22 results
Causes of HyperKalemia - Differential Diagnosis
Increased extracellular K+:
 • Tissue injury
 • Hemolysis
 • Rhabdomyolysis
 •
- Differential Diagnosis ... glycosides • High ... blockers - MCW ... Nephrology @MCW_Nephrology ... #Differential #Diagnosis
Drugs associated with hypokalemia and hypomagnesemia

Hypokalemia
- Shift from extracellular fluid to intracellular fluid compartment
  -
- Insulin (high ... overdose) - Sodium ... hypomagnesemia #Medications ... #differential #diagnosis ... #nephrology #Causes
Hypokalemia Differential Diagnosis Algorithm
Hypertensive:
 • High Al, Low R - Primary aldosteronism
 • High Al, High
Hypokalemia Differential ... Diagnosis Algorithm ... Gitelman's syndrome #Hypokalemia ... #Differential #Diagnosis ... #Algorithm #nephrology
Mechanisms of Drug-Induced Hyperkalemia 
 • Direct renin inhibitor (Aliskiren)
 • Renin release inhibition (NSAIDs, Beta-Blockers)
of Drug-Induced Hyperkalemia ... (Heparin) • Sodium-channel ... • Exogenous (KCL ... #differential #diagnosis ... pharmacology #potassium #medications
Modified Hyponatremia Algorithm
Hypertonic Hyponatremia: Hyperglycemia, Mannitol, Urologic irrigants
Hypotonic Hyponatremia: 
 • ADH ON (UOsm > 100):
ON (UNa < 30): Hypovolemia ... > 30): SIADH, Medications ... osmostat, Cerebral salt ... Hyponatremia #Algorithm #diagnosis ... #sodium #nephrology
Hyponatremia Differential Diagnosis Algorithm - Utilizing Uric Acid 
ADH promotes Urea/uric acid excretion along with water
Hyponatremia Differential Diagnosis ... Osmolarity 3) Urine Sodium ... Acid → SIADH - High ... Uric Acid → renal salt ... #Algorithm #nephrology
Algorithm for patients with hypokalemia on the basis of the potassium-to-creatinine ratio in the urine
Urine K+
patients with hypokalemia ... • Cell shift: Hypokalemic ... mmol creatinine) High ... differential #algorithm #diagnosis ... #nephrology
Causes of Hypernatremia - Differential Diagnosis
Inadequate water intake:
 • Lack of access to water
Extrarenal hypotonic fluid
- Differential Diagnosis ... insipidus Excessive salt ... #Differential #Diagnosis ... #Causes #nephrology ... #sodium #high
Hyperkalemia - Differential Diagnosis Framework

PseudoHyperkalemia:
 • Lab error
 • Traumatic venipuncture
 • Hemolysis, thrombocytosis, leukocytosis
 •
Diagnosis Framework ... phlebotomy High ... Medications 2. ... causes #potassium #high ... #nephrology
Physiologic Approach to Hypotonic Hyponatremia
The next time you have a case of hypotonic hyponatremia, give the
diuresis can be high ... Present (Uosm ≥100): Hypovolemia ... #differential #diagnosis ... #table #sodium ... #nephrology