Electrolytes Simplified

It's 3 a.m. on the floor, the chemistry just resulted, and the patient with cirrhosis, heart failure, and stage 4 CKD has a sodium of 122, a potassium of 5.7, and a bicarbonate of 16 — and you have minutes, not hours, to decide.
Apply the wrong correction rate and you've caused osmotic demyelination; reach for normal saline reflexively and you've worsened the hyperchloremic acidosis; treat the laboratory number without the underlying physiology and you've made a complicated patient sicker.
This book rewires how you reason at the bedside, replacing pattern matching with a structured analytical framework that produces consistent diagnostic accuracy across every electrolyte and acid-base presentation you will encounter.
Inside this book:
• Four-step ABG mastery — interpret any arterial blood gas in under two minutes using the primary disturbance, expected compensation, anion gap, and delta-delta sequence
• Osmotic demyelination prevention — calibrate hyponatremia correction with explicit 24-hour rate ceilings that protect chronic patients from iatrogenic neurological injury
• Hyperkalemia in eight minutes — execute the three-pronged emergency protocol of calcium membrane stabilization, intracellular shift, and definitive removal in the correct sequence
• Refractory potassium decoded — recognize hypomagnesemia as the hidden driver of every potassium and calcium repletion failure that resists standard therapy
• Salicylate toxicity caught at bedside — identify the pathognomonic mixed acid-base pattern before levels return from the lab
• Chloride-responsive vs. resistant alkalosis — partition vomiting from primary aldosteronism with a single urine chloride measurement
• Tumor lysis prophylaxis — risk-stratify and prevent the cascade before chemotherapy begins
For nurse practitioners, physician assistants, hospitalists, internists, nephrology fellows, critical care clinicians, and advanced-practice trainees managing fluid, electrolyte, and acid-base disturbances in real patients.
Buy this book. Bring it to rounds tomorrow. Use it tonight.