Which of the following is normal in a patient regularly taking ...

[geodog55]

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]

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.

[geodog55]

Excellent

[recede]

Gracias!