Compared to the above urine test, a blood test for glucose is more accurate in avoiding both false positive and false negative results in identifying diabetic patients. If a blood test for glucose correctly identifies 90% of diabetic patients, but gives false-positive results for 12% of non-diabetic patients, then: the blood glucose test has improved sensitivity, but reduced specificity (compared to the urine test) the blood glucose test has improved neither sensitivity nor specificity (compared to the urine test)

Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:Elaine N. Marieb, Katja N. Hoehn
Chapter1: The Human Body: An Orientation
Section: Chapter Questions
Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...
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Compared to the above urine test, a blood test for glucose is more accurate in avoiding both false positive and false negative results in identifying diabetic patients. If a blood test for glucose correctly identifies 90% of diabetic patients, but gives false-positive results for 12% of non-diabetic patients, then:

  1. the blood glucose test has improved sensitivity, but reduced specificity (compared to the urine test)
  2. the blood glucose test has improved neither sensitivity nor specificity (compared to the urine test)
  3. the blood glucose test has reduced both sensitivity and specificity (compared to the urine test)
  4. the blood glucose test has improved both sensitivity and specificity (compared to the urine test)
  5. the blood glucose test has improved specificity, but reduced sensitivity (compared to the urine test) 

 

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