6-2 Blood Collection and Processing

Front

What does the red/gray stopper tube contain?

Back

A polymer gel and a silica activator.

Front

Why must blood be free of hemolysis for chemistry analysis?

Back

Hemolysis can interfere with test results, leading to inaccurate measurements.

Front

Which stopper color is associated with no additive?

Back

Red.

Front

What is the CLSI order of draw?

Back

The recommended sequence for drawing blood samples to avoid contamination.

Front

What contributes to preanalytical error in blood collection?

Back

Mistakes occurring during blood draw.

Front

What is the purpose of a silica activator in blood collection tubes?

Back

To promote clotting of the blood sample.

Front

What is hemolysis?

Back

The breakdown of red blood cells, which can affect laboratory test results.

Front

What is the function of anticoagulants in blood collection tubes?

Back

To prevent blood from clotting.

Front

What color stopper is typically used for serum tests?

Back

Red or red/gray (tiger) stopper.

Front

What is the significance of the order of draw in blood collection?

Back

To prevent cross-contamination of additives from one tube to another.