Chapter 30 Quality Assurance

Question 1

________ is the ability of a test to detect disease

Answer 1

Sensitivity

Question 2

How do you calculate sensitivity

Answer 2

of true positive tests/ # of all positive diagnoses

Question 3

_________ is the ability of a test to identify normalcy

Answer 3

Specificity

Question 4

How do you calculate specificity

Answer 4

of true negative tests/# of all negative diagnoses

Question 5

________ _________ value is how often a positive study is correct

Answer 5

Positive predictive

Question 6

How do you calculate positive predictive value

Answer 6

of true positive tests/ # of all positive noninvasive studies

Question 7

________ ______ value is how often a negative study is correct

Answer 7

Negative predictive

Question 8

How do you calculate negative predictive value

Answer 8

of true negative tests/ # of all negative noninvasive studies

(True negatives + false negatives)

Question 9

________ is how good a test is

Answer 9

Accuracy

Question 10

How do you calculate accuracy

Answer 10

Total # of correct tests / total # of all studies

Question 11

Name 2 low level disinfection products commonly used

Answer 11

1) quarternary ammonium
2) n-alkyl
3) hydrogen peroxide (3%)

Question 12

______ ______ is not considered a disinfectant agent

Answer 12

Sterile saline