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Haematology

Multiple Myeloma — Diagnostic Workup

CRAB criteria, immunoglobulin / free light chains, bone marrow, imaging, induction therapy.

Source: BSH 2021; IMWG

Step 1 of ~6
info

Suspect — CRAB Features

Suspect in: bone pain (back), pathological fracture, hypercalcaemia (Ca ↑), AKI / unexplained renal failure, anaemia + ↑ ESR / plasma viscosity, recurrent infections (functional immunoparesis), neuropathy. CRAB criteria for symptomatic MM: hyperCalcaemia (>2.75), Renal impairment (creatinine >177 or eGFR <40), Anaemia (Hb <100 or 20 below LLN), Bone lesions (≥1 lytic lesion).

Related

Curated clinical cross-links plus same-class fallbacks.

Decision support only. Always apply local guidelines and clinical judgement.