Medical Laboratory Quiz

What is the phase that starts with the physician's test order and ends with the analysis?

• Sampling Phase

• Postanalytical Phase

• Analytical Phase

• Preanalytical Phase

Which error code is associated with a hemolyzed sample in the preanalytical phase?

• L16199

• L17622

• L18309

• L1054

What is the recommended waiting time for red-capped serum tubes after blood collection?

• 30 minutes

• 60 minutes

• 10 minutes

• 45 minutes

Which anticoagulant is not suitable for the analysis of ALP and CK activity where Mg acts as a cofactor?

• Citrate

• Heparin

• EDTA

• Sodium Fluoride

What is the most suitable anticoagulant for hematological tests due to its binding of Ca and Mg?

• Citrate

• Sodium Fluoride

• EDTA

• Heparin

Which hormone rises shortly after falling asleep according to the circadian rhythm changes?

• Renin

• Growth Hormone

• TSH

• Cortisol

What is the effect of nicotine on the adrenal medulla?

• Inhibits

• Stimulates

• No effect

• Decreases activity

What is the main factor contributing to cyclic changes in body fluids throughout the day?

• Sleep and wakefulness

• Nutrition

• Stress

• Daylight

What is the effect of heavy exercise on CK activity?

• Decreases by 50%

• No effect

• Increases 2-fold

• Increases 10-fold

Which test results are recorded on HBYS in Biochemistry Laboratories for panic value reporting?

• Biochemistry

• All of the above

• Coagulation

• Hematology