Are blood tests for pregnancy always accurate?

Depends on gest age. The blood pregnancy test or beta HCG is very sensitive and specific. The hormone is produced only by a developing human pregnancy. However, one result is only a snapshot. A very early pregnancy could be normal, not normal or possibly an ectopic pregnancy. Sometimes it is necessary to check the levels over several days to discern how the pregnancy is going.

Related Questions

How accurate are blood tests for hypothyroidism in pregnancy?

T4 higher. Tsh is usually unaffected, however, serum levels of T4 are higher during pregnancy than during non-pregnant state. In combination, these tests are accurate during pregnancy. Read more...

How accurate are HCG pregnancy hormone blood tests at what would be 15 weeks?

Accuracy in what way. At 15 weeks any pregnancy test would show positive if you were pregnant. The quantitative number, however, would not be very precise about just how pregnant you are. An ultrasound would be better for dating. Read more...

Do regular blood tests show pregnancy?

No. 'routine' blood tests as from a scheduled physical examination test for basic electrolyte levels (sodium, potassium, calcium, chlorides, etc), blood counts (how many red and white cells, level of hemoglobin, etc) and perhaps certain enzyme levels. They do not routinely include the hormone indicative of pregnancy, human Chorionic Gonadotropin (hcg). Tests for this must be ordered separately. Read more...

Which blood tests are necessary in pregnancy?

OB labs. Depends on the doc. I get blood type and antibody screen. Complete blood count. Hepb, c. Hiv. Rubella. Syphilis. Cystic fibrosis or sickle cell screen. Glucose tolerance test. Additionally, i get a urine culture, gonorrhea/chlamydia test, pap smear (if due)... These aren't blood tests but part of most OB lab panels. Read more...
Maternal and fetal. Health. Blood tests on the mother are done to asses her health and the fetal health. The sites given below address these two issues. http://www.nhs.uk/conditions/pregnancy-and-baby/pages/antenatal-care-checks-tests.aspx http://www.Lpch.Org/diseasehealthinfo/healthlibrary/pregnant/tests.Html. Read more...

What blood tests should I have during pregnancy?

Depends on risks. First trimester blood work includes: blood count, blood type, exposure to hiv, syphilis, hepatitis b, immunity to rubella, pap smear and cultures for gc & chlamydia in the second trimester, screening for anemia and gestational diabetes. In the third trimester, a second screen for hiv, syphilis and a vaginal culture for group b strep. Additional testing may be offered depending on risk factors. Read more...
See below. There are a variety of tests for maternal and fetal health and it would be prudent to follow your doctor's advice. See this site for more info. http://www.lpch.org/diseasehealthinfo/healthlibrary/pregnant/tests.html. Read more...