Doctor insights on:
Yes: Serum is the part of blood. It is the liquid part left when blood clots and is centrifuged . Many 'blood' tests, including beta HCG are done on serum. ...Read more
Hormone test: Human chorionic gonadotrophic hormone is generally increased in pregnancy and serves as the basis of pregnancy tests. Quantitative HCG tests also provide information about the health of the placenta. High HCG levels are also seen in some tumors of the ovary and testes. ...Read moreSee 1 more doctor answer
Yes: Yes is correct! the blood test will turn positive at least several days earlier. ...Read more
Is hiv-1-pcr quantitative and HIV RNA PCR quantitative same tests?can DNA PCR test be quantitative?
Home pregnancy test was positive but blood hCG came back negative. Ob perform a blood test again. Hcg 750 progesterone 21. Why first hCG was negative?
Lab error: Presuming the first blood pregnancy test was close to the second, one of them had to be a lab error, probably the first one that was negative. If there is any question about the health of the pregnancy, your doctor can follow the bhcg level to see if it is rising appropriately and obtain an ultrasound when the level is high enough.For more info www.Askyourgynecologist.Org. ...Read more
Immunochromatography rapid antibody test negative @42 days.Blood serum CMIA screening test@50 days(7th week) is 0.15 non reactive. Results conclusive?
Need more info: This seems like a normal level for early pregnancy, but to be sure, you should state how many weeks you are. As long as you're having an appropriate rise in your HCG level (doubling every 48-72 hrs), then there's nothing to worry about. There's no need for you to continue checking your HCG level, however, unless you have concerns for miscarriage or your doctor recommends it. Congrats! ...Read moreSee 1 more doctor answer
False negatives: All lab tests have a certain percentages of false negatives and positives. ...Read more
Depends on the type: Of test. Blood tests measure actual levels of HCG and can detect 10 u. Urine tests are generally designed to read positive at a level of 25 u. If by 3 weeks you mean three weeks from the last menstrual period, it is likely too early to test. You should wait after a missed period to test for pregnancy. ...Read more
Only if Dr. wants it: Otherwise, a home urine test works just fine. Home pregnancy tests are very accurate and not affected by foods, herbs, common illnesses, sexually transmitted diseases, or medications. A correctly done urine test gives a reliable result 3 weeks after sex (3 weeks after when conception might have happened) or 1 week after missing a period. Home tests are cheap and sold everywhere. ...Read more
Ok: Most ivf clinics only measure HCG levels approximately 9 days after a day 5 embryo transfer. However, some clinics feel that the combination of HCG levels and Progesterone levels have a more predictive value of a good pregnancy than HCG levels alone. Personally, we only measure hcg. Hope this helps and good luck. ...Read more
Likely OK.: I don't know what your history is but if you had/have a herpes infection, you likely would have noticed skin lesions that could be irritating at some point in time. Many times there can be no symptoms but if you have this there would be some kind of outbreak at some point in time. The tests include tzank prep. Of scrapings that show giant cells, cultures are pos. In 48-96 h, elisa+pcr are great. ...Read more