A 41-year-old woman has been stable on clozapine for 18 months but presents with fever, painful swallowing and malaise. Her temperature is 38.5°C and her absolute neutrophil count is 0.4 × 10^9/L (1.5–7.5); the white-cell count was normal one month ago. She has no focal chest findings and has not started another medicine. Which one of the following is the most appropriate immediate management?
Keep going — a set of ten like this one, one at a time.
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