Specimen Collection/handling
Which test requires the blood sample to be chilled immediately after collection and delivered to the laboratory on ice?
ammonia
Which test is used to diagnose hypoglycemia?
5 hour oral GTT
What is the most important factor in preventing contamination of a blood culture?
Aseptic collection technique
What conditions might be treated with a therapeutic phlebotomy?
Hemochromatosis (a hereditary disorder in which iron salts are deposited in the tissues, leading to liver damage, diabetes mellitus, and bronze discoloration of the skin)
After 12 hours of fasting and abstention from strenuous exercise, the body is said to be in what state?
Basal
For which test does a blood sample need to be collected in a prewarmed tube and kept at body temperature until delivered to the laboratory?
Cold agglutinins
What test is used to diagnose gestational diabetes?
1 hour oral GTT
What does the term anaerobic mean?
Without oxygen
Which of the following therapeutic drugs is typically drawn in timed pairs known as peaks and troughs?
Vancomycin
In an oral GTT, how much time may the patient take to drink the glucose solution?
5 mins
What is the most important factor in preventing contamination of a blood culture?
Aseptic collection technique
What does the term “hyperglycemia” mean?
Increased blood glucose
What is the approximate volume of a unit of donor blood?
450 mL
For some therapeutic drugs with short half-lives, one of the specimens is drawn just before the next dose of medication. What is this specimen called?
Trough
What does the abbreviation FUO mean?
Fever of unknown origin
All of the following can alter lactic acid levels except what?
Chilling the specimen after collection
A test requisition lists the glucose specimen to be collected as a 2-hour postprandial. When should it be collected?
Two hours after the patient eats
Use of what blood culture collection method would require you to draw the aerobic tube before the anaerobic tube?
Butterfly collection
Most specimens collected for therapeutic drug monitoring are collected in a tube with what color stopper?
Red
What is the common name for antibodies formed in response to an infection with Mycoplasma pneumoniae?
Cold agglutinins
When implementing Chain of Custody protocols, when does the chain begin?
When the patient is identified.
When does the timing of an oral glucose tolerance test begin?
After the patient has finished drinking the glucose solution
What is the term for a blood donation that is intended to be used later on the donor?
autologous donation
The time it takes for half of the drug to be metabolized is referred to as what?
Half-life
What organizations set guidelines for blood donor collection procedures for blood banks?
AABB and FDA