Audiogram An audiogram is a graph that shows the audible threshold for standardized frequencies as measured by an audiometer. The Y axis represents intensity measured in decibels and the X axis represents frequency measured in hertz. The threshold of hearing is plotted relative to a standardised curve that represents 'normal' hearing, in dB(HL).
Test every 12 hours not every 24 hours. The perfect time for sexual intercourse is within 12-24 hours prior to the ovulation predictor FIRST turning positive. Especially if you test only once a day. This may sound like a surprise, but making love only after first getting a positive OPK may not get you pregnant at all.
Ovulation Predictor Kit Frequently Asked Questions. Ovulation predictor kits can be purchased online at Early Pregnancy Tests. Pricing ranges from $1.10/test to $.55/test based on the number of tests you purchase, and shipping is free for orders of $15 or more.he first is so that you can see if your LH surge corresponds properly with your thermal shift. You should shift 1-3 days after your positive OPK, though sometimes it takes as long as five days for those with a slow shift. Another reason is to make sure your temperatures stay up for at least 10 days after ovulation.