Blood Drug Testing

how accurate are blood test to detect pregnancy?

last period was 12/22/2008 but at home urine test are negative. about to take a blood test to detect possible pregnancy but just wondering how accurate are they really?

Public Comments

1. Very accurate. A blood test is to check your HCG levels, the hormone HCG is only detectable when you're pregnant, a non pregnant woman usually has 0.05 or under in their system, if it's higher that usually indicates a pregnancy.
2. They will detect the pregnancy hormone if it is in your system. So they are pretty darn accurate. If the blood test comes back negative then you are not pregnant. You would be about 9 weeks pregnant now so definitely enough pregnancy hormone would be in your blood to turn a test positive.
3. 100% !!! That's how I confirmed my pregnancy at 4 weeks. HCG and Progesterone came back +!
4. It's the only ACCURATE test out there.....
5. Completely accurate. If they cant detect rising levels of HCG in your blood, you are not pregnant. Blood tests aren't like urine tests, for some women, HCG is never detected in their urine, but if you are pregnant, it will be in your blood since the baby is attached to your body through the umbelical cord. If you are indeed pregnant, they will be able to tell.
6. I am pretty sure blood tests are 100% accurate.
7. 100%
8. Very accurate. Unless someone in the lab screws up.
9. Very, if your blood test comes back negative you should talk to your doctor about this it could be a sign of something else that could be a problem if left unchecked.
10. as accurate as you can get
11. They are extremely accurate. They can detect any amount of HCG in your blood. They are much more accurate then an at home pregnancy test because you have to have a certain amount before theyll show positive. If you're pregnant the blood test will show. Good luck with the blood test.
12. They are 99.99999% accuate. Id say even more. They only way that it would be wrong is by human error.
13. 100%