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diagnosis differential nephrology algorithm hypokalemia management low high pathophysiology workup classification treatment kidney pharmacology urine urology acute hypomagnesemia hyponatremia injury
Causes of Hyperkalemia Hyperkalemia is caused by excess potassium intake, impaired potassium excretion, or transcellular shifts. The
Causes of Hyperkalemia ... is caused by excess ... potassium intake ... with impaired renal ... and underlying renal
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 Hyperkalemia: Diagnostic algorithm Decreased renal potassium excretion • Acute renal failure • Chronic renal failure • Drugs Increased
Hyperkalemia: Diagnostic ... • Acute renal ... diet • Blood ... • Type 1 #Hyperkalemia ... Diagnosis #algorithm #nephrology
Hyperkalemia Treatment Options Stabilize cardiac membrane: • IV Calcium (peaks 5-10 minutes) Decrease potassium concentration: • IV Fluids Shift
Hyperkalemia Treatment ... (if preserved renal ... peaks 1-2h) • Blood ... LouLectures #Hyperkalemia ... #nephrology
Causes of Hyperkalemia - Differential Diagnosis Algorithm • Increased Intake • Reduced Excretion (IV potassium with
Causes of Hyperkalemia ... Excretion (IV potassium ... Transcellular Shift #Hyperkalemia ... #Nephrology #Differential ... Diagnosis #Algorithm #Causes
Hyperkalemia - Differential Diagnosis Framework PseudoHyperkalemia: • Lab error • Traumatic venipuncture • Hemolysis, thrombocytosis, leukocytosis •
Crush injury • Blood ... Blood transfusion ... differential #diagnosis #causes ... #potassium #high ... #nephrology
Causes of Hypokalemia - Differential Diagnosis Algorithm Defining the cause of hypokalemia starts by measuring urinary K
Causes of Hypokalemia ... Defining the cause ... gastrointestinal K loss • Renal ... • Renal tubular ... #nephrology #potassium
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
Hyperkalemia - Differential Diagnosis Framework PseudoHyperkalemia: • Lab error • Traumatic venipuncture • Hemolysis, thrombocytosis, leukocytosis •
Crush injury • Blood ... Blood transfusion ... differential #diagnosis #causes ... #potassium #high ... #nephrology
Hypokalemia - Differential Diagnosis Algorithm Extra-renal Losses: • Normal Acid-Base: Low intake • Metabolic acidosis: Gl tract
Hypokalemia - Differential ... Algorithm Extra-renal ... Diagnosis #Algorithm #causes ... #potassium #low ... #nephrology
Causes of Hyperkalemia Pseudohyperkalemia - Tourniquet use - Hemolysis (in vitro) - Leukocytosis - Thrombocytosis Intra- to extracellular
Causes of Hyperkalemia ... intoxication - Hyperkalemic ... Transfusion of aged blood ... acidosis) #Hyperkalemia ... #Causes #diagnosis
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