Haematology and Oncologymiddle twist
A 27-year-old woman of Greek background attends for pre-pregnancy advice. She feels well. A full blood count taken by her previous doctor shows: haemoglobin 108 g/L (115–165), mean cell volume 63 fL (80–100), red cell count 5.9 × 10¹²/L (3.8–5.8), red cell distribution width 12.5% (11.5–14.5), ferritin 88 µg/L (30–300). Haemoglobin electrophoresis shows haemoglobin A₂ 5.4% (2.0–3.3) and haemoglobin F 1.5%. Her partner is of Lebanese background and has never had a blood test.
Which one of the following is the most appropriate next step?