What is the approach to fever in a patient with suspected neutropenia?

• A. Observation without antibiotics.
• B. Immediate empiric broad-spectrum IV antibiotics after obtaining cultures; cover Pseudomonas; adjust based on results and clinical status.
• C. Oral antibiotics at home.
• D. Wait 24 hours for culture results before starting therapy.

Answer: (B)

When a patient with fever is suspected to have neutropenia, the immediate approach is to treat as a potential serious bacterial infection with broad-spectrum IV antibiotics, started right away after obtaining cultures. The neutropenic state means the usual early warning signals and defensive responses are blunted, so infections can progress rapidly. Covering Pseudomonas and other common gram-negatives is essential because these organisms are a frequent and dangerous cause of sepsis in neutropenic patients.

Starting empiric IV antibiotics promptly aims to reduce mortality, and therapy is adjusted only after culture results and the patient’s clinical status are known. Typical initial choices are anti-pseudomonal beta-lactams (such as cefepime, piperacillin-tazobactam, or a carbapenem). If cultures identify a specific pathogen or if the patient remains unstable or has risk factors for resistant organisms, therapy can be escalated, de-escalated, or modified accordingly.

Delaying treatment, using oral therapy at home, or waiting for culture results before starting therapy would miss the window to prevent rapid deterioration in neutropenia, which is why they are not appropriate in this scenario.