Applied laboratory testing- 8,9,10

What do you think would have gone wrong? Why does the plasma turns pink in color on centrifugation?

• improper handling of sample

• sample collection

• both A & B

• none

Hemolysis affects which component of the blood?

• red blood cells

• white blood cells

• plasma

• platelets

What is the number one cause of chemistry specimens rejection?

• inexperienced technician

• wrong specimen techniques

• hemolysis

• insufficient sample volume

What is the second most frequent cause of specimen rejection?

• inexperienced technician

• wrong specimen techniques

• hemolysis

• insufficient sample volume

If red cells burst during specimen collection, the blood being tested is still the same as the blood circulating in the patient?

• true

• false

Choose the correct statement for the cause of the pinkish color of the liquid portion of the blood?

• Rbc rupture in sample

• hemoglobin

• Both A & B

• none

Complete the statement.

red blood cells contain----- as much potassium as the liquid portion of the blood.

• 23 times

• 20 times

• 25 times

• 27 times

Which of the following will be affected along with the potassium in a hemolysis sample?

• LDH

• AST & ALT

• Phosphorus & magnesium

• hemoglobin & hematocrit

• All of the above

What is the ideal size for the needle during sample collection?

• 20-22 gauge

• 15-19 gauge

• 25-27 gauge

• any of the above

What will be the result of using too small needles during sample collection?

• shear stress on the cell walls

• excess vacuum force

• both A & B

• none