How does the FIRST RESPONSE™ Rapid Result Pregnancy Test work?
The test detects human chorionic gonadotropin (hCG) in urine. hCG is the hormone your body makes during pregnancy. The amount of pregnancy hormone increases as pregnancy progresses.
When can I test with FIRST RESPONSE™ Rapid Result Pregnancy Test?
At any time of the day. You do not have to use first morning urine. Generally, however, your first morning urine contains the highest level of the pregnancy hormone. You can use the FIRST RESPONSE™ Rapid Result Pregnancy Test on the day of your missed period, or any day thereafter.
How accurate is the FIRST RESPONSE™ Rapid Result Pregnancy Test?
In studies of urine samples representative of both pregnant and non-pregnant subjects, laboratory technicians obtained the correct expected result in more than 99%* of the samples.
*99% accurate at detecting the pregnancy hormone. However, some pregnant women may not have detectable amounts of pregnancy hormone in their urine on the first day of the missed period, or may have miscalculated the first day of their period.
I have waited longer than 1 minute, and there are still no lines in the Result Window. Is there anything wrong?
Your result should appear within 1 minute on the day of your missed period. There should be at least one pink line in the Result Window at 5 minutes to indicate that the test is completed and you have done it correctly. If not, the test is invalid. This could be due to insufficient urine on the Absorbent Tip or not holding the device with the Absorbent Tip pointing downward while replacing the Overcap. You should retest with another FIRST RESPONSE™ Rapid Result Pregnancy Test, carefully following all directions.
Will the result change if left standing for a certain period of time?
The test result should be read as soon as possible after waiting 1 minute. A positive result will last for at least 48 hours. A negative result should not be read after 10 minutes.
Do any drugs or medications affect the test?
Only medications containing the pregnancy hormone (hCG) can affect the result (e.g., A.P.L.4, Pregnyl5, Profasi6 and Pergonal6). The test should not be affected by hormone therapies containing: Clomiphene citrate (e.g., Clomid7 and Serophene6); alcohol; painkillers; antibiotics; or the contraceptive pill.