Bleeding time is prolonged in a person who_______________?
Correct answer: A. Takes large quantities of aspirin
- A. Takes large quantities of aspirin
- B. Takes coumarin derivatives
- C. Lacks factor VIII
- D. Has liver disease
Explanation
Large doses of aspirin impair platelet cyclooxygenase and thromboxane A2 formation, reducing platelet aggregation and prolonging bleeding time. Coumarin and factor VIII deficiency prolong clotting times, especially PT or PTT, rather than primarily bleeding time.
Report an error
The more specific you are, the faster it gets fixed. A source beats an opinion.
Prefer email? [email protected]
Practise Blood and Immunity
81 free Blood and Immunity MCQs from Physiology, each with the correct answer and an explanation. Unlimited attempts, no account needed.
Discussion
Stuck on an option, or know a faster way to get there? Ask or explain it here.
No comments yet. Be the first to explain this one.
Exams that ask Physiology questions like this
Physiology is on 6 papers prepared for on TestUstad, and all of them draw the same bank, so this question is worth knowing for every one of them.
More Blood and Immunity questions
The best screening test for hemophilia is_____________?
Differential white blood cell counts in the laboratory are useful in the diagnosis of_______________?
Which of the following is not useful for coagulation______________?
Secondary granules of neutrophils contain______________?
Iron is stored in_______________?
AB blood group antigen are known as ________ factors?