Specimen Collection for Testing

Question 1

Which tubes are used for whole blood and why?

Answer 1

Sodium Fluoride (Gray Top)
Anti-Coagulant
8 hours at 25C
72 hours at 4C

Question 2

What is the most important specimen in the lab that is irretrievable?

Answer 2

Cerebrospinal Fluid (CSF)
Should not have anything else in it
4C or -20C

Question 3

How is Glucose preserved in Urine and how is it stored?

Answer 3

Adding 5 mL of Acetic Acid
4C

Question 4

What should happen if Plasma Glucose, measured at 1 hour, is >= 140 mg/dL?

Answer 4

3 hour OGTT

Question 5

What is the progression of time to Glucose Load for OGTT?

Answer 5

Fasting 95 mg/dL
1 hour 180 mg/dL
2 hour 155 mg/dL
3 hour 140 mg/dL