Hematology Referral for Leukopenia with Monocytosis

Rationale for Referral

• Patients with unexplained cytopenias should be referred to hematology for evaluation, as stated by the Journal for ImmunoTherapy of Cancer, which recommends referral for patients with persistent cytopenia without obvious cause 1

Diagnostic Evaluation

• A complete blood count with differential is necessary to verify findings and assess all cell lines, according to Praxis Medical Insights 2
• Medication review is essential, as certain medications such as thiazide diuretics, diabetes medications, and drugs for gout can cause leukopenia, as reported by Arthritis care & research 3

Referral Timing

• The American College of Physicians likely recommends that unexplained cytopenias warrant prompt specialist assessment rather than watchful waiting, as delayed referral can lead to increased infection risk and other complications 1