14 results
Hypokalemia Differential Diagnosis Algorithm

Low intake 
• poor oral intake 

Renal loss 
• Medication 
• Hypomagnesemia 
•
Diagnosis Algorithm ... Medication • Hypomagnesemia ... Transcellular shift ... #Differential #Diagnosis ... Algorithm #Causes #Classification
Hypokalemia - Differential Diagnosis
Poor Intake 
 - Starvation
 - Anorexia
GI Losses 
 - Vomiting / NG
Diagnosis Poor ... - Polyuria - Hypomagnesemia ... #Differential #Diagnosis ... #Low #Potassium ... #Table #Classification
Drugs associated with hypokalemia and hypomagnesemia

Hypokalemia
- Shift from extracellular fluid to intracellular fluid compartment
  -
Drugs associated ... with hypokalemia ... - Shift from extracellular ... #hypokalemia #hypomagnesemia ... #differential #diagnosis
Mechanisms of Drug-Induced Hyperkalemia 
 • Direct renin inhibitor (Aliskiren)
 • Renin release inhibition (NSAIDs, Beta-Blockers)
Mechanisms of Drug-Induced ... • Increased EC shift ... #differential #diagnosis ... #pharmacology #potassium ... #medications #druginduced
Hypophosphatemia - Differential Diagnosis Algorithm

Transcellular Shift
 • Recovery From DKA
 • Refeeding Syndrome
 • Acute Respiratory
- Differential Diagnosis ... Transcellular Shift ... Alkalosis • Hypokalemia ... • Hypomagnesemia ... #Algorithm #endocrinology
Causes of Hypokalemia
Transcellular Shifts:
 - Alkalosis, Increased plasma insulin (treatment of diabetic ketoacidosis), ß-Adrenergic agonists, Hypokalemic
Transcellular Shifts ... Alcoholism (worsened by hypomagnesemia ... Conn's, Liddle's), Drugs ... Fever Other: - Hypomagnesemia ... #differential #diagnosis
Hyperkalemia - Differential Diagnosis Framework

PseudoHyperkalemia:
 • Lab error
 • Traumatic venipuncture
 • Hemolysis, thrombocytosis, leukocytosis
 •
Diagnosis Framework ... reactions Common Drugs ... • Recent IV potassium ... Intracellular Shift ... #causes #potassium
Hyperkalemia - Differential Diagnosis Framework

PseudoHyperkalemia:
 • Lab error
 • Traumatic venipuncture
 • Hemolysis, thrombocytosis, leukocytosis
 •
Diagnosis Framework ... reactions Common Drugs ... • Recent IV potassium ... Intracellular Shift ... #causes #potassium
Causes of Hyperkalemia
Pseudohyperkalemia
 - Tourniquet use
 - Hemolysis (in vitro)
 - Leukocytosis
 - Thrombocytosis
Intra- to extracellular
Causes of Hyperkalemia ... shift - Acidosis ... Renal failure* - Drugspotassium-sparing ... acidosis) #Hyperkalemia ... #Causes #diagnosis
Evaluation and Management of Hypokalemia

Hypokalemia is often asymptomatic. Evaluation begins with a search for warning signs
Hypokalemia is ... transcellular shifts ... of concurrent hypomagnesemia ... depletion impedes potassium ... #Diagnosis #Hypokalemia