Which set of antipsychotics is listed as having thrombocytopenia associations?

Which set of antipsychotics is listed as having thrombocytopenia associations?

• A. Asenapine, clozapine, olanzapine, quetiapine, risperidone, ziprasidone
• B. Clozapine only
• C. Haloperidol and chlorpromazine
• D. Aripiprazole and lurasidone

Answer: (A)

Thrombocytopenia can occur with several antipsychotics, not just the one most famous for blood problems. While clozapine is well known for hematologic risks, including effects on platelets, other atypical antipsychotics have also been reported to be associated with low platelet counts in case reports or signal data. The set that includes asenapine, clozapine, olanzapine, quetiapine, risperidone, and ziprasidone reflects multiple agents with such associations, which is why it’s the best fit for this question. In clinical terms, a drop in platelets can lead to easy bruising, prolonged bleeding, or petechiae. If a patient on these medications shows bleeding symptoms, a complete blood count with platelets should be checked and the suspected drug should be reassessed, with discontinuation considered if thrombocytopenia is confirmed. Clozapine, in particular, has regular hematologic monitoring due to its well-established risk profile, though the other listed drugs also carry a possible, albeit less common, risk.

Thrombocytopenia can occur with several antipsychotics, not just the one most famous for blood problems. While clozapine is well known for hematologic risks, including effects on platelets, other atypical antipsychotics have also been reported to be associated with low platelet counts in case reports or signal data. The set that includes asenapine, clozapine, olanzapine, quetiapine, risperidone, and ziprasidone reflects multiple agents with such associations, which is why it’s the best fit for this question.

In clinical terms, a drop in platelets can lead to easy bruising, prolonged bleeding, or petechiae. If a patient on these medications shows bleeding symptoms, a complete blood count with platelets should be checked and the suspected drug should be reassessed, with discontinuation considered if thrombocytopenia is confirmed. Clozapine, in particular, has regular hematologic monitoring due to its well-established risk profile, though the other listed drugs also carry a possible, albeit less common, risk.