How A Pregnancy Test Works

Table of contents:

How A Pregnancy Test Works
How A Pregnancy Test Works

Video: How A Pregnancy Test Works

Video: How A Pregnancy Test Works
Video: How do pregnancy tests work? - Tien Nguyen 2024, December
Anonim

Self-diagnosis in early pregnancy using tests allows you to quickly find out the result. All of their types act on the same principle - they determine the level of hCG in the urine. But you always need to remember that only a doctor can determine the condition more accurately. There are several types of tests.

How a pregnancy test works
How a pregnancy test works

It is necessary

  • - pregnancy test;
  • - capacity.

Instructions

Step 1

Test strips

Take a clean, dry dish, collect urine in it, then lower the strip for 20 seconds to the indicated mark. Place the test on a dry surface and read the result after 3-5 minutes.

Step 2

Tablet tests

They are more reliable than test strips because they are protected by a plastic box. To use the test, also collect the urine in a container. Using the special pipette included in the kit, apply a few drops into the window on the strip. Look at the result in 5 minutes.

Step 3

Inkjet modern tests

To carry out them, you do not need to collect urine, but you need to put a strip under the stream for a couple of seconds, then assess the readiness. A pregnancy test is recommended to be done in the morning, since at this time the concentration of hCG in the urine is highest. You can not use the test in a stale portion of urine, conduct the study immediately after urination. Try to follow the instructions exactly, otherwise the result may be false.

Step 4

Electronic test

Its principle of operation is the same, only instead of changing the color, the inscription "pregnant" or "not pregnant" appears.

Step 5

Strips with a sensitivity of 10 mU / ml can show pregnancy from 7-10 days after conception. Therefore, it is unnecessary to carry out tests earlier than 10 days. If you see two stripes, then there is a pregnancy (its probability is 99%). If the second strip is barely noticeable, then this is considered a positive result, just the concentration of hCG in the urine is small. There are times when tests can show a false positive result. This may be if you are taking specific medications or there is a tumor.

Step 6

The test is false negative, if the study was carried out too early, kidney function may be impaired, a lot of fluids are drunk.

If, nevertheless, the result is positive, then an error is excluded, and if it is negative and there is a delay, then an error is possible.

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