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PHCH 667 Exam 1 Questions With Correct
Answers A+
Accuracy - Answer✔mean, how close to actual value
precision - Answer✔Standard deviation, how close values are to each other
the most important key parameters of a QUALITATIVE test - Answer✔reference values,
predictive values, specificity
the key parameters of a QUANTITATIVE test - Answer✔accuracy, reference values, sensitivity
The reference range most acceptable for quantitative tests - Answer✔within 95% of the mean
value
for quantitative tests, critical values typically are considered those that occur where? -
Answer✔so far outside the reference range as to portend mortality
for a qualitative test, sensitivity is determined by - Answer✔TP = TP/(TP + FN)
for a qualitative test, specificity is determined by - Answer✔TN = TN/(TN + FP)
predictive values for a negative qualitative test is best described as: - Answer✔NPV = TN/(TN +
FN)
predictive values for a positive qualitative test is best described as: - Answer✔PPV = TP/(TP +
FP)
Waiver of a test by Clinical Laboratory Improvement Amendments (CLIA) indicates that the test
is... - Answer✔so simple and accurate that likelihood of error is negligible and can be cleared by
the FDA for home use
which sample (specimen) has the longest window for being able to detect drug use? -
Answer✔hair
when does LH surge occur relative to ovulation? - Answer✔30-36 hours before ovulation
which of the following stimulates promotes fertility in both men and women? - Answer✔FSH
test
which OTC test can be used to detect pregnancy? - Answer✔Human Chorionic Gonadotropin
(HCG) test
PHCH 667 Exam 1 Questions With Correct
Answers A+
Accuracy - Answer✔mean, how close to actual value
precision - Answer✔Standard deviation, how close values are to each other
the most important key parameters of a QUALITATIVE test - Answer✔reference values,
predictive values, specificity
the key parameters of a QUANTITATIVE test - Answer✔accuracy, reference values, sensitivity
The reference range most acceptable for quantitative tests - Answer✔within 95% of the mean
value
for quantitative tests, critical values typically are considered those that occur where? -
Answer✔so far outside the reference range as to portend mortality
for a qualitative test, sensitivity is determined by - Answer✔TP = TP/(TP + FN)
for a qualitative test, specificity is determined by - Answer✔TN = TN/(TN + FP)
predictive values for a negative qualitative test is best described as: - Answer✔NPV = TN/(TN +
FN)
predictive values for a positive qualitative test is best described as: - Answer✔PPV = TP/(TP +
FP)
Waiver of a test by Clinical Laboratory Improvement Amendments (CLIA) indicates that the test
is... - Answer✔so simple and accurate that likelihood of error is negligible and can be cleared by
the FDA for home use
which sample (specimen) has the longest window for being able to detect drug use? -
Answer✔hair
when does LH surge occur relative to ovulation? - Answer✔30-36 hours before ovulation
which of the following stimulates promotes fertility in both men and women? - Answer✔FSH
test
which OTC test can be used to detect pregnancy? - Answer✔Human Chorionic Gonadotropin
(HCG) test
