Exam 3 Chapter 9

Question 1

What is serum

Answer 1

the liquid potion of blood minus coagulation factors, it is the most used sample in serology

Question 2

Why are patient samples diluted

Answer 2

to make a solution less concentrated

Question 3

How is complement inactivated

Answer 3

by heating the sample of serum for 30 minutes

Question 4

Types of pipettes

Answer 4

volumetric pipettes-used to prepare reagents/controls, labeled TD-to deliver

graduated pipettes-has marks all along its length, labeled TC- to contain
Serological (graduated) pipette- has marks all along its length down to the tip labeled TC

Micropipette- delivery of small volumes, they deliver volumes in microliters

Question 5

What do TC and TD stand for

Answer 5

to contain, to deliver

Question 6

What do acute and convalescent samples mean

Answer 6

an acute sample means that the patient is still having symptoms a convalescent sample means the patient is recovering

Question 7

What is a diagnostic antibody titer

Answer 7

a clinically significant infection indicated by a 4x rise in antibody titer from previous measurement

Question 8

What is plasma

Answer 8

contains all the clotting factors and fibrinogen

Question 9

How is serum stored

Answer 9

between 2 degrees Celsius and 8 degrees Celsius for up to 72 hours