11 results
Hypokalemia - Differential Diagnosis Algorithm

Transcellular Shift:
 • Alkalosis
 • ↑ beta-2 adrenergic simulation 
 • Erythropoiesis
• Refeeding syndrome ... Medications Renal ... Losses Non-renal ... • Discontinued diuretic ... Diagnosis #Algorithm #nephrology
Causes of Hypokalemia - Differential Diagnosis Algorithm
Defining the cause of hypokalemia starts by measuring urinary K
Causes of Hypokalemia ... gastrointestinal K loss • Renal ... • Renal tubular ... Ureterosigmoidostomy, Diabetic ... algorithm #causes #nephrology
Causes of Hypokalemia
Transcellular Shifts:
 - Alkalosis, Increased plasma insulin (treatment of diabetic ketoacidosis), ß-Adrenergic agonists, Hypokalemic
(treatment of diabetic ... Villous adenoma Renal ... chewing tobacco, Renal ... use), Gitelman's syndrome ... differential #diagnosis #nephrology
Causes of Hyponatremia - Differential Diagnosis Algorithm
Hypovolemia, UNa > 20: 
 • Renal losses, Diuretic excess,
UNa > 20: • Renal ... losses, Diuretic ... Bicarbonaturia with renal ... Hypovolemia, UNa ... Acute or chronic renal
Hypomagnesemia - Differential Diagnosis
Renal Causes of Hypomagnesemia - Familial:
Bartter syndrome and Gitelman syndrome, Isolated recessive hypomagnesemia,
Differential Diagnosis Renal ... with secondary, hypocalcemia ... hypomagnesemia Renal ... Hypercalcemia, Post renal ... transplant, Diuretic
Hyperkalemia - Differential Diagnosis Framework

PseudoHyperkalemia:
 • Lab error
 • Traumatic venipuncture
 • Hemolysis, thrombocytosis, leukocytosis
 •
- Tumor lysis syndrome ... (Uncontrolled diabetes ... resistance Impaired Renal ... deficiency • Renal ... Type IV RTA • Renal
Causes of Secondary Hypertension - Workup and Differential Diagnosis
Approach (when evaluation should be done):
1. Severe or
heart failure, neurologic ... eg, presence of renal ... • Vascular: Renal ... Renal parenchymal ... Neurologic disorders
Hyperkalemia - Differential Diagnosis Framework

PseudoHyperkalemia:
 • Lab error
 • Traumatic venipuncture
 • Hemolysis, thrombocytosis, leukocytosis
 •
- Tumor lysis syndrome ... (Uncontrolled diabetes ... resistance Impaired Renal ... deficiency • Renal ... Type IV RTA • Renal
Gitelman Syndrome - Diagnosis and Workup
Blood Work:
 - Hypokalemia
 - Hypomagnesemia
 - Metabolic Alkalosis
 - Elevated
Blood Work: - Hypokalemia ... Inappropriate renal ... Inappropriate renal ... kidney disease Renal ... Ultrasound - No
Gitelman Syndrome Overview

What?
• Inherited (AR) hypokalemic salt-losing tubulopathies affecting the thiazide-sensitive sodium chloride cotransporter
• Gitelman's syndrome
with thiazide diuretic ... (renal potassium ... Surreptitious diuretic ... , Renal tubular ... #diagnosis #nephrology