Question

=Explain the difference between diagnostic specificity and sensitivity of an analytical method and how each is calculated

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Examine the Levy-Jennings chart and identify the QC program that occurred during controls runs 18-27 for level I cholesterol control.

Question=

	Calibration failure
	Random error
	Shift
	Trend

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Referring to the Levy-Jennings chart, which control run results would be rejected due to the 1_3s rule?

Question=

	Run #25
	Run #27
	Run #5
	Run #11

Question

The error occurring on February 19th is called:

Question

	random error
	a shift
	systematic error
	a trend

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Answer 1

In Medical Diagnosis,

Diagnostic Sensitivity is the ability of a test to correctly identify those with the Disease that is True Positive Rate,

Diagnostic Specificity is the ability of the Test to correctly identify those without the disease that is True negative rate,

For Example:

Disease

Positive Negative   
test. Positive True +ve. False +ve

Negative. False -ve. True -ve

caluculation: Senstivity : True +ve/true +ve plus false -ve

specificity : true negative / true negative plus false posit