Sensitivity of pregnancy tests. Which pregnancy test to choose

There is hardly a woman who will remain indifferent to a delay in menstruation even for a couple of days. Excitement can be joyful for someone, anxious for someone, but it always raises the question: “What to do? Should I go to the doctors or wait a bit?”

A visit to a specialist after a short delay will most likely not bring clarity to the situation. It is unlikely that the doctor will be able to diagnose such a short gestational age. The way out will be a trip to the pharmacy andbuying a simple, inexpensive and understandable home test to identify an interesting position.

The sensitivity of pregnancy tests in their simplest form is that they are very likely to be able to determine your condition as early as 2-3 days of delay. It is suitable for any woman, regardless of age and physical condition. For its use, additional consultations are not needed, everything will be clear after reading the instructions.

Precautions

The product annotation will describe what is notit is worth doing before the study, when it is better to conduct it, what accessories you need to stock up on. The main conditions are usually:

1. Having a clean container for the test material.
2. It is undesirable to take diuretic drugs before the procedure, the result may be distorted.
3. Required time examination - morning (for certain types of tests).

It is worth considering the fact that when using birth control pills or, conversely, undergoing fertility therapy, the test may alsounreliable.

How does it work?

In the female body during pregnancy, human chorionic gonadotropin is produced. In a normal state, a healthy person does not have it. Exceptions are women with hormonal tumors. The test detects the presence of hCG in the blood. Produced by the placenta, the hormone can be detected as early as one week.

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Advantages and disadvantages

Like any other, suchproducts are endowed with both positive and negative qualities.

Advantages:

• Complete anonymity;
• Elementary procedure;
• the sensitivity of pregnancy tests allows you to determine it at a minimum period, even before the onset of a delay in critical days.

Disadvantages:

• Does not show whether uterine or ectopic pathological pregnancy;
• False results are possible, usually due to poor quality, expired tests;
• The high cost of some models.

Factors affectingcost

A pregnancy test, the price of which still should not be very low, should have a good expiration date so that there is no doubt about the reliability of the indicator obtained. Its cost is primarily affected by such a factor as sensitivity, as well as its type (generation) and the manufacturing company.

What is sensitivity

If a woman wants to determine a possible conception as early as possible, shouldpurchase a test with higher sensitivity. What is the difference between ultrasensitive systems and conventional ones, and how to choose the copy you need?

The amount of hCG that a single test can catch determines such an indicator as the sensitivity of pregnancy tests. Their number increases with each passing day after fertilization. The sooner you want to know about such an important condition for you, the lower the mIU / ml indicator should be indicated on the test box, respectively, the higher the number, the lowerproduct sensitivity.

Existing levels of sensitivity

Tests come with an indicator: 30 mMeml, 25 mMeml, 20 mMeml, 15 mMeml, 10 mMeml.

Pregnancy test (sensitivity 10) will be able to determine the lowest number of human chorionic gonadotropin in the body of a future mother.

Types of products and their labeling

Currently, 3 types of tests are being produced to detect early pregnancy. They differ in quality, form of manufacture, price, and, of course, sensitivity.

1. Paper strip testsimpregnated with a substance that reacts to the presence of hCG. The principle of their action is absolutely simple: dip the strip for ten seconds in a jar of urine, wait about 5 minutes and see if two red lines appear. If so, then most likely you will soon become a mother. The sensitivity of pregnancy tests of this type is most often 20 or 25 mM. 4.jpg" width="590" />

As a rule, they capture the level of hormones that are achieved in the female body after a few daysafter a delay in menstruation, so it makes no sense to use them before this period. This is the first generation of tests. It happens that they show distorted results. It is especially unpleasant if the absence of pregnancy was determined, but in fact it was. The strip could not completely absorb the liquid and distort the picture.

Despite this, they are very much in demand. The price of such products ranges from 10 to 100 rubles.

2. II generation - cassette pregnancy test. Sensitivity 15, 20 - the most common on itmarking. Such products look like a case, which contains a paper test in the form of a strip. There are 2 windows on the body. Urine enters the first with the help of the pipette included in the package, it comes into contact with the reagent present there, and the result will be visible in the second in three or four minutes. This type of test is more expensive (60-150 rubles), but its quality is not very different from ordinary paper. A more sensitive product will be able to detect your interesting state a few days before the start of critical days.

If you are looking forward to pregnancy and want to leave two dashes are displayed on memory, then with such an instance you will be able to do it.Besides, it looks beautiful.

3.Inkjet pregnancy test.Sensitivity of 10 or 20 is its standard indicator.This is the most accurate version of the test , the last, third generation, the price for it is quite high, ranging from 150-300 rubles.

It contains a special layer of blue reagents,which, detecting hCG in female urine, attach to them and show their presence in a minute. To carry out diagnostics with it, containers and pipettes are not needed, it is simply substituted under urine, the reliability of the result does not depend on what time the procedure is performed.

This high sensitivity pregnancy test gives a chance to determine an interesting position already at 6 days after conception.

An inkjet option is an electronic test. The price for it is the highest - 200-1000 rubles, and the only difference is that instead of the appearance of stripes,which you need to look closely, it gives the word "pregnant", that is, "pregnancy".

Reasons for False Indicators

Failures in results can occur for various reasons. The main ones are:

• The procedure was not followed;
• It was stored incorrectly;
• It was carried out very early;
• The woman has disturbances in the functioning of the ovaries;
• after a month or two after childbirth, there may still be hCG in the blood;
• the presencetumors;
• A large volume of fluid drunk the day before.

If the analysis has drawn the desired lines, it is advisable to contact a medical specialist as soon as possible, who will either confirm the pregnancy or send it for examination to find out the reason for a false positive result.

Choosing the best option

When choosing a test, the decisive factor is at what stage you want to find your interesting position. If even before the delay of critical days, then more sensitive products should be purchased withmarking 10, 15 mm. If you are already late, then you can buy a more economical paper pregnancy test. Sensitivity of 20, 25 and below is highly likely to correctly show your condition.

Multiple studies of the Russian consumer market for this product indicate that the following tests are in great demand:

1. Paper strips with a sensitivity of 20-25: BB (BB), Frautest Express, Evitest No. 1 (will detect pregnancy from 3 days late).
2. Cassette, sensitivity 20, 15: Evitest Proof, Frautest Expert (detectan interesting position on the 8-14th day after conception).
3. Jet, sensitivity 10, 20: ClearBlue (electronic), FRAUTEST EXCLUSIVE. They are able to determine the onset of pregnancy from the 6th day after the conception occurred.

These models are referred to as rarely giving false results. Russian-made products “Be sure” have proven themselves well. It is very popular, largely due to the fact that it is a test forpregnancy, the price of which is affordable for almost everyone and is 10-15 rubles, and the results are usually reliable.

Summarizing, I would like to note: if a highly sensitive test did not show an interesting situation, and you conducted it after 6 -7 days after a possible conception, do not despair. This may simply mean that it is still very early and the hCG level has not reached the level that your product sample can capture. Be patient and repeat the study after two or three days. Since the hCG indicator is noticeablychanges in just 2 days. The same rule applies to a less sensitive (with the indicated 25 or 30 mMl indicator) pregnancy test. The period that has passed after conception may not be enough for this particular product, and another manufacturer will not let you down and show the desired 2 strips.