 A 28-year-old lady complained of palpitation, fatigue and shortness of breath on climbingstairs for 6 months. She has been well without major medical problems previously. Reviewof history revealed that she started on vegetarian diet for weight reduction without followinga special instruction 3 years ago. Her body weight had in fact not changed and the appetiteremained the same. There had been no abdominal discomfort and the bowel movementsappeared normal. However, she noted heavy menstrual flow in the last 6 months. Onexamination, she was pale looking especially over conjunctivae, nail beds and palms. Herbody height was 160 cm, body weight 52 kg, blood pressure 136/70 mmHg, and pulse rate96/min. A venous hum was audible above the clavicles. A grade 2/6 systolic murmur wasaudible along the left parasternal border and a third heart sound was audible at the cardiacapex. The rest of physical examination was normal. What is your working diagnosis andhow are you going to work up and advise this lady? (20%)