10 Questions
Which tube is used for measuring blood glucose?
Sodium fluoride tube
What can cause falsely elevated results for glucose, potassium, and protein-based analytes?
Prolonged tourniquet
Which analyte is increased in a hemolyzed sample?
LDH
What should be done when drawing blood from an arm with an IV to avoid sample dilution?
Separate the sample immediately
What should be done to maintain accurate ammonia concentrations in a blood sample?
Immediately place the sample on ice after labeling
Which tube is used for HbA1C measurement?
EDTA tube
What should be done to avoid falsely decreased bilirubin levels?
Avoid exposure to light
What is the effect of prolonged tourniquet (hemoconcentration) on glucose results?
Falsely elevated glucose results
Which analyte is decreased in a hemolyzed sample?
Insulin
What should be done to maintain accurate ammonia concentrations in a blood sample?
Collect ammonia into EDTA or heparin tubes, separate immediately, and keep plasma on ice until analysis
Test your knowledge of clinical chemistry with this quiz presented by Haya Mansour for the SLLE Exam 202
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