91 results
Hypokalemia - Differential Diagnosis Algorithm
Extra-renal Losses:
 • Normal Acid-Base: Low intake
 • Metabolic acidosis: Gl tract
Hypokalemia - Differential ... Diagnosis Algorithm ... Extra-renal Losses ... • HTN Absent: Loop ... and thiazide diuretics
Hypomagnesemia - Etiologies by Mechanism

Decreased GI Uptake 
 - Poor dietary intake (particularly common in alcoholics)
diarrhea / IBD Renal ... Medications - Loop ... abnormalities - Hypercalcemia ... - Hypokalemia ... Differential #Diagnosis #Low
Metabolic Alkalosis - Differential Diagnosis Algorithm - Urinary Chloride
 • Cl- responsive metabolic alkalosis
Differential Diagnosis Algorithm ... Remote use of loop ... or thiazide diuretics ... - Normal/low ... pressure: Active diuretic
Causes of Hypokalemia
Transcellular Shifts:
 - Alkalosis, Increased plasma insulin (treatment of diabetic ketoacidosis), ß-Adrenergic agonists, Hypokalemic
Causes of Hypokalemia ... Villous adenoma Renal ... anhydrase inhibitors, loop ... chewing tobacco, Renal ... syndrome (mimics loop
Causes of Hyponatremia - Differential Diagnosis Algorithm
Hypovolemia, UNa > 20: 
 • Renal losses, Diuretic excess,
Differential Diagnosis Algorithm ... losses, Diuretic ... tubal acidosis and metabolic ... Ketonuria, Osmotic diuresis ... failure Hypervolemia
Causes of High-anion Gap and Non-anion Gap Metabolic Acidosis
Causes of High-anion Gap Acidosis:
 • Lactic acidosis
Non-anion Gap Metabolic ... Ureterosigmoidostomy, jejunal loop ... , ileal loop ... Potassium-sparing diuretics ... aniongap #NonGap #Metabolic
Hypokalemia - Differential Diagnosis Algorithm

Transcellular Shift:
 • Alkalosis
 • ↑ beta-2 adrenergic simulation 
 • Erythropoiesis
Hypokalemia - Differential ... Diagnosis Algorithm ... Losses Non-renal ... vomiting) • Low ... • Discontinued diuretic
Primary Metabolic Alkalosis - Differential Diagnosis Algorithm
Volume Depleted 2° hyperaldosteronism
 • Low Urine Cl-: Vomiting, NGT
Primary Metabolic ... Differential Diagnosis Algorithm ... Cl intake, Diuretics ... High Urine Cl-: Diuretics ... hyperaldosteronism • High PRA: Renal
Causes of Metabolic Alkalosis - Differential Diagnosis Algorithm
GI Losses - Gastric
 • Vomiting
 • NG suction
GI
Causes of Metabolic ... Chloridorrhea Renal ... • Penicillins Renal ... tubular transport • Diuretics ... (loop/thiazide)
Causes of Hypokalemia - Differential Diagnosis Algorithm
Defining the cause of hypokalemia starts by measuring urinary K
Differential Diagnosis Algorithm ... Clinicians should also look ... gastrointestinal K loss • Renal ... • Renal tubular ... Post-hypercapnia • Diuretics