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Re: question about hpts-to anyone

From: R. Daniel Braun, MD (anonymous@obgyn.net)
Thu, 6 Sep 2001 11:32:08 -0500 (CDT)


At Thu, 6 Sep 2001, Jane wrote: >
>I have heard people say that sometimes when they test too early they
>will get a negative home pregnancy test, but then tested later and had a
>positive one. I am curious because I have also heard people say they
>have tested and had a positive test with a very faint line. Do all
>false negatives have some type of very faint line or can there be
>nothing there but the control line?
>
>Thanks.
>
>--
>Jane
>

These are really not PREGNANCY tests. They are hCG tests. In general, if one has hCG present they will be pregnant or have very recently been pregnant. There are some other things that very rarely produce hCG. If there is a certain concentration of hCG in the urine, they will cause a certain chemical reaction to occur and make a (-) into a (+) or an empty area develop a spot or whatever. A faint line may mean that there is a borderline level. If this is the case, it should be come a fairly OVIOUS line within 2 days, because with a normal pregnancy the level will double every 2 days at this stage.

--
R.Daniel Braun, MD  FACOG   FOG
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