The LH Gold Rapid Screen Test (RST) is a rapid chromatographic immunoassay for the qualitative detection of luteinizing hormone (LH) in urine to aid in the detection of ovulation.
Ovulation is the release of an egg from the ovary. The egg passes into the fallopian tube where it is ready to be fertilized. In order for pregnancy to occur, the egg must be fertilized by sperm within 24 hours after its release. Immediately prior to ovulation, the body produces a large amount of luteinizing hormone (LH). This is known as the “LH surge” and usually takes place in the middle of the menstrual cycle. LH triggers the release of an egg from the ovary.
The LH Gold Rapid Screen Test (Urine) is a complete system to help you predict the time of ovulation and peak fertility. It is during this fertile time that pregnancy is most likely to occur.
The LH Gold Rapid Screen Test (Urine) detects the LH surge in urine, signaling that ovulation is likely to occur in the next 24-36 hours.
Important: The LH surge and ovulation may not occur in all cycles.
Determine the Length of Your Menstrual Cycle.
Your Menstrual Cycle Length is the number of days from the first day of your period (menstrual bleeding) to the last day before your next period starts. Think back over the last few months to decide what your usual cycle length has been.
Circle your usual cycle length on the WHEN TO START CHART below. Select the number directly underneath.
Starting the first day of your last period, count ahead the selected number of days on your calendar. This is the day you should begin testing.