Laboratory monitoring of coagulation and anticoagulation includes testing of platelet function. Which of the following statements is/are true concerning tests of platelet function?
A. A platelet count of 50,000/µL or more usually ensures hemostasis
B. Bleeding time assays assessibility of platelets to perform hemostatic plugs and is determined from a sample of blood drawn in an EDTA coated test tube
C. Aspirin therapy can be associated with a bleeding time in the range of 8–15 minutes
D. Tests of platelet aggregation should be part of the standard preoperative evaluation of patients using aspirin
Answer:A
Laboratory monitoring of coagulation and anticoagulation includes testing of platelet function. Which of the following statements is/are true concerning tests of platelet function?
A. A platelet count of 50,000/µL or more usually ensures hemostasis B. Bleeding time assays assessibility of platelets to perform hemostatic plugs and is determined from a sample of blood drawn in an EDTA coated test tube C. Aspirin therapy can be associated with a bleeding time in the range of 8–15 minutes D. Tests of platelet aggregation should be part of the standard preoperative evaluation of patients using aspirin