11 results
Diarrhea Workup and Management Algorithm in Transplant Patients
First Tier Microbiologic-Testing:
1. C. difficile PCR (Stool)
2. CMV qPCR
Diarrhea Workup ... Ova and Parasite ... negative and diarrhea ... #Workup #Management ... Transplant #diagnosis #differential
Algorithm for the Evaluation of Acute Diarrhea (< 7 days)
Are the following present?
   1.
Evaluation of Acute Diarrhea ... Ova and parasite ... testing, if: ... Diarrhea > 10 days ... management #algorithm #workup
Hypokalemia - Differential Diagnosis
Poor Intake 
 - Starvation
 - Anorexia
GI Losses 
 - Vomiting / NG
Hypokalemia - Differential ... NG drainage - Diarrhea ... type 4) - Salt wasting ... Diagnosis #Low #Potassium ... #Table #Classification
Chronic Diarrhea - Workup
Osmotic:
 • Consider food diary and trial avoiding certain foods or meds, Consider
Chronic Diarrhea ... - Workup Osmotic ... / #Chronic #Diarrhea ... #Workup #diagnosis ... #differential #
Hypomagnesemia - Etiologies by Mechanism

Decreased GI Uptake 
 - Poor dietary intake (particularly common in alcoholics)
losses - Chronic diarrhea ... Familial renal Mg wasting ... Hypomagnesemia #Differential ... Low #Magnesium #Table ... Classification #Causes #Workup
Solid Organ Transplant - Diarrhea - Diagnostic and Workup Algorithm
1st Tier Microbiologic Testing: CDiff (stool), CMV
Organ Transplant - Diarrhea ... Diagnostic and Workup ... Microbiologic Testing ... viral PCR (stool), Ova ... malabsorption #Diarrhea
Potassium-Binding Agents to Treat Hyperkalemia
Sodium zirconium cyclosilicate (Lokelma):
 • Mechanism: Preferentially captures K in exchange for
Potassium-Binding ... constipation, diarrhea ... constipation, diarrhea ... #pharmacology #table ... #comparison #binders
Hypokalemia Evaluation Algorithm

Before evaluating hypokalemia, life threatening complications such as arrhythmias and paralysis should be looked
treated with IV potassium ... differentiating kidney K wasting ... Laxative use • Diarrhea ... diagnosis #Algorithm #differential ... #potassium #nephrology
Causes of Metabolic Alkalosis: Differential Diagnosis
ECF volume contracted: urine chloride concentration <20 meq/L
 • Gastric alkalosis:
Metabolic Alkalosis: Differential ... Chloride-rich diarrhea ... other • Severe potassium ... Refeeding after fasting ... Metabolic #Alkalosis #Differential
Gitelman Syndrome Overview

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