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A member asked:
When is the smallest , undetectable amount of hcg present after conception?
3 doctors weighed in across 2 answers
Within 5 days : Serum HCG starts rising within less than week of conception and is most reliable test to confirm pregnancy.
Answered 11/24/2016
5.3k views
Varies by brand: Quantitative blood (serum) tests detect HCG levels at 1 miu/ml. This must be ordered by a doctor. Urine tests advertise detection thresholds between 20 and 100 miu/ml, but this depends on the brand. Qualitative blood tests generally have a threshold of 25 miu/ml, and so are less sensitive than some available home pregnancy tests. Time is less important that accuracy and confirmation by physician.
Answered 12/23/2014
5.3k views
Related Questions
A member asked:
What is normal serum hCG level 20 days after conception?
2 doctors weighed in across 2 answers
A member asked:
Most docs say that its not possible to have an hCG level of 600ml/iu 3 days post conception; some say it can? (no hCG producing medical issues).
A doctor has provided 1 answer
A member asked:
I had an hcg done at ~3.5 weeks (11 days after conception) and it was 7100.... Is that way too high to even be multiples? I'm worried it's molar.
4 doctors weighed in across 2 answers
A member asked:
Had blood hCG after 8 days of possible conception it was negative. .Is it possible a false negative ? If possible when should I be getting a blood hcg
A doctor has provided 1 answer
A member asked:
If hCG isn't produced until 7-10 post conception, why do some dr's say that u can test positive (if pregnant) just 3days post conception? Who's right?
4 doctors weighed in across 2 answers
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How accurate are those hCG level charts that determines the range of hCG based on days / weeks after conception?
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