Platelet Laboratory Tests Quiz

What is the normal platelet count range?

• 250-550*10^9/L

• 150-450*10^9/L

• 100-400*10^9/L

• 200-500*10^9/L

What is the principle of the Bleeding Time test?

• The time it takes for a cut to heal completely

• The time it takes for a blood clot to form

• The time it takes for a standard wound to stop bleeding

• The time it takes for a bruise to disappear

What is the principle of the Aspirin Tolerance Test?

• To distinguish functionally abnormal platelets from normal platelets

• To measure the patient's tolerance to pain

• To distinguish between different types of aspirin

• To measure the patient's tolerance to aspirin

What is the principle of the Glass Bead Retention Time test?

• To measure the patient's platelet adhesiveness

• To measure the patient's blood pressure

• To measure the patient's platelet count

• To measure the patient's tolerance to glass beads

What is the principle of Platelet Aggregometry using PRP?

• To induce change and aggregation of platelets in a stirred suspension of platelet-rich-plasma

• To measure the patient's tolerance to aggregation

• To measure the patient's platelet count

• To measure the patient's blood pressure

What is the primary phase aggregation in Platelet Aggregometry using PRP?

• The immediate response of the platelets to the aggregation reagent

• The final response of the platelets to the aggregation reagent

• The secondary response of the platelets to the aggregation reagent

• The initial response of the platelets to the aggregation reagent

What is the principle of Platelet Lumiaggregometry?

• To measure the patient's platelet count

• To measure the patient's tolerance to luminescence

• To generate cold chemiluminescence proportional to the ATP concentration

• To measure the patient's blood pressure

What is the principle of Clot Retraction test?

• To measure the patient's tolerance to clot retraction

• To measure the patient's capillary integrity

• To measure the patient's clotting time

• To measure the patient's platelet count

What is the normal time range for clot retraction?

• 6-8 hours

• 8-10 hours

• 4-6 hours

• 2-4 hours

What is the principle of the Tourniquet Test?

• To measure the patient's blood pressure

• To measure the patient's capillary fragility

• To measure the patient's platelet count

• To measure the patient's tolerance to tourniquets