Contributor: Taylor Lynch, MD Educational Pearls:  CPR is an important life-saving measure designed for anyone to perform. Chest compressions works by two mechanisms:  Cardiac pump: Direct squeezing of the...

Contributor: Meghan Hurley, MD Educational Pearls: What is hypokalemia? Hypokalemia is when the measured blood level of potassium falls below 3.5 mEq/L (normal 3.5 – 5.2 mEq/L).  Can generally...

Contributor: Meghan Hurley, MD Educational Pearls: What is hyperkalemia? Hyperkalemia is when the measured blood level of potassium reaches above 5.2 – 5.5 mEq/L (normal 3.5 – 5.2 mEq/L). ...

Contributor; Aaron Lessen, MD Educational Pearls: A 2026 survey asked Canadian emergency medicine (EM) physicians about their eating and drinking habits while on shift. Among 527 respondents, 35% reported...