clear that folk methods in this case are generally unreliable. There is no talk about their accuracy, doctors are sure. Meanwhile, practice shows that in almost half of the cases the results of popular tests coincide with the real ones. Most often, girls discuss on forums the reliability of pregnancy tests with soda and iodine. And for half of those who tried these methods, the result was correct. So if knowing the real picture is not so important for you, then you can “tell your fortune” - with soda, iodine, or in another way. Otherwise, such methods cannot be trusted.
Be sure to visit a doctor if the test shows a positive result: you need to make sure that the embryo is developing in the right place and there are no abnormalities. It is also necessary to visit a gynecologist in the case when the test is negative, but you still don’t have your period.
Especially for - Ekaterina Vlasenko
Many girls who live a full sex life carefully monitor their menstrual cycle. And within a few days they rush headlong to the pharmacy to buy a pregnancy test, which, in their opinion, is the most reliable way to determine it. But sometimes it happens that such “reliable” pregnancy tests can be wrong. This is not a very pleasant moment, especially if the girl is not yet ready to have a child, and trusting this method, she finds out about the baby already at a decent age.
To avoid such moments, it is worth knowing whether pregnancy tests are wrong and how accurate the result can be. After all, the further development of the current situation will depend on how accurate the pregnancy test is.
Do pregnancy tests lie?
Often girls and women cannot understand how it happens that the test shows a false pregnancy or does not see it at all. After all, it is specially created in order to recognize a fertilized egg in the female body. But due to hormonal changes that begin only after the second week after fertilization, the accuracy of a pregnancy test may be low.
The test is not able to detect pregnancy when a woman is taking diuretics that affect the secretion of the hormone in the urine. Also, pregnancy will go undetected when a woman has kidney disease or cardiovascular disease. may also be "not available" for a regular test.
Whether to believe pregnancy tests is a purely individual decision. But every woman should know how likely a pregnancy test is to make an error.
Reasons for “false readings” in pregnancy tests
No doctor can say for sure how reliable pregnancy tests are. The result can only be predicted by the woman herself, who knows her body and all her diseases well. There are several reasons why a pregnancy test may be wrong:
To accurately determine pregnancy, you should not rely only on such a test. If you suspect future motherhood, it is better to go to the clinic for an ultrasound and a blood test, which will make it possible to determine pregnancy within a week after fertilization.
With the invention of tests for early, and most importantly simple, determination of pregnancy, women can become happy before the expected 6-8 weeks interesting situation, when the gynecologist confirms the fact of the development of a new life.
Two cherished stripes bring a lot of joyful emotions to future parents. In this article we will talk about all the intricacies of home express pregnancy diagnostics, teach you how to do the test correctly and understand the result.
How does the test work?
All tests are based on a single mechanism - the determination of the hormone human chorionic gonadotropin or hCG in the urine, the production of which begins from the moment the villi of the growing placenta penetrate the uterus, i.e. attachment of the embryo. Its amount is growing every day, but at the very beginning the growth of this hormone can only be determined by a special study of venous blood (the result will be positive 5 days earlier than the most sensitive tests begin to show signs).
The sensitivity level of most rapid tests starts at 25 mUI hCG. Some manufacturers write on the packaging that the test is sensitive even at 10 mUI of hCG, but this is difficult to prove. As pharmacists say, this is more of a publicity stunt than the truth. Another cunning advertising trick is the inscription that the test has the highest probability of determining pregnancy before a delay, accuracy is 99.5-99%, etc.
If you have a regular menstrual cycle
The release of a mature egg, ready for fertilization, occurs in the middle of the cycle. With a 30-day cycle this is the 15th day, with a 28-day cycle it is the 14th day. Over the next two days, fertilization can occur. After the fusion of the egg with the sperm, it “swims” for another 4-5 days to the placentation site in the uterus. Those. Around day 22 of the cycle, a blood test can already show a rising hCG. The most sensitive and high-quality tests can show 2 strips 4 days before the expected menstruation, when the level of hCG in the urine becomes more than 25 mUI.
Thus, you can do a highly sensitive test on the 26th day of the cycle with a 30-day cycle, and on the 24th day with a 28-day cycle!
If you have an irregular menstrual cycle
You can determine when ovulation occurred using:
- increasing the level of basal temperature;
- appearance .
Having set the date of approximate ovulation for yourself, add 12 days to this number - you can already detect an increase in hCG in the blood (see). 15 days after approximate ovulation, you can do a test with high sensitivity.
What time of day should you take a pregnancy test?
As a rule, the instructions for test strips do not recommend what time of day to test. This means that during pregnancy the test will show 2 lines at any time.
Gynecologists advise doing the test in the morning using night urine. In this case, the result will be reliable, especially in the early stages of pregnancy. If you test during the day, there is a possibility of error, since the urine is not so concentrated due to the liquid consumed during the day. The same thing is possible if you do the test in the evening - the hCG content in the urine will be lower. If there is a need to test during the day, it is better to do this after abstaining from urination for four hours, while limiting fluid intake to obtain more concentrated urine.
General rules for the correct use of pregnancy tests
- The pregnancy test must be stored under the conditions specified by the manufacturer on the packaging;
- The packaging with the dough must not be damaged;
- Expired tests cannot be used;
- You cannot use the same test 2 times;
- It is best to test on overnight urine;
- The package with the test is opened immediately before use;
- Before urinating, you should wash yourself and dry yourself with a towel;
- Urination should be done in a clean container;
- It is very important to strictly follow the instructions: lower the test into urine exactly to the indicated level, keep it in urine no less and no more than the recommended time, evaluate the result only at the indicated time.
Pregnancy test - instructions for use
Pharmacies sell many test options. They all have different prices, but equally promise accurate results. Let's figure out how to use them correctly and which ones will be the most reliable.
- Frautest and Evitest pregnancy tests are considered the most popular and reliable. Tests from these German manufacturers occupy an average price niche (100-140 rubles), but do not suffer from false results.
- All other tests can be considered equally reliable if used correctly, especially with regard to the time to delay. The most reliable result can be obtained by testing in the first 1-3 days of missed menstruation.
- The cheaper the test, the cheaper the reagent it uses.
Strip test
Popular and inexpensive tests in the form of a paper strip coated with a layer of antibodies in hCG. The hormone contained in the urine reacts with the impregnation of the strip, and a second strip appears on the test.
Instructions for using the test. For testing, you will need a clean container in which several milliliters of urine are collected. The test tip is lowered into the urine to the designated mark and held for 10 seconds. The result is assessed within 1-10 minutes (the less hCG in the urine, the later the 2nd strip will appear).
Reliability – from the first day of delay.
Pro: cheap.
Disadvantages: not convenient to use, does not show results before a delay, can make mistakes.
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Tablet test
Available in a special box with two windows. The operating principle is the same as the strip test. The kit includes a cup for collecting urine and a pipette.
Instructions. You need to add 4 drops of urine into one window. The result is assessed in the second window after 1-10 minutes (1 or 2 strips).
Reliability – from the first day of delay. Until the delay does not indicate pregnancy.
Pros: inexpensive, easy to read results.
Disadvantage: require a lot of action.
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Jet test
The name itself suggests that it can be placed under a stream of urine.
Instructions. The test is placed under a stream of urine or in a container with urine with a tip with a filter for 10 seconds. The result is assessed after 1-10 minutes in a special window (1 or 2 strips).
Reliability - determines hCG 5 days before the delay. One of the best tests.
Pros: accurate, most convenient to use.
Cons: expensive.
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Electronic pregnancy test
Another name is digital. The most modern rapid test.
Instructions. The test is dipped into the urine with the filter tip until it is soaked. The result is assessed after 3 minutes: in case of pregnancy, a “+” icon or the inscription “pregnansy” appears in the window.
Credibility. It can show pregnancy 4 days before the delay. Considered 99% accurate when tested 2 days before your expected period.
Pros: The result cannot be assessed incorrectly, the most highly sensitive.
Cons: the result is visible only for about a day, then the inscription disappears; it will not be possible to leave proof of pregnancy as a keepsake. The most expensive.
Can a test result be negative during pregnancy?
HCG levels rise differently for everyone. Within 2 weeks after the delay, the test may still be negative if the woman has endocrine dysfunction or is at risk of miscarriage. The test will also be false negative if it is used too early; some women begin taking tests from the day of possible conception. Well, there is nothing harmful in this, but is it worth tormenting yourself while waiting for a miracle?
Another reason is non-compliance with the rules for using the test.
False positive test result
This happens in the following cases:
- in the first 2 months after delivery;
- ovarian dysfunction;
- development of a hormone-producing tumor (chorionic carcinoma);
- when using expired test.
Is the test result taken during menstruation reliable?
Some women may continue to have periods during pregnancy. However, menstrual blood does not in any way affect the sensitivity of the test, so the result will be reliable. Even if a woman did the test in urine stained with bloody discharge, if there is a proper level of hCG in it, the test will show 2 bright stripes.
Test results for ectopic pregnancy
With an ectopic pregnancy, as is known, the attachment of the fertilized egg occurs outside the uterus, most often in the fallopian tube. But hCG begins to be produced in this case too. A peculiarity is the absence of an increase in hCG or its slight increase.
Thus, a regular pregnancy test will show the same 2 lines. It is likely that the second line will be barely visible or more blurred than during a normal pregnancy, and positive test It will only happen after a delay in menstruation.
A special INEXSCREEN test allows you to suspect an ectopic pregnancy a couple of weeks after the delay. Diagnosis is based on identifying the level of the modified isoform in the composition of hCG, which in ectopic pregnancy is significantly lower than the required 10% characteristic of normal pregnancy.
Test results for frozen pregnancy
If a clear positive result obtained several times within a week becomes doubtful, and then the test shows only one line, there is a high probability that the pregnancy is frozen. You should immediately visit a doctor.
How to decipher a questionable result?
A questionable result occurs when there is doubt whether there is a second stripe. It may be faintly visible, blurry, or slightly visible, as if from within. Causes:
- low level of hCG, borderline minimal, at which the test becomes sensitive;
- unusable test, non-compliance with testing rules;
- A woman’s great desire to see 2 stripes. Very often we wishful thinking.
What to do if the test shows a questionable result? Repeat it after a few days, or better yet, 1-2 days after the delay.
Anti-rating of pregnancy tests
Unfortunately, it also happens that if the rules for express diagnostics are strictly followed, a pregnancy test shows a result that is not true. The following tests cause false positive and negative results:
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| Faith | rest assured | Bee-Sure | Bebicek | Mon Ami |
