Logo femininebook.com
General Practice 2023

Best pregnancy test: from farmácia or blood?

Table of contents:

Best pregnancy test: from farmácia or blood?
Best pregnancy test: from farmácia or blood?
Anonim

The pharmacy pregnancy test can be done from the 1st day of the missed period, while the blood test to know if you are pregnant can be done 12 days after the fertile period, even before the period is late.

However, the pregnancy tests sold in the pharmacy have different sensitivity and therefore, when the test is negative, but the symptoms of pregnancy are present, it should be repeated after about 3 to 5 days, because the amount of hormone in the urine increases each day, and the result may change to positive after this period.

It is also important to remember that home tests using chlorine, bleach, cola, needle and vinegar are unreliable and should not be used to confirm pregnancy.

Which exam to take

There are two tests that are reliable, the blood test done in the laboratory and the urine test, which you can buy at the pharmacy. These tests work because they measure the amount of the Beta HCG hormone, which is produced only during pregnancy and is present in a woman's urine or blood.

1. Pharmacy Test

The pharmacy test measures the amount of beta HCG hormone present in the urine, and can be done from the 1st day of delay of menstruation. It is a quick and simple test that gives the result in a few minutes, however it is important that the woman is attentive to the result, especially if the test is done very early, because it can be difficult to detect the hormone in the urine.

So, in case of a negative result, but with the presence of pregnancy symptoms such as increased sensitivity of the breasts and increased oiliness of the skin, the ideal is to repeat the test after about 3 to 5 days.To confirm the pregnancy, it is recommended that the woman carry out a blood test, so that it is possible to know which week of pregnancy the woman is in according to the levels of beta HCG circulating in the blood.

Check out the first symptoms of pregnancy.

2. Blood test

The blood test is carried out in the laboratory and is the most suitable for confirming pregnancy, as it indicates the amount of hormone circulating in the blood, and even small concentrations that could not be detected in the urine test can be identified.

To perform this test it is not necessary to have a medical prescription or to be fasting, however some laboratories may request that the woman fasts for up to 4 hours before taking the blood sample.

The test result comes out a few hours after collection and to be completely reliable, it must be done at least 1 week after sexual intercourse without a condom, even if menstruation is not late yet.

Possible pregnancy test results

Possible drug test and blood test results can be:

Pharmaceutical Test Beta HCG Blood Test
Positive Darkest strip or 2 stripes more than 5 mIU/ml
Negative No change or only 1 stripe less than 5 mIU/ml
False negative No change or only 1 stripe between 5 to 25 mIU/ml

Positive result

When the pregnancy test is positive, it indicates that the woman is pregnant and should undergo prenatal care and begin preparing for the baby's arrival.Furthermore, according to the amount of beta HCG identified in the blood, it is possible to know how many weeks the woman is.

Put the value of the beta HCG test result in the following calculator to know the gestational age:

Negative result

In cases of negative result, but delay in menstruation continues, repeat the test after about 1 week to confirm the previous result. If the new blood test is negative again, it means that the woman is not really pregnant and that it is necessary to investigate the causes of the delay in menstruation. See 5 Common Causes of Late Period.

While you don't have confirmation of pregnancy, take this quick test to find out your chances of being pregnant:

Find out if you are pregnant

Illustrative image of the questionnaire
  • Yes
  • No
  • Yes
  • No
  • Yes
  • No
  • Yes
  • No
  • Yes
  • No
  • Yes
  • No
  • Yes
  • No
  • Yes
  • No
  • Yes
  • No
  • Yes
  • No

Popular topic