Fluid, Electrolyte & Acid-Base
Fluid balance, electrolyte imbalances, IV therapy, and acid-base disorders.
Free interactive tool · start here
Change one electrolyte. See the whole patient respond.
Drag any value and watch the other labs, the ECG, the reflexes and the volume answer the way a real patient's would — then hang a bag and see whether it helped. Every imbalance in this domain is loaded and ready.
Free interactive tool · ABGs
Move CO₂ or bicarbonate. Read the gas in three calls.
pH, then the cause, then compensation — you make each call and the explanation fills in when you get it right. Eight patients, random gases, and the bedside plan for each one.