Serum HCG
 

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Alternative Names
Beta-HCG in blood serum - qualitative; Human chorionic gonadotrophin - serum - qualitative; Pregnancy test - blood - qualitative; Serum HCG - qualitative; HCG in blood serum - qualitative
Definition Return to top

A qualitative HCG blood test checks to see if there is a hormone called human chorionic gonadotropin in your blood. HCG is a hormone normally produced during pregnancy.

HCG urine test
Quantitative pregnancy test (reveals specific level of HCG in your blood)
How the Test is Performed

Blood is typically drawn from a vein, usually from the inside of the elbow or the back of the hand. The site is cleaned with germ-killing medicine (antiseptic). The health care provider wraps an elastic band around the upper arm to apply pressure to the area and make the vein swell with blood.

Next, the health care provider gently inserts a needle into the vein. The blood collects into an airtight vial or tube attached to the needle. The elastic band is removed from your arm.

Once the blood has been collected, the needle is removed, and the puncture site is covered to stop any bleeding.

How to Prepare for the Test
No special preparation is usually necessary.

How the Test Will Feel
When the needle is inserted to draw blood, some people feel moderate pain, while others feel only a prick or stinging sensation. Afterward, there may be some throbbing.

Why the Test is Performed
Most often, this test is performed to determine if you are pregnant or not. The serum HCG level may also be high in women with certain types of ovarian tumors or men with testicular tumors.

Normal Results
The test is negative if you are not pregnant.
The test is positive if you are pregnant.
What Abnormal Results Mean Return to top

If your serum HCG is positive and you do not have a pregnancy properly implanted in the uterus, it may indicate:
Ectopic pregnancy
Miscarriage
Testicular cancer (in men)
Trophoblastic tumor
Hydatidiform mole
Ovarian cancer
Risks Return to top

There is very little risk involved with having your blood taken. Veins and arteries vary in size from one patient to another and from one side of the body to the other. Taking blood from some people may be more difficult than from others.
Other risks associated with having blood drawn are slight but may include:
Excessive bleeding
Fainting or feeling light-headed
Hematoma (blood accumulating under the skin)
Infection (a slight risk any time the skin is broken)
Considerations
False positive tests may occur when certain hormones are increased, such as after menopause or when taking hormone supplements.

A pregnancy test is considered to be about 98% accurate. When the test is negative but pregnancy is still suspected, the test should be repeated in 1 week
Ref: MedlinePlus


 

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