Doctor insights on:
Examples are: colonoscopy for colon polyp or cancer; mammograms for breast lesions or cancer; psa a blood test that could indicate enlargement of cancerous prostate tissue; blood sugar or hemoglobin a!c for diabetes. Many think that scanning the whole body will pick up a cancer--in all likelihood, it will not. There also is no good blood test, yet, ...Read more
Drug test: This is a laboratory test which analyzes the concentration of marijuana products in the urine. Some consider this an invasion of privacy, but some industries require this as a screen for employment. This falls under the political issue of whether these substances are a serious problem or not. ...Read more
By not using drugs: Ethical and reputable physicians are not in the business of helping people "beat" drug tests. The sophistication of these tests have reached the point where they are difficult-to-impossible to beat, if the test is done by an experienced center which knows how people try to adulterate/substitute samples. If you have a drug problem, work on getting help rather than on not getting caught. Please!!!! ...Read more
Work up needed: At the very least it may suggest that you have been exposed to tuberculosis. You should visit with your doctor to have questions asked about whether or not you have TB symptoms to suggest infection such as do you have a cough? Unexplained night sweats? Unexplained weight loss, fevers or chills and fatigue? You also need to have a chest x ray performed - since organism is usually inhaled. ...Read moreSee 1 more doctor answer
Yes: Yes is correct! the blood test will turn positive at least several days earlier. ...Read more
Yes: There are 2 reasons for this kind of result: (1) a false positive, or (2) early infection before seroconversion. In someone at low risk for HIV without symptoms, another negative WB in 1 month means there's no infection. In someone at risk or with symptoms of acute infection, a viral load can be helpful. The new 4th generation antigen/antibody tests will eliminate this problem. ...Read more
After exposure, 3months HIV quali RNA test negative, not detected.4.5months HIV quick test and ELISA test negative.Are those tests all exclusive?
Can pregnancy blood test give false negative. 3 days late, urine test negative and blood test negative too?
Timing: It is possible that the urine pregnancy test detected HCG that was in the urine even as a pregnancy was failing (impending miscarriage) but by the time a blood test was done, the miscarriage had already occurred and the levels of the HCG pregnancy hormone were cleared. Alternatively, it could have just been a false (+) urine pregnancy test. ...Read more