Hey! I'd love to hear your thoughts, send me a voice note.

When a patient is short of breath, what should you recognize first—and what changes your next decision?

In Episode 4 of The Clinical Next Step, we explore dyspnea through a cardiovascular lens: recognizing instability, assessing congestion and perfusion, and distinguishing heart failure from its dangerous mimics.

This episode focuses on the cardiovascular component of breathlessness, connecting assessment to investigation, treatment and disposition.

Topics include:

• Recognizing threatened breathing and impaired circulation.

• Using history and examination to distinguish cardiac causes from competing diagnoses.

• Understanding what ECG, chest imaging, natriuretic peptides and echocardiography can—and cannot—tell you.

• Approaching acute pulmonary edema, shock, valve emergencies and tamponade.

• Connecting heart-failure phenotype to continuing care after stabilization.

• Recognizing when improvement is insufficient for discharge and building a practical follow-up plan.

Throughout, we examine common reasoning traps: assuming wheeze means asthma, treating a preserved ejection fraction as proof against heart failure, or relying on a reassuring resting oxygen saturation alone.

For physicians and medical learners seeking practical, Canadian-focused clinical reasoning.

Recognize the pattern. Find the danger. Choose the next step.

The Clinical Next Step provides independent medical education. Content is for learning and does not replace individualized clinical assessment or current local guidance.