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What causes positive followed by negative pregnancy test results?

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Posted on Fri, 21 Apr 2017
Question: I took to test 1 faintly positive and other negative tell me why please
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Answered by Dr. Sameer Kumar (14 minutes later)
Brief Answer:
get a serum beta hcg test done

Detailed Answer:
Hello,
Thanks for the query,
As both the urine pregnancy test kits show dichotomous and contradictory results, it is better that you may get a serum beta hcg test done, which is a blood test.
If the hcg levels are more than 5mIU, then you are surely pregnant , else you are not.

Often there are false positives results seen with urine pregnancy test kits, so serum beta hcg test should be undertaken instead.
The resulting second line should be as dark as the first line.
Regards
Above answer was peer-reviewed by : Dr. Chakravarthy Mazumdar
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Follow up: Dr. Sameer Kumar (2 minutes later)
I feel prego how can this be
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Answered by Dr. Sameer Kumar (6 minutes later)
Brief Answer:
answered

Detailed Answer:
Hello,
PMS symptoms and pregnancy symptoms are just the same. Clinically indistinguishable, so a serum beta hcg test confirmation shall be mandatory to lament you as pregnant conclusively.
Regards
Above answer was peer-reviewed by : Dr. Chakravarthy Mazumdar
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Answered by
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Dr. Sameer Kumar

OB and GYN Specialist

Practicing since :2002

Answered : 1701 Questions

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What causes positive followed by negative pregnancy test results?

Brief Answer: get a serum beta hcg test done Detailed Answer: Hello, Thanks for the query, As both the urine pregnancy test kits show dichotomous and contradictory results, it is better that you may get a serum beta hcg test done, which is a blood test. If the hcg levels are more than 5mIU, then you are surely pregnant , else you are not. Often there are false positives results seen with urine pregnancy test kits, so serum beta hcg test should be undertaken instead. The resulting second line should be as dark as the first line. Regards