Overview
Clinical Meaning
Rare high risk conditions carry disproportionately high morbidity/mortality if not recognized promptly.
CNPLE
CNPLE
Rare high-risk conditions carry disproportionately high morbidity/mortality if not recognized promptly. Pheochromocytoma: catecholamine-secreting tumor (usually adrenal) causing episodic hypertensive crises with the 5 Ps (Pressure, Pain/headache, Perspiration, Palpitations, Pallor). Alpha-blockade BEFORE beta-blockade is critical. Malignant hyperthermia: pharmacogenetic disorder triggered by succinylcholine or volatile anesthetics in RYR1 mutation carriers, causing uncontrolled calcium release, rigidity, hyperthermia, rhabdomyolysis. Treatment: dantrolene IV. Addisonian crisis: acute adrenal insufficiency with hypotension refractory to fluids, hyponatremia, hyperkalemia, hypoglycemia. Treatment: IV hydrocortisone 100 mg STAT. Thyroid storm: decompensated thyrotoxicosis with fever, tachycardia, altered mental status. Treatment sequence: PTU first → iodine 1 hour later (PTU must block synthesis before iodine blocks release).
Unlock full lesson + practice questions
4 more sections with scenarios, priorities, and review drills.
Final rapid review before practice
Next study step
Finish the lesson first, then choose a focused activity to apply what you just reviewed.
Continue studying
Sign in to save progress on this lesson.
Unlock the interactive lesson quiz with a plan that includes this CNPLE pathway. You can still explore topic-filtered questions from the bank hubs below.