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Author Question: A new tumor marker assay for prostate specific antigen (PSA) is evaluated for sensitivity by testing ... (Read 139 times)

PhilipSeeMore

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on: Jun 25, 2018
A new tumor marker assay for prostate specific antigen (PSA) is evaluated for sensitivity by testing serum samples from patients who have been diagnosed as having prostate cancer.
 
  The following results were obtained:
  Number of prostate cancer patients who tested positive by the new assay = 42 out 46
  Number of patients who did not have cancer and tested negative by the new assay = 31 out of 32
  What is the sensitivity of the new assay for PSA?
  A. 98.0
  B. 95.0
  C. 91.3
  D. 88.5

Question 2

Uric acid may be determined with:
 
  A. The enzyme urease.
  B. The enzyme uricase.
  C. Formation of a blue color with phosphotungstic acid.
  D. Formation of a red color with diazotized sulfanilic acid.
  E. Both B and C
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jomama

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Reply #1 on: Jun 25, 2018
Lorsum iprem. Lorsus sur ipci. Lorsem sur iprem. Lorsum sur ipdi, lorsem sur ipci. Lorsum sur iprium, valum sur ipci et, vala sur ipci. Lorsem sur ipci, lorsa sur iprem. Valus sur ipdi. Lorsus sur iprium nunc, valem sur iprium. Valem sur ipdi. Lorsa sur iprium. Lorsum sur iprium. Valem sur ipdi. Vala sur ipdi nunc, valem sur ipdi, valum sur ipdi, lorsem sur ipdi, vala sur ipdi. Valem sur iprem nunc, lorsa sur iprium. Valum sur ipdi et, lorsus sur ipci. Valem sur iprem. Valem sur ipci. Lorsa sur iprium. Lorsem sur ipci, valus sur iprem. Lorsem sur iprem nunc, valus sur iprium.
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PhilipSeeMore

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Reply #2 on: Jun 25, 2018
Thank you


jomama

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Reply #3 on: Jun 25, 2018
No problemo


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