About bhcg blood test, how much more accurate is it compared to the urine test?

Very. A serum (blood) pregnancy test (in certain labs) can detect a pregnancy as early as 7 days after fertilization, or 7 days before the expected menstrual period.

Related Questions

Which gives most accurate pg results, blood test or urine test? Took blood test 3weeks after unprotected sex and was -ve.

Blood. The median hCG concentration is higher in serum than in urine ; therefore, early in pregnancy, a serum pregnancy test may be positive while the urine pregnancy test is still negative. Read more...

Why do I have high glucose on my blood test, but not in my urine test?

How high ? Glucose can be reabsorbed by the kidneys until the blood level exceeds about 130 mg/dl. Once the blood glucose exceeds 130 glucose starts "spilling" out in the urine. Blood glucose can therefore be abnormally high, up to about 130 without any evidence of glucose in the urine. Once above that level typically it will show up in the urine as well. Read more...

Can someone have normal blood test and urine test and still have kidney issues?

Rarely. although it is uncommon one can have her reduced level of kidney function with normal blood and urine test. This is most common in older patients with decreased muscle mass and also with people of small stature or small frame. Their kidney function is better assessed by doing a 24 hour urine collection protein and creatinine clearance. Imaging test are also useful such as kidney ultrasound . Read more...

Blood test shows élévated bilirubin, urine test négative for bilirubin. Any explanation??

Unconjugated. Bilirubin exists in the blood in both the conjugated and Unconjugated forms. Only the conjugated can enter the urine. If you feel well, and this is new, you very likely have Gilbert's non-disease. Best wishes. Read more...

If you get a urine test two weeks after sex and a blood test the week after the urine and they are both negative can you trust the results?

Blood test, yes. If the last episode of sex was three weeks prior to the blood test and the test was negative, the result should be reliable. You may consult this site for early signs of pregnancy. http://www.webmd.com/baby/features/8-early-signs-of-pregnancy. Read more...

IUD since 21Jan. Everything ok til 18 May. Lower ab pain and went to gino and IUD in right position, blood test ok, urine test ok. What can be wrong?

Get checked. Pelvic pain is complex as there are several organs in the pelvis. The ovaries, fallopian tubes, uterus, cervix, bladder, appendix, intestines, colon and rectum can all be the source. Pelvic pain requires an examination to help organize the evaluation. The iud may or may not be related. Your pregnancy test is negative so you are not pregnant. Read more...

Normal blood sugar but have +1 in sugar un urine. I was fasting for more than 12 hrs when I got blood test then ate a lot before urine test. What is?

Some ideas. You may have mild glucose intolerance and spiked to a high level when you are. You may have Kidneys that lose glucose from Wilson's or any of dozens of other illnesses. It may an interfering substance or lab error. Read more...

Which test is more sensitive for detecting drugs: a blood test or a urine test?

Drug testing. The key issue for sensitivity is the method of detection, and the physiology of the drug in the body. Many drugs are metabolized or excreted through the urine and thus tend to be concentrated in urine samples that are tested by lateral flow immunoassay. Blood testing by Mass Spec is also highly sensitive but not as widely available. Read more...