Ch 9 Serology

Question 1

Serology

Answer 1

Study of fluid components in
the blood, especially
antibodies

Question 2

Sample

Answer 2

Fresh serum that has not been heated is usually recommended.
Storage—if testing is delayed
* Between 2°C and 8°C for up to 72 hours
* Frozen at –20°C or below
For certain tests, complement may need to be inactivated:
* Heat sample to 56°C for 30 minutes

Question 3

Volumetric

Answer 3

deliver only one volume

Question 4

Graduated

Answer 4

marked to allow for varying
amounts - Serological/Blowout

Question 5

Serial dilutions

Answer 5

determine the
titer, or strength, of an antibody

Question 6

Diagnostic Sensitivity

Answer 6

Proportion of people who with disease and positive test (true positive/true positive+false negative)100

Question 7

Diagnostic Specificity

Answer 7

Proportion of people with no disease and negative test (true negative/true negative+false positive)100

Question 8

Positive Predictive Value

Answer 8

Probability a positive test with disease (true positives/true positives+false positive)100

Question 9

Negative Predictive Value

Answer 9

probability a negative test with no disease (true negative/true negative+false negative)100