A serum (blood) pregnancy test is not necessarily more accurate than a urine test, but results may be obtained sooner in the pregnancy with a serum test for hCG, the hormone that signals pregnancy. Both methods test for the presence of human chorionic gonadotrophin which is present in the blood about 48 hours after implantation has occurred. It takes about 4 days for hCG to show up in detectable levels in the urine.
Urine tests and serum tests are both highly accurate (about 97%) when performed correctly.
Serum HCG tests may detect a pregnancy 6-14 days after ovulation, depending on the time of implantation.
Urine HCG tests may detect a pregnancy 10 - 18 days after ovulation, depending on the time of implantation.
Although urine tests are almost 100 percent accurate, there could be something affecting the test that is not a pregnancy. Blood tests, are completely accurate, and i recommend anyone to get a blood test instead of a urine test, because they can tell right away if your pregnant, and it wont be something setting of the pregnancy test, when really it isn't a pregnancy, and it's always important to be absolutely positive.
- Nicole.
They are, but there are drawbacks--they're more expensive, more intrusive, and it's harder to train a test administrator to draw a blood sample than it is to collect a urine sample. I can't see blood testing really catching on as the first choice of anyone--urine testing works well enough. Of course, if you are going to run a blood sample through your machine anyway, telling it to look for drugs too isn't much of a problem.
a blood test is highly more accurate then a urine test. doctors will usually give you a urine test after a blood test.
yes
If the urine test is positive it is concidered to be as accurate as a blood test. However, blood test can detect pregnancy even after 7-10 days past conception. Blood test is always more SURE than urine test I would rely on blood test more! All the best!
Yes you should take a blood test. It is more accurate & can be taken sooner than a urine test.
The liver and pancreas release glucose right into the blood, therefore you will get a more accurate amount if you test your blood.
Yes, you can test your blood sugar through a urine sample. The sample is checked with a colored dipstick that measures the presence of glucose in the urine. The blood sugar test with the blood sample is more accurate and more conventional.
If you have taken something to "flush" your system of drugs in urine, the blood might make the test still show up positive as blood tests give a more accurate report of your usage.
You can get a blood test done, which is more accurate than a home urine test. Also, an ultrasound test can be done to actually see the pregnancy.
Urine tests are more accurate than hair tests.
As you had a blood test, you are definitely not pregnant. The blood test is 100% accurate.
They take a blood test so they can see what your hcg levels are. Your levels get higher the farther along you are. A blood test can determine pregnancy alot sooner than a urine test and is also more accurate.
A blood test would actually be more likely to be more accurate, but urinalysis is more cost effective and easier to accomplish. It also requires very little training, which is different than a blood test.
For most women yes. There are a few women who are pregnant with a negative blood and urine test. But very few.
The presence or absecne of HCG (human chorionic gonadotropin) can be measured in both the urine and in blood. Quantitative analysis (showing the rising levels of HCG as pregnancy progresses) can only be done in blood.