11 results
Algorithm for patients with hypokalemia on the basis of the potassium-to-creatinine ratio in the urine
Urine K+
the basis of the potassium-to-creatinine ... Gastrointestinal loss: Diarrhea ... Bartter syndrome, Gitelman ... #urine #potassium ... #differential #
Hypokalemia - Differential Diagnosis
Poor Intake 
 - Starvation
 - Anorexia
GI Losses 
 - Vomiting / NG
Hypokalemia - Differential ... NG drainage - Diarrhea ... #Differential # ... Diagnosis #Low #Potassium ... #Table #Classification
Hypokalemia - Differential Diagnosis Algorithm
Extra-renal Losses:
 • Normal Acid-Base: Low intake
 • Metabolic acidosis: Gl tract
Hypokalemia - Differential ... Gl tract loss (Diarrhea ... Bartter syndrome, Gitelman ... #Differential # ... Algorithm #causes #potassium
Hypokalemia Evaluation Algorithm

Before evaluating hypokalemia, life threatening complications such as arrhythmias and paralysis should be looked
A urine K/Cr ratio ... Laxative use • Diarrhea ... A urine K/Cr ratio ... Bartter syndrome, Gitelman ... diagnosis #Algorithm #differential
Gitelman Syndrome Overview

What?
• Inherited (AR) hypokalemic salt-losing tubulopathies affecting the thiazide-sensitive sodium chloride cotransporter
• Gitelman's syndrome
(renal potassium ... Hypocalciuria (spot urine ... ratio 0.5%) Differential ... Congenital chloride diarrhea ... Supplement: • Potassium
Hypomagnesemia - Etiologies by Mechanism

Decreased GI Uptake 
 - Poor dietary intake (particularly common in alcoholics)
losses - Chronic diarrhea ... Hypercalcemia - Hypokalemia ... syndromes - Gitelman ... Hypomagnesemia #Differential ... #Causes #Workup
Metabolic Alkalosis - Urinary Chloride Algorithm
Cl- responsive metabolic alkalosis
 • Kidney loss of Cl-
Congenital chloride diarrhea ... Bartter syndrome, Gitelman ... acidosis due to diarrhea ... of sodium and potassium ... Algorithm #nephrology #differential
Causes of Metabolic Alkalosis: Differential Diagnosis
ECF volume contracted: urine chloride concentration <20 meq/L
 • Gastric alkalosis:
Metabolic Alkalosis: Differential ... Chloride-rich diarrhea ... furosemide-like lesion) • Gitelman ... other • Severe potassium ... Metabolic #Alkalosis #Differential
Causes of Hypokalemia
I. Decreased intake
   A. Starvation
   B. Clay ingestion
II. Redistribution into
Gastrointestinal loss (diarrhea ... Increased secretion of potassium ... #Differential # ... Diagnosis #Low #Potassium ... #Classification
Blood Transfusion Reactions

Immune Mediated:
 • Febrile Non-Hemolytic Transfusion Reaction (FNHTR): Most common immune reaction to transfusion.
flank pain, dark urine ... cutaneous eruptions, diarrhea ... • Hypocalcemia ... , Hyperkalemia: ... products contain potassium