Table 1

 The patient’s haematological and biochemical parameters at presentation

ParameterResultLaboratory reference range
G6PD, glucose-6-phosphate dehydrogenase; LDH, lactate dehydrogenase; MCV, mean cell volume.
Haemoglobin55 g/l115–151 g/l
MCV105 fl84–98 fl
Reticulocyte count133×109/l13–98×109/l
Platelet count205×109/l147–397 109/l
White cell count7.8×109/l5.1–11.4×109/l
MonospotNegative
G6PD assay7.2 U/g Hb4.6–13.5 U/g Hb
Urine haemosiderinNegative
Red cell folate597 μg/l215−650 μg/l
Vitamin B12475 ng/l125–600 ng/l
Bilirubin48 μmol/l<17 μmol/l
LDH2197 U/l50–450 U/l
C reactive protein16 mg/l<5 mg/l