Which monitoring approach is recommended for patients on clozapine?

• A. Periodic liver function tests only
• B. Routine hematologic monitoring
• C. Regular neurological exams only
• D. No monitoring is necessary

Answer: (B)

Clozapine carries a significant risk of neutropenia and agranulocytosis, so routine hematologic monitoring is essential. This means regular complete blood counts with differential to watch the absolute neutrophil count. The goal is to detect drops early, because neutropenia can progress rapidly and lead to serious infections. In practice, monitoring is typically more intensive at the start (often weekly for the first six months), then less frequent as stability is confirmed, with ongoing checks thereafter. If the neutrophil count falls below established thresholds, treatment is paused or adjusted according to protocol until counts recover.

Periodic liver function tests or regular neurological exams do not address the primary safety concern with clozapine, and no monitoring would leave a dangerous risk undetected.