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are as follows: Table 3. 2x2 Table on New COVID-19 Ag test vs RT PCR RT PCR TOTAL COPIDZ Ag 27 30 69 70 ТOTAL 28 72 100 32. Which characteristic of the new test does this study evaluate? A Preclinical disease B. Predictive value C. Reliability D. Validity 33. What is the sensitivity of the new test? A. 88.70% C. 96.43% B. 91.90% D. 98.10% 34. What is the specificity of the new test? A 93.83% B. 94.83% C. 95.83% D. 96.83% 35. What is the diagnostic accuracy of the new test? A 95% B. 96% C. 97% D. 98% 36. What is the positive predictive value of the new test? A 90% B. 92% C. 94% D. 96% 37. What is the negative predictive value of the new test? A. 91.65% B. 93.12% C. 96.69% D. 98.57% RSITY

are as follows: Table 3. 2x2 Table on New COVID-19 Ag test vs RT PCR RT PCR TOTAL COPIDZ Ag 27 30 69 70 ТOTAL 28 72 100 32. Which characteristic of the new test does this study evaluate? A Preclinical disease B. Predictive value C. Reliability D. Validity 33. What is the sensitivity of the new test? A. 88.70% C. 96.43% B. 91.90% D. 98.10% 34. What is the specificity of the new test? A 93.83% B. 94.83% C. 95.83% D. 96.83% 35. What is the diagnostic accuracy of the new test? A 95% B. 96% C. 97% D. 98% 36. What is the positive predictive value of the new test? A 90% B. 92% C. 94% D. 96% 37. What is the negative predictive value of the new test? A. 91.65% B. 93.12% C. 96.69% D. 98.57% RSITY

Phlebotomy Essentials
Phlebotomy Essentials
6th Edition
ISBN:9781451194524
Author:Ruth McCall, Cathee M. Tankersley MT(ASCP)
Publisher:Ruth McCall, Cathee M. Tankersley MT(ASCP)
Chapter1: Phlebotomy: Past And Present And The Healthcare Setting
Section: Chapter Questions
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Researchers develop a new rapid diagnostic test for COVID-19, the "COPIDZ Ag" test. They administer the test to 100 consecutive people who has the following symptoms: fever, cough, ageusia, anosmia and diarrhea. In parallel, they determine the presence of actual COVID-19 infection using real-time polymerase chain reaction (PCR), the gold standard method for viral detection, in the same 100 individuals. The researchers compare the results of the new diagnostic test with the presence of actual COVID-19 infection determined by PCR. Results are as follows: Table 3. 2x2 Table on New COVID-19 Ag test vs RT PCR RT PCR ТОTAL COPIDZ Ag 27 3 30 69 70 TOTAL 28 72 100 32. Which characteristic of the new test does this study evaluate? A. Preclinical disease B. Predictive value C. Reliability D. Validity 33. What is the sensitivity of the new test? A. 88.70% B. 91.90% C. 96.43% D. 98.10% 34. What is the specificity of the new test? A. 93.83% B. 94.83% C. 95.83% D. 96.83% 35. What is the diagnostic accuracy of the new test? A. 95% B. 96% C. 97% D. 98% 36. What is the positive predictive value of the new test? A. 90% В. 92% C. 94% D. 96% 37. What is the negative predictive value of the new test? A. 91.65% В. 93.12% C. 96.69% D. 98.57% RSITY
Transcribed Image Text:Researchers develop a new rapid diagnostic test for COVID-19, the "COPIDZ Ag" test. They administer the test to 100 consecutive people who has the following symptoms: fever, cough, ageusia, anosmia and diarrhea. In parallel, they determine the presence of actual COVID-19 infection using real-time polymerase chain reaction (PCR), the gold standard method for viral detection, in the same 100 individuals. The researchers compare the results of the new diagnostic test with the presence of actual COVID-19 infection determined by PCR. Results are as follows: Table 3. 2x2 Table on New COVID-19 Ag test vs RT PCR RT PCR ТОTAL COPIDZ Ag 27 3 30 69 70 TOTAL 28 72 100 32. Which characteristic of the new test does this study evaluate? A. Preclinical disease B. Predictive value C. Reliability D. Validity 33. What is the sensitivity of the new test? A. 88.70% B. 91.90% C. 96.43% D. 98.10% 34. What is the specificity of the new test? A. 93.83% B. 94.83% C. 95.83% D. 96.83% 35. What is the diagnostic accuracy of the new test? A. 95% B. 96% C. 97% D. 98% 36. What is the positive predictive value of the new test? A. 90% В. 92% C. 94% D. 96% 37. What is the negative predictive value of the new test? A. 91.65% В. 93.12% C. 96.69% D. 98.57% RSITY
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