There are different pregnancy examinations that can be conducted at the physician’s clinic or at home. The tests can be classified as:
- Blood test: hCG presence is detected through laboratory test conducted on the woman’s blood. Two different types of pregnancy tests on blood can be performed:
- Qualitative HCG test: It is performed to identify if hCG is produced in body or not and offers simple no/yes answer, if the person is pregnant. Pregnancy can be confirmed by doctors even after the missed period as early by 10 days.
- Quantitative Beta hCG test: It is quite accurate and can measure hCG specific level in blood. It can also help to track issues faced during pregnancy. The lab tests performed can help determine the hCG levels. It is in milli-international units that the levels get measured in milliliter of blood. In case, the hCG levels are found to be outside the normal range, then it may mean different things.
- Clinical urine tests: It is at the physician’s office that the urine test is best performed. These are based upon hCG detections’ principles as HPT and quite accurate. All potential errors can be eliminated effectively which may affect test accuracy. However, urine test is likely to be more expensive when compared to HPT, depending upon the co-payments.
- Home based Pregnancy Tests: Known in short as HPT is available in standard stick forms and in digital types. The latter can be used to about six days before the missed period and the standard type could be used to about four days before the missed period. If test is conducted much early, then false negative result might be derived. This would mean that the woman is pregnant, however, the test results are found to be just the opposite.
The test is better conducted in the morning, since the hormone levels and urine are likely to be much more concentrated at that point of time. The stick is to be placed in midstream urine and pointing downwards and then laid flat, thus giving it about 3-5 minutes. Urine samples can also be collected in dry, clean container and the absorbent tip dipped into the collected urine sample only for 20 seconds. Once sampling is done, the absorbent tip is to be kept pointed downwards. The test stick is not to be held with absorbent tip facing upward direction. The test is to be reconducted, if results are found to be negative.
All tests conducted at the home can work simply measuring the hormone called HCG (human chorionic gonadotropin). The developing placenta releases the hormone and its traces could be identified in the urine, once the uterus is implanted by the embryo. HCG in 28 day ovulation cycle occurring within on the 14th day could be identified in the urine in small quantities by about the 23rd day or just five days before menstruation.
It is necessary to understand that all tests tend to come with an expiration date. Therefore, taking professional consultation with an experienced physician is of utmost importance.