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Re: 2 positive hpts, negative quantitative blood test - confused about the results.......

From: Jane (anonymous@obgyn.net)
Fri, 29 Mar 2002 10:31:48 -0600 (CST)


At Thu, 28 Mar 2002, Confused wrote: >
>I took two home pregnancy tests, with positive results. Both tests were
>done exactly as the directions said, and checked within the appropriate
>time limits. My spouse and friend saw the results and agreed they
>appear positive. I had a quantitative blood test and the nurse called
>with the results. She said the test was negative, and when I asked what
>the hcg count was, she replied, "your level was -1". And, then she
>replied anything under 5 was negative. I have always heard that every
>woman has some level of hcg - so how can mine be a negative number???

It is not true that every woman has some level of hcg - hcg is not found in the normal, nonpregnant human being! I do not know how you can have a negative number as a result. Maybe she meant your number was "less than one"? Many labs do say anything under 5 is negative. I'm not sure why - maybe because the testing procedure isn't particularly accurate, so they may get a result of up to five even in the absence of hcg? In any case, I'd check that result again. Negative one? Sounds weird to me.

>And, how can a home test detect hcg when I supposedly have absolutely no
>hcg in my body (according to the blood test). And last, I was taking
>aygestin 5mg to regulate my cycles and stopped before the last cycle
>started (Feb 11 was LMP). Can the aygestin affect my hcg levels? Can

It can't! It's possible you had an experience like I did - two positive hpts - first one faint, next one even fainter. I went in for a blood test the same day as that second test and my hcg was 13. Two days later, my hcg was zero. I'd lost the pregnancy.

I don't think anemia would affect the results, as hcg is not associated with red blood cells.

Good luck! jane




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