•Temperature 37°C, pulse 120 bpm, BP 100/60mmHg, SaO₂ 98-100% on RA.

•Hydration is satisfactory.

•Examination of the hands reveals no clubbing and normal-appearing palmar creases.

•Head and neck examination is unremarkable.

•Cardiovascular: HS dual, no murmur.

•His chest is clear on auscultation.

•Abdominal examination reveals a soft, non-tender abdomen.

•PR melaena.

•No signs of oedema.

Investigations

•CBC:

–WBC 9.6 x 10⁹/L;

–haemoglobin 6g/dL;

–platelets 265 x 10⁹/L.

•Pre-transfusion blood results:

–MCV 74fL;

–serum iron 5μmol/L;

–TIBC 80μmol/L;

–ferritin 25pmol/L;

–blood film shows hypochromic red blood cells with poikilocytosis and anisocytosis.

•Post-transfusion haemoglobin level is 9.5g/dL.