Electrolytes - Hypophosphatemia and Hyperphosphatemia
Surgery Shelf Prep! · Scrub Battle
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Show Notes
Phosphorus doesn’t always get the spotlight—but on test day, it’s a game changer. From energy metabolism to bone health, imbalances can wreck patients and trip you up on the shelf.
In this episode, Chris and Mars break down the most high-yield phosphorus scenarios you need to master: Refeeding Syndrome, DKA after insulin therapy, Hungry Bone Syndrome, antacid and binder use, Fanconi syndrome, CKD-related hyperphosphatemia, tumor lysis syndrome, and post-thyroidectomy hypoparathyroidism. You’ll learn the classic presentations, the underlying pathophysiology, and the treatment pearls that show up again and again.
We cover:
- Why refeeding syndrome causes a dangerous phosphate crash
- How insulin in DKA unmasks total body phosphate depletion
- The difference between Hungry Bone Syndrome and surgical hypoparathyroidism
- Key pitfalls of antacids and phosphate binders
- What to do when CKD or tumor lysis drives phosphate dangerously high
Perfect for med students gearing up for the surgery shelf—this one locks in both the physiology and the test-day clues.