Author Question: Which of the following is normal in a patient regularly taking aspirin? a. Bleeding time b. ... (Read 59 times)

geodog55 · **on:** Jun 25, 2018

Which of the following is normal in a patient regularly taking aspirin?

a. Bleeding time
b. Platelet cyclooxygenase function
c. Synthesis of thromboxane A2
d. Platelet count

Question 2

What types of hemostatic complications are found in patients with myeloproliferative disorders?

a. Hemorrhagic
b. Thrombotic
c. Abnormal platelet function
d. All of the above

diesoon · **Reply #1 on:** Jun 25, 2018

Answer to Question 1

ANS: D
Only the platelet count, of those evaluations listed, is normal in a patient who regularly takes aspirin. Aspirin acetylates cyclooxygenase, which is necessary for the synthesis of thromboxane A2. This prolongs the bleeding time.

Answer to Question 2

ANS: D
Patients with one of the chronic myeloproliferative disorders, such as polycythemia vera and essential thrombocythemia, may have abnormal platelet function; clinically, they may result in either abnormal bleeding or abnormal thrombosis. Some patients develop both, although this is rare.