]> 2026-07-31T09:41:00+00:00 WBR286 0 en Calcium gluconate <font color="Green">'''Correct.'''</font>Calcium supplementation (calcium gluconate 10% (10ml), preferably through a central venous catheter as the calcium may cause phlebitis) does not lower potassium but decreases myocardial excitability, protecting against life threatening arrhythmias. Normal saline <font color="red">'''Incorrect.'''</font>Hydration is the best initial step in any patient following trauma in order to maintain the cardiac output. This patient does not have any signs of bleeding and is hemodinamically stable. Sodium bicarbonate <font color="red">'''Incorrect.'''</font> Bicarbonate therapy (e.g. 1 ampule (45mEq) infused over 5 minutes) is effective in cases of metabolic acidosis. The bicarbonate ion will stimulate an exchange of cellular H+ for Na+, thus leading to stimulation of the sodium-potassium ATPase. It will not prevent acutely the development of arrhythmias. Mannitol <font color="red">'''Incorrect.'''</font>It is an osmotic diuretic used to force diuresis and protect from the myoglobinuria damage. It does not prevent arrhythmias following crush injury-related hyperkalemia. Fasciotomy <font color="red">'''Incorrect.'''</font> It is the surgical treatment of choice in compartment syndrome. However, following a crush injury, the rise in potasium could lead to fatal arrythmias, which should be treated initially with calcium gluconate. Internal medicine Surgery A Musculoskeletal/Rheumatology Surgery Electrolytes 2020-10-28T03:00:45Z 2459150.6255208 WBR286