InvestigationsPotential resultsClinical management plan: abnormal results
Dietary assessmentInadequate dietary intake
  1. Dietary advice and consider oral nutritional supplements.

  2. Refer for specialist dietetic assessment and advice.

Symptom assessmentNo other GI symptoms present
  1. Discuss with supervising clinician or

  2. Request OGD, colonoscopy, CT chest, abdomen and pelvis.

If GI symptoms presentFollow algorithm.
Routine and additional blood screen (pages 2–3) and myeloma screenAbnormal results, eg, thyrotoxicosis, new onset diabetes mellitus, Addison's diseaseFollow treatment of abnormal results (pages 2–3).
CT chest abdomen and pelvis
Organic cause (eg, infection, inflammation, neoplastic)Discuss with supervising clinician within 24 h.
No organic cause identifiedRefer to dietitian and review regularly.
Consider psychological causes, eg, depression/eating disorder.
Refer to appropriate cancer MDT for consideration of PET scan.
  • GI, gastrointestinal; OGD, oesophago-gastroduodenoscopy; PET, position emission tomography.