Quantitative Pregnancy Blood Test
Test Code: 004416
Specimen Type: Blood
Quantitative Pregnancy Blood Test (Labcorp)
The quantitative pregnancy blood test measures the level of Human Chorionic Gonadotropin (hCG) in the blood. The most common use for this test is to help determine when someone is pregnant. The major benefits of pregnancy blood testing are a higher level of accuracy than standard at-home urine tests as well as the ability to detect a pregnancy earlier than other methods.
Shortly after conception, the placenta begins producing the hormone hCG. HCG is typically detectable as early as 7 days after conception. During the first 14-16 weeks of pregnancy, hCG levels normally increase quickly and then begin to gradually decrease. Measuring the level of hCG in the blood can not only tell if there is a pregnancy, but also help to estimate how far along the pregnancy is. In addition to being used as a pregnancy test, the quantitative hCG test may also be ordered during pregnancy to help determine if the pregnancy is progressing normally. Unusually low levels of hCG may indicate an ectopic pregnancy. Unusually high levels of hCG may indicate multiple pregnancies such as twins or triplets.
Elevated hCG can also be caused by certain types of cancer or tumors in the uterus. For men, hCG is sometimes tested to aid in diagnosing cancer of the testicles.
This test is typically ordered when someone is experiencing signs of pregnancy or has already had a positive result on an at-home pregnancy test. Some of the earliest signs of pregnancy include a missed menstrual period, unusual tiredness or fatigue, frequent urination, and nausea. In the event of a negative result, if the signs of pregnancy continue, it is recommended to wait 1-2 weeks and test again.
Please note: Test results that are negative with an hCG below the detectable threshold will not be able to provide a specific numerical value.
Quantitative hCG blood testing can also be used to monitor a pregnancy, especially if a person's doctor is concerned they may be experiencing an ectopic or failing pregnancy. In this case, it is common to order a Progesterone Test as well. This test may also be used to monitor a woman who has had a miscarriage.
Request A Test offers an Early Pregnancy Monitoring Panel that includes hCG and Progesterone blood testing. A qualitative pregnancy blood test that just provides a positive or negative result is also available.
Turnaround time for the Quantitative Pregnancy test is typically 1 business day.
Where can i find a Quantitative Pregnancy Test near me?
Check our lab finder to locate a collection site in your area.
Note: Result turn around times are an estimate and are not guaranteed. Our reference lab may need additional time due to weather, holidays, confirmation/repeat testing, or equipment maintenance.
This test can detect pregnancy as early as 7 days after conception. For the highest level of accuracy it is recommended to take the test 10 days after a missed menstrual period or any time after.
It is recommended that someone taking Biotin (also known as vitamin B7 or B8, vitamin H, or coenzyme R) stop consumption at least 72 hours prior to the collection of a sample.Pregnancy Overview