Emergencies & Special Topics

Angioedema: Allergic, ACE-Inhibitor & Hereditary

A patient's lips and tongue balloon up, threatening to close their airway — and the standard allergy drugs do nothing. Why? Because not all swelling is an allergy. Some is driven by a completely different molecule, one you already met blocking a blood-pressure drug's enzyme. Get the cause wrong and you'll give the wrong antidote while the airway closes. This is a life-or-death exercise in telling two look-alike emergencies apart.

Cardiovascular Drugs in Pregnancy: The Safe Lists

The moment a woman becomes pregnant, some of cardiology's best drugs turn into hazards — the very ACE inhibitors, warfarin, and statins that protect her heart can harm her baby. Yet high blood pressure, clots, and arrhythmias still need treating. So an entirely separate rulebook applies, built on one principle: what crosses the placenta, and what the fetus can't tolerate. Here are the drugs you can and can't use, and why.

Cardiac Arrest & the Drugs of ACLS

When a heart stops, the drugs matter less than most people think — good chest compressions and a well-timed shock save far more lives than any injection. But a small, precise set of medicines supports the resuscitation, and they're old friends from across this whole course: adrenaline, amiodarone, atropine. Here's what actually goes into a 'code blue,' when each drug is given, and why the syringe is never the star.