This is a test to detect beta-HCG (a hormone normally produced during pregnancy) in urine.

A urine sample is obtained. Urinate in the normal manner, but collect a sample in a container. Usually a first-morning sample (the first time the person urinates in the morning) is preferred, because it is the most concentrated.

Home pregnancy tests require the test strip to be dipped into the urine or passed through the urine stream while urinating. Carefully follow package directions.

No special preparation is needed. The first morning urine sample is often recommended.

Urinate in the normal manner, but collect a sample (or dip the test strip in the urine stream) as directed.

Urine HCG tests are a common method of determining if a woman is pregnant. A home pregnancy test usually uses this method.

HCG is detectable in the blood or urine 1 to 2 days after implantation of the fertilized egg (that is, 10 days after ovulation). In practical terms, the best time to test for pregnancy at home is 7 to 10 days after you would have normally menstruated.

• The test is negative if you are not pregnant.
• The test is positive if you are pregnant.

A pregnancy test, including home pregnancy test when properly performed, is considered to be about 98% accurate. "Positive" results are more likely to be accurate than "negative" results. When the test is negative but pregnancy is still suspected, the test should be repeated in 1 week.

Abnormal results may indicate:

• ectopic pregnancy
• miscarriage
• testicular cancer
• trophoblastic tumor

There are essentially no risks (except for "false positive" or "false negative" results).

False positive tests may occur when certain hormones are increased, such as after menopause when taking hormone supplements.

Incorrect (false positive or false negative) results may occur with:

• blood in the urine
• protein in the urine
• use of tranquilizer medications (e.g., Compazine, Thorazine)
• use of penicillin or methadone
• urinary tract infections
• hepatitis