7 results
diagnosis differential hyperkalemia high management algorithm comparison effects hypokalemia lactated low lr normal ns pharmacology rhabdomyolysis ringers saline treatment
Hyperkalemia Treatment Options Stabilize cardiac membrane: • IV Calcium (peaks 5-10 minutes) Decrease potassium concentration: • IV Fluids Shift
minutes) Decrease potassium ... • IV Fluids Shift ... (if preserved renal ... peaks 1-2h) • Blood ... #nephrology
Hyperkalemia - Differential Diagnosis Framework PseudoHyperkalemia: • Lab error • Traumatic venipuncture • Hemolysis, thrombocytosis, leukocytosis •
Intracellular Shift ... resistance Impaired Renal ... deficiency • Renal ... Type IV RTA • Renal ... #nephrology
Hyperkalemia - Differential Diagnosis Framework PseudoHyperkalemia: • Lab error • Traumatic venipuncture • Hemolysis, thrombocytosis, leukocytosis •
Intracellular Shift ... resistance Impaired Renal ... deficiency • Renal ... Type IV RTA • Renal ... #nephrology
Causes of Hyperkalemia Pseudohyperkalemia - Tourniquet use - Hemolysis (in vitro) - Leukocytosis - Thrombocytosis Intra- to extracellular
shift - Acidosis ... excretion - Renal ... Selective defect in renal ... obstructive uropathy, renal ... transplantation, type IV renal
Hypokalemia Evaluation Algorithm Before evaluating hypokalemia, life threatening complications such as arrhythmias and paralysis should be looked
treated with IV potassium ... suggests extra-renal ... causes • Laxative ... losses: • High Blood ... #nephrology #low
Lactated Ringers (LR) vs Normal Saline (NS) - Comparison Composition of LR: • Sodium 130 mEq/L •
130 mEq/L • Potassium ... filtration - Renal ... stretch - decreased renal ... renal tissue perfusion ... Instability: - Renal
Rhabdomyolysis - Differential Diagnosis Framework and Management Summary Causes of Rhabdomyolysis: • Trauma: - Immobilization - Crush injury - Compartment
HYPOTENSION → renal ... vasoconstriction → decreased renal ... perfusion → renal ... Cast formation: Renal ... Monitor potassium
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