Summary of findings
Report positives first, then the relevant negatives, then pull them together into the system most likely involved.
General examination of my patient revealed a young man who is chronically ill-looking, with conjunctival pallor and bilateral pitting ankle oedema up to the mid-shins. A haemodialysis catheter is in place in the right femoral vein. He is not jaundiced or cyanosed, is afebrile, and has no lymphadenopathy or finger clubbing. My assessment is chronic kidney disease on haemodialysis.
A sensible order: general appearance → hands and nails → pulse → face, eyes and mouth → neck and lymph nodes → oedema → anthropometry → urinalysis.
Differential diagnoses
| Finding | Think of |
|---|---|
| Pallor with oedema | Chronic kidney disease, nephrotic syndrome, chronic liver disease, heart failure, malnutrition |
| Generalised lymphadenopathy | Tuberculosis, HIV, lymphoma, chronic lymphocytic leukaemia |
| Finger clubbing | Lung cancer, bronchiectasis, empyema, lung fibrosis, cyanotic heart disease, endocarditis, liver cirrhosis, inflammatory bowel disease, thyroid acropachy |
| Koilonychia (spoon nails) | Iron deficiency |
| Leukonychia (white nails) | Low albumin — liver disease, nephrotic syndrome |
| Half-and-half nails | Chronic kidney disease |
| Jaundice with pallor | Haemolysis (sickle cell disease), liver disease |
| Central cyanosis | Lung disease, right-to-left cardiac shunt |
| Wasting with oral thrush | Advanced HIV |
For a patient on dialysis, see Chronic kidney disease on haemodialysis.
Investigations
- Urinalysis — protein, blood, glucose; a simple test that carries a mark
- Full blood count and film — anaemia and its type
- Urea, electrolytes and creatinine; liver function with albumin
- Glucose, HIV test with consent
- Imaging and specific tests directed by the system identified
Treatment
- Treat the underlying condition found
- Correct nutrition and anaemia appropriately — find the cause before giving blood or iron
- Counsel on the diagnosis and plan
- Refer to the relevant specialist team
Examiner questions
References
- Longo DL, Fauci AS, Kasper DL, Hauser SL, Jameson JL, Loscalzo J, et al., eds. Harrison's Principles of Internal Medicine. 22nd ed. New York: McGraw Hill; 2025.