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- $Unique_ID{BRK02188}
- $Pretitle{}
- $Title{Home Ovulation Prediction Kits}
- $Subject{Home Ovulation Prediction Kits conceive child effectiveness purpose
- fertility menstrual cycle ovary egg intercourse ovulating basal body
- temperature progesterone egg-production process chemical change luteinizing
- hormone LH urinalysis OvuSTICK OvuQuick First Response Kit conceiving
- diagnostic tool substitute fertility workup aid proper timing pregnancy}
- $Volume{}
- $Log{
- Anatomy of the Female Reproductive System*0006101.scf
- The Menstrual Cycle*0009101.scf}
-
- Copyright (c) 1993 Tribune Media Services, Inc.
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- Home Ovulation Prediction Kits
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-
- QUESTION: My wife and I are trying to conceive our first child, and we're
- wondering about the effectiveness of home ovulation prediction kits. What's
- the purpose of these kits and how do they work? Do you think they are worth
- the price? We appreciate your column and your good advice.
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-
- ANSWER: The purpose of the ovulation prediction kits is to identify the peak
- period of a woman's fertility during her menstrual cycle. Fertility
- specialists identify this peak as occurring the day preceding and the day of
- ovulation. Though the egg released by a woman's ovary can live only 12 to 24
- hours, sperm can survive within the uterus for 48 to 72 hours. Couples who
- try to conceive will therefore increase the odds of success by having
- intercourse during this peak fertility time.
- Because every woman's menstrual cycle varies, there was previously no
- simple way to predict when ovulation would occur, with the exception of
- measuring the ovulating woman's basal body temperature--or waking body
- temperature--which tends to rise the morning following release of the
- unfertilized egg, due to speeded-up production of progesterone during the
- egg-production process. Obviously, becoming aware of the basal body
- temperature's rise can only take place in hindsight, after the egg has been
- released, which necessarily limits the time in which conception can be
- pursued.
- Home ovulation prediction kits differ in being able to predict the time
- of ovulation through measurement of a chemical change which occurs prior to
- release of the egg. A surge in the luteinizing hormone (LH), which starts 24
- to 36 hours in advance of ovulation, usually in the early morning hours, is
- unaffected by illness, amount of sleep, emotional factors or other things that
- can disrupt basal body temperature. Ovulation prediction kits employ a
- complex technical process to detect the change in LH through urinalysis.
- At present there are at least three different kits on the market.
- OvuSTICK, including nine tests in a one-month kit, is a 12-step process
- requiring careful attention to instructions. Users collect urine to test
- throughout the day; the surge can therefore be detected in its first stages.
- The kit is easy to use: a stick immersed in the urine sample turns dark blue
- color when the surge has taken place. OvuQuick is another kit that can
- usually be found at most pharmacies.
- A third brand, the First Response Ovulation Prediction Kit, is even less
- expensive and less complicated, though it too requires some attention to
- timing and details. Surging is monitored by adding color-changing chemicals
- to a series of urine samples. In this test only the morning's urine is
- collected, with the goal of identifying the surge's peak rather than its
- onset. The kit thus predicts ovulation only 12-24 hours in advance.
- Since a fertile couple has only a 10 to 20 percent chance of conceiving
- in any given month and it takes average couples several months for the woman
- to become pregnant, using any of these kits regularly should not be used as a
- diagnostic tool for fertility problems or as a substitute for a fertility
- workup. Rather they are an aid to proper timing, which in this case is
- essential for success. The average cost of around $40 does not seem excessive
- for these methods, which all have been proven to be effective when used as
- directed.
-
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-
- The material contained here is "FOR INFORMATION ONLY" and should not replace
- the counsel and advice of your personal physician. Promptly consulting your
- doctor is the best path to a quick and successful resolution of any medical
- problem.
-