How long does hCG take: a pregnancy test is being prepared, the test is ready through, wait for the result, blood, how quickly they do it, production time, days

A study of venous blood or rapid urine tests can reveal an increased level of gonadotropin in the body, which is produced by the outer lining of the chorion. A woman should know how the analysis for hCG is carried out and how long it is done. Thanks to the answers, she will be able to obtain accurate laboratory results.

How much analysis is done

To confirm or disprove pregnancy, urine or blood is tested for hCG. In the first case, express tests are used, which are paper with a chemical reagent applied to it. It changes shade when it reacts with gonadotropin if the hormone level exceeds 5-25 mU / ml. Most often, such tests are carried out after 2-4 weeks from the moment of possible fertilization of the egg. There is no need to prepare for it.

To determine the level of the hormonal compound, a biochemical blood test for hCG is performed within a week after implantation of an egg or IVF. This study is more accurate, because initially gonadotropin is released into the bloodstream and only after filtration by the kidneys enters the urine.

How much analysis for hCG is done depends on the research method.

Regardless of the type of biomaterial, the result will be ready within 24-48 hours.

Rapid tests are taken on the day of analysis. HCG decoding will be ready within 3-4 hours. In the II or III trimester of embryonic development, when conducting screening tests, it is possible to wait up to 14 days.

How long to wait for the result

The term for obtaining the result of hCG depends on the technology of laboratory research. On average, the procedure takes about 2 days. There are the following methods for conducting a blood gonadotropin test:

1. Qualitative. It only allows you to refute or confirm the presence of an embryo in a woman's body. The result will be ready within 5 hours in the laboratory.
2. Quantitative. After the analysis, the doctor receives the exact value of hCG in the blood plasma or urine.

The speed of obtaining the result is also influenced by the type of medical institution in which the woman was examined. In city polyclinics, a large number of tests are carried out due to the number of patients, at the same time they carry out tests for pregnancy, oncology and infections. Therefore, the results are issued on a first come, first served basis, and a woman can expect them for 3-7 days.

There are fewer patients in private clinics, so the result can be obtained in 24-48 hours. In medical centers, it is possible to communicate preliminary results to patients by phone, fax or e-mail.

How long will the express test be ready

The duration of obtaining the result of a rapid pregnancy test depends on the type of technology used:

1. Strip or strip. It is the cheapest and fastest test for confirming or refuting the implantation of the ovum into the endometrial layer. The test is conducted independently. It is a two-layer paper strip impregnated with a reagent. It is dipped in the morning urine for 20-30 seconds. When in contact with urine with an increased content of gonadotropin, it shows 2 lines in the presence of an embryo. Testing takes 2-10 minutes depending on the amount of the hormone in the urine.
2. The tablet. Differs in increased accuracy. The reagent paper is located inside the plastic case. During the manufacturing process, a hole is made for the introduction of urine. A small window allows you to dose the volume of biomaterial and reduces the likelihood of error. Urine is collected in a sterile container, after which, using a pipette or syringe, 4-5 drops of liquid are applied into the hole of the plate. In the presence of pregnancy, the second band appears within 5-7 minutes.
3. Jet. The paper is impregnated with a large volume of chemical reagents, so the test is sensitive to changes in hCG in urine in early pregnancy. Allows you to identify the presence of an embryo within a week after its implantation into the uterine cavity. The test is placed under a stream of urine for 10 seconds. Results will be ready in 1-5 minutes. Unlike other tests, inkjet tests can be used up to 5 days before the start of your period.
4. Digital. There is a special electronic display on the body. The device calculates the exact concentration of the hormone in urine and, based on the data obtained, gives a result about the estimated time of conception. The sensitivity of the digital test does not differ from that of the inkjet test. The device is placed in the morning urine collected in a sterile container. Testing is possible 48 hours before the start of your period. The accuracy of the results is 99%. The analysis speed is 2-3 minutes.

Analysis of hCG using tests is carried out at home. It does not require additional training. It is advisable to do it in the morning, when the hCG level in the blood and urine rises.

What affects the timing

In a confirmed pregnancy, the following factors may affect the readiness of the results:

• taking antibacterial, hormonal, psychotropic drugs;
• the presence of intrauterine fetal abnormalities;
• recent spontaneous abortion, due to which there is a hormonal imbalance in the female body;
• chromosomal abnormalities in early gestation;
• severe toxicosis;
• gestational diabetes mellitus;
• malignant neoplasms of the adrenal glands, cervix, ovaries;
• embryonic development lasts more than 41 weeks;
• implantation of the ovum occurred outside the uterine cavity;
• development of placental insufficiency;
• death of the fetus, not accompanied by its rejection.

Pathological processes often lead to the development of hormonal imbalance, due to which it is necessary to double-check the test results or conduct additional examination. Fetal death, malignant neoplasms and abnormalities in the embryo cause a decrease in hCG or leave the level of a hormonal substance in a stable state. Normally, it should double up to the 13th week of pregnancy within 1-2 days.

If a woman is not pregnant, the period for obtaining the test result increases when taking contraceptives for oral use, in the presence of malignant neoplasms. Tumors are more often localized in the gastrointestinal tract, ovaries, testes and uterine cavity. To obtain an accurate clinical picture, 2 analyzes are carried out, they can be done with a difference of 72 hours. Getting the result is not long. It takes about 48 hours.