HardRespiratory MedicineIdiopathic Pulmonary Fibrosis (IPF)mrcp part 1ukmla
A 60-year-old woman presents with progressive breathlessness on exertion over 6 months. She is a lifelong non-smoker. Examination reveals fine bibasal end-inspiratory crackles. Chest X-ray shows bilateral reticular shadowing, most prominent at the bases. Pulmonary function tests show FEV1 75% predicted, FVC 60% predicted (FEV1/FVC ratio 1.25), and reduced gas transfer (DLCO 50% predicted). What is the most likely diagnosis?