CASE 006 · Emergency Department · Advanced · 10–14 min
The Patient Whose Lungs Sound Perfectly Clear
· Patient arriving
44-year-old female — “It hurts to breathe and I almost fainted.”
6:18 PM — twelve days after knee surgery. Sharp right-sided chest pain since this afternoon; she nearly blacked out on the stairs.
BP 104/70HR 112RR 28SpO₂ 88% RATemp 99.0°F
You do not get the diagnosis. You get the patient. Reason your way there.
What SHOULD be happening?A — Assess Normal
Every drop of venous blood funnels through the lungsThe pulmonary circuit runs at low pressure, low resistanceThe right ventricle: thin-walled, built for easy workBlood meets air across the alveolar membraneVentilation and perfusion, matched breath by breath
Air is still reaching her alveoli — but blood no longer reaches the air. Ventilation without perfusion: the lungs sound perfect while they fail. Find what's blocking the pipe.
RUN IT · ACTIVEThis patient deteriorates while you work. Time matters.
MaldekChin cases are for healthcare education and clinical-reasoning training. They do not replace local protocols, faculty instruction, clinical supervision, or professional judgment.