The Truth About Early Pregnancy Tests
You've missed your period and you think you may be pregnant.
You've been trying for so long and you really would like to
know! What should you do now? Well, in the early days, there was
a trip to the doctor and the rabbit test. Unfortunately, if you
were expecting all the rabbit could expect or hope for was a
quick death. Today there is something better! In the early
1970's the home pregnancy test came to be. By detecting levels
of human chorionic gonadotropin (hCG) in the urine we are now
able to quickly and effectively find out if we are expecting, in
our own home without endangering any wildlife. But, how reliable
are these tests? Don't be misled by manufacturers claiming 99%
accuracy within the first day or two of a missed period. New
research suggests that the majority of home pregnancy tests are
not able to detect the small amounts of hCG passed in the urine
this soon. "If it's really essential to you to know whether
you're pregnant as early as possible, then you must use a
super-sensitive test." It was noted that among 18 products
tested, only one - First Response Early Result Pregnancy Test -
appeared to be sensitive enough to detect pregnancy in at least
95 percent of women on the first day of their missed periods.
"Only 3 of the 18 products tested produced a positive result
when testing urine that contained the amount of hCG typically
present during the second day after a woman's first missed
period. By the third day, 8 products tested appeared effective.
It should be noted that all home pregnancy tests become more
accurate after at least one week of a missed period".
CONGRATULATIONS! ************************
Source: Scienceblog, Reuters Health (c) 2004 Karen Zastudil