Serum Sample and Test Measures

Serum Sample and Test Measures

University

21 Qs

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Serum Sample and Test Measures

Serum Sample and Test Measures

Assessment

Quiz

Science

University

Practice Problem

Medium

Created by

Rachel Randall

Used 2+ times

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21 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

If a serum sample cannot be tested for 4 hours, it should be:

Kept at room temperature

Refrigerated at 2-8°C

Frozen at -20°C

Discarded and recollected

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

The sensitivity of a test measures:

True negatives

True positives

False positives

False negatives

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What must be done if complement interferes with a test?

Freeze and thaw before testing

Heat at 56°C for 30 min

Add anticoagulant

Centrifuge at 3,000 g

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

A hemolyzed serum sample:

Is normal and acceptable

May interfere with testing

Indicates bacterial contamination

Is required for immunoassays

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

The law of mass action states:

Antibody and antigen are always bound

Free and bound reactants are in equilibrium

Antibody binding sites equal antigen binding sites

Free reactants bind randomly

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

The best sensitivity in an assay is associated with:

K = 1

K = 2

K = 4

K = 9

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Passive agglutination occurs when:

Antigen is naturally found on a particle

Antigen is artificially bound to particles

Antibody is attached to particles

The reaction is competitive

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