i-Human Case Study 2025/2026: Fatigue in a 28-Year-Old with Cough – Mycoplasma Pneumonia & Post-Infection Management

A comprehensive i-Human case study for 2025/2026 on a 28-year-old male presenting with three weeks of persistent cough, debilitating fatigue, exertional dyspnea, and night sweats following an upper respiratory infection. This case explores the diagnostic challenge of distinguishing atypical pneumonia (Mycoplasma pneumoniae) from post-viral syndromes, asthma exacerbation, and other subacute respiratory conditions. Covers systematic history taking using OLD-CARTS, physical examination findings (crackles, wheezing, exertional desaturation), diagnostic testing (CRP, procalcitonin, Mycoplasma PCR, chest X-ray), and evidence-based management including doxycycline therapy, bronchodilator use, and post-infectious fatigue management. Ideal for advanced practice nursing, medical students, and primary care clinicians preparing for i-Human simulations, clinical reasoning exercises, and NRNP coursework.