Doctor insights on:
Blood Test Down Syndrome Accuracy
Very: An analysis of the cellular chromosome complement is diagnostic but the clinical appearance is typical. ...Read more
Blood tests show inflammation, ELISA tested pos., WB tested Neg. Blood gas tested high, all other test normal, normal MRI. Swelling, dizzy, weak, numb?
Thick blood , high inflammation levels abnormal liver function in all 3 blood tests, test back pos for blood clot on lung after dye test, back neg?
This is serious: I trust the dye test was a pulmonary angiogram that demonstrated a pulmonary thromboembolus, and it has also been determined that you have hypercoagulable blood. This is a major problem that will require work with your primary care physician and probably long-term medical management -- more than healthtap can do. Hope you do not smoke. The "inflammation" & liver labs need to be addressed in time. ...Read more
9 positive preg tests followed instructions exact neg blood test 2 weeks ago just repeated the blood test whats the chances of 9 tests being wrong ?
Depends: How many days after the hpt was the blood test done? If it was two weeks after the positive hpt, it is could be that an early pregnancy was lost spontaneously. However, from what you described you did not have a period between the positive hpt and negative blood test. As I may have stated earlier, I would question the technique of doing the hpt. ...Read more
Penta test came back for having high risk of Down Syndrome. How accurate is this test? Will Panorama possibly be negative?
Could be: there may be a one-in-five chance of a false positive or even a one-in-two chance, depending on the mother’s age. If the panorama is negative, then it was likely that the penta test did not screen properly. ...Read more
Not very.: The triple screen will detect about 70% of mothers carrying babies with down syndrome, but it is only a screening test and does not diagnose down syndrome. There are many false positive tests ("abnormal" tests in women who are carrying babies that do not have down syndrome). A newer blood test for fetal dna in the mother's blood can actually diagnose down syndrome in women who are at higher risk. ...Read moreSee 1 more doctor answer
Is it possible to get instantaneous blood cholestrol readings doing strip tests similar to strip tests done for checking blood glucose levels?
Instant cholesterol : I am not aware of thatGet a more detailed answer ›
Very accurate: The elisa assay is one of the longest standing tests for antibodies to hiv. Positive results must be confirmed using western blot or other tests. If negative at 3 wks you should be retested at 3 and 6 months to be absolutely certain, but those latter tests are rarely positive if the 3 wk test was negative. Be safe. Have only protected sex until both partners assuredly negative, and monogamous. ...Read more
A test: for a certain autoimmune condition. it's important to understand that these blood tests need to be interpreted carefully in the context of your symptoms and exam findings. a positive test doesn't necessarily mean you have the condition. ...Read more
Is the HIV rapid blood test (finger prick) just as accurate as the standard "needle-in-arm" blood test?
Can exercising before blood test affect results? Fbc, lymphocyte flow studies, esr, crp, LFT, lipase, amylase? Can exercise before test make feel ill?
Exercise: As a boon to long term health, exercise has value. But normal ranges for almost all lab tests are established on resting individuals. Some values are known to go up (such as some liver functions) while others may vary depending on the intensity and degree of dehydration. Abnormals should be treated cautiously and perhaps repeated without the prior activity. ...Read more
HIV test negative 8 months with Architect™ analyzer and confirmed with western blot test. What are the chances it will turn positive?
Had risky sex event in 2003 about month ago had eia ab hiv blood test with reflex, rapid blood test ,4 oraquick tests all negative are tests accurate?
Be glad for health: I think I've answered you before, but it's fine to reassure you once again. Be grateful for good health and love wisely from now on. ...Read more
Endometrium present 18 days on period negative pregnancy test results via blood and urine tests. Possible causes?
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