Chapter 44 Lab

Question 1

Lipimic sample

Falsely prolonged or shortened?

Answer 1

Falsely prolonged bc of interference with light transmittance.

Question 2

Clotted or hemolysed sample inc or dec??

Answer 2

Falsely decrease. Bc of premature activation of coagulation factors & platelets that generate F VII and thrombin

Question 3

Abnormal clot formation

Answer 3

Falsely elevated. Instrument inability to detect an end point

Question 4

Instrument malfunction flags

Answer 4

Temp error
Photo-optics error
Mechanical movement error
Probe not aspirating