How the Drug Works
Pregnancy home tests detect the presence of human chorionic gonadotropin (HCG) in the urine. HCG is a hormone produced by the placenta during pregnancy. HCG will cause menstruation to stop. HCG slowly builds up in the body and appears in measurable levels in the urine 1 to 3 days after the first missed period.
Uses
To detect pregnancy.
False resufts: False positive results (test result is positive when no pregnancy actually exists) and false negative results (pregnancy is present but test result is negative) may occur: during menopause; when protein, blood or excessive thyroid hormone are present in the urine; with cold urine; in the presence of an ovarian cyst or ectopic pregnancy (out side the uterus); with certain drugs; performing the test too early; or when the test directions are not followed exactly. Specimen collection and preparation: Collect fresh urine in a clean dry cotainer or container provided. Do not use a wax cup. (Some products, however, may not require urine collection in a container.) For the best results, the sample should be the first morning urine. If testing cannot be done immediately, cover and refrigerate. Do not freeze. Let urine return to room temperature before testing. Do not mix or shake urine. Use the urine at the top of the container. Be sure to test the urine the same day.
Time: Depending on the test kit chosen, the time required for the test is often less than 5 minutes. Most test kits require 3 minutes or less to complete. Allow enough time to complete the test.
Drug Interactions
Tell your doctor or pharmacist if you are taking or if you are planning to take any over-the-counter or prescription medications or dietary supplements while testing for pregnancy. The following drugs and drug classes may interact with the test to cause questionable results.
- Anticonvulsants (eg, carbamaze oral contraceptivespine)
- Antiparkinson agents phenothiazines (eg, chlorpromazine)
- Steroids (eg, prednisone)
- Methadone (eg, Dolophine)
Guidelines for Use
- Follow the instructions exactly.
- For best results, use the first urine of the day.
- Consult your doctor or pharmacist if you are taking any medication (eg, birth control pills) which could cause questionable tests results.
- If urine is cloudy, pink or red or has a strong odor, do not do the test. Wait 1 to 2 days and try the test then.
- Read instructions before beginning the test. Have all of the materials you need on hand test kit, clean dry container, timer, and sink with cold running water.
- If test results seem questionable, check the expiration date on the test kit and repeat the test. Follow directions exactly.
- Negative results - Recount the number of days since your last period.
- Retest in 3 to 7 days. It is possible that not enough HCG has accumulated to cause a positive result. If you still do not have your period, contact your doctor. A health condition other than pregnancy may be causing your missed periods.
- Positive results-Contact your doctor to confirm the test results.
- Regardless of test results, contact your doctor if there are any signs of pregnancy (eg, delayed menstrual cycle, morning sickness).
- For some tests, color vision may be needed to properly read test results . Have someone else confirm results if in doub
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