A client with leukemia undergoes a bone marrow biopsy. If thrombocytopenia is present, which nursing assessment is most important after the procedure?

• A. Observe the aspiration site for bleeding
• B. Monitor temperature every hour
• C. Assess for numbness in extremities
• D. Check capillary refill in toes

Answer: (A)

In thrombocytopenia, bleeding is the biggest immediate risk after an invasive procedure like a bone marrow biopsy because low platelets hinder clot formation. The priority nursing assessment is to observe the aspiration (puncture) site for any bleeding or oozing and to apply pressure as needed, since early detection and control of local bleeding can prevent a more serious hemorrhagic complication. While monitoring temperature, numbness, or distal capillary refill can be important in other contexts, they do not address the most immediate danger here—the risk of bleeding at the biopsy site.