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Some time ago in a teaching hospital far, far away, a familiar IV bag sparked an unfamiliar question. Why does a fluid that contains lactate not worsen lactic acidosis? Why is it safe in septic shock — and even preferred? And why do its electrolytes matter more than most of us were ever taught?

In this episode of The Clinical Etymologist, we follow an emergency department encounter to unpack the physiology, history, and misconceptions behind Lactated Ringer’s.

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Welcome to Season 2

0.9% “Normal” Saline is one of the most commonly prescribed intravenous fluids in medicine, yet its name is one of the great misnomers of clinical practice.

In this episode, The Clinical Etymologist traces the laboratory origins of 0.9% sodium chloride and explains why it was never designed to replicate human plasma.

Through bedside teaching and clinical physiology, we explore how excess chloride alters acid–base balance and renal function.

The episode examines key evidence demonstrating the unintended potential harms of routine saline use and clarifies when “abnormal” normal saline is exactly the right choice—and when it is not.

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Some time ago in a teaching hospital far, far away… A new call shift had just been announced, and our clinical etymologist found himself preparing for another unpredictable day.

It felt fitting—almost poetic—that it was November 19th, the anniversary of the Gettysburg Address.

Little did the Clinical Etymologist know that this call would bring together etymology, Greek legend, and the physiology of hormonal clearance in the most unexpected way.

Medicine has a way of weaving history into the present, often when we least expect it.

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On a routine day call, two eager pre-clerks join the Clinical Etymologist in the ER, hoping to witness internal medicine in action.

What we get instead is a cramped cast room, a patient with right-sided weakness, and a half full urinal that almost fell. Not an ideal setting for teaching or learning.

This episode isn’t about rare diagnoses — it’s about staying steady when the answers aren’t clear. We explore stroke, vasculitis, and the power of physical exam.

But more than that, we explore what it means to teach — with integrity, in real time.

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A group of soon-to-be clerks join Dr. Kim in a high-stakes simulation to unravel the physiology, history, and bedside reasoning behind acute myocardial infarction.

Through dialogue, humor, and hypothesis-driven examination, they explore chest pain differentials, inferior STEMI nuances, vagal physiology, and the careful use of nitroglycerin.

The episode highlights rapid therapies—from aspirin’s buccal absorption to the early plaque-stabilizing power of statins.

A memorable twist arrives when the standardized patient outshines the class with the true origin of statins.

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Mr. Alexander Kole presents with alcohol intoxication. Odd lab value is noted that

hides more than it reveals. In this episode, Dr. Kim and his Padawan Layla explore

the clinical mystery of the osmolar gap — when numbers deceive and time

unmasks the truth.

Through humor, teaching, and reflection, this case shows how physiology, not

formulas, saves the day.

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Infectious mononucleosis reminds us that medicine often lives in the space between certainty and curiosity.

The tests help, but the story — the pattern of fatigue, fever, and swollen nodes — still matters most.

Every patient teaches us that diagnosis is not a checkbox, but a dialogue between cells, science, and clinical sense.

And sometimes, the most contagious thing in the room is curiosity itself.

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In this episode, Dr. Kim and his Padawan, Nina, rediscover the forgotten art of the respiratory exam—from tactile fremitus to percussion, from the German for 99 to toy boat.

Through etymology, history, and bedside humor, they explore how sound and touch connect anatomy, pathophysiology, and the human story behind every breath.