Coagulation Studies Quiz

What is the primary goal of coagulation studies in ICU patients?

• To measure oxygen saturation

• To assess kidney function

• To diagnose and treat coagulopathies

• To monitor blood pressure levels

Which of the following is NOT a stage of the coagulation process?

• Constriction of blood vessels

• Formation of a temporary platelet plug

• Activation of the immune response

• Formation of a fibrin plug

What is the normal range for PTT in seconds?

• 10 to 20 seconds

• 90 to 100 seconds

• 60 to 70 seconds

• 30 to 40 seconds

Which factors are evaluated by the PTT and APTT tests?

• Factors 1, 2, 5, 8, 9, 10, 11, and 12

• Factors 5, 7, 11, and 13

• Factors 3, 4, 6, and 8

• Factors 2, 7, 9, and 10

What is the purpose of the INR in PT/INR tests?

• To measure blood glucose levels

• To assess kidney filtration rate

• To standardize results across different labs

• To evaluate liver function

Which medication can lead to falsely high PT results?

• Aspirin

• Erythromycin

• Penicillin

• Doxycycline

What is the normal range for fibrinogen levels in the blood?

• 100 to 200 mg/dL

• 200 to 400 mg/dL

• 600 to 800 mg/dL

• 400 to 600 mg/dL

Which test is used to measure the effective inhibition of factor 10a?

• ACT

• Anti-10a

• D-dimer

• PT/INR

What does a high D-dimer level indicate?

• Low blood sugar

• High blood pressure

• Liver dysfunction

• Abnormal clotting

Which test is specifically used to monitor high doses of heparin?

• PTT

• D-dimer

• ACT

• APTT