This statement is true. The bleeding time test measures primary hemostasis, which relies heavily on normal platelet function. Aspirin and other NSAIDs (like ibuprofen) work by irreversibly inhibiting the enzyme cyclooxygenase (COX-1) in platelets. This prevents the formation of thromboxane A2, a potent chemical that promotes platelet aggregation and vasoconstriction. Even a single dose of aspirin can impair platelet function for the entire lifespan of the platelet (7-10 days). This significantly prolongs the bleeding time. For this reason, patients are always asked about recent medication use before a bleeding time is performed, and the test is often avoided in patients on these drugs as the result will not reflect their baseline platelet function.

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Zambia

• loveness Phiri – 1084 pts

• Visual Pathway Lesions
• Positive and Negative Symptoms
• Hallucinations and Delusions
• Antipsychotic Medications
• Emergency: Environmental Emergencies