9 results
Spirometry - PFT Interpretation Algorithm

- BWH Medicine Chiefs @BrighamChiefs

#Spirometry #PFTs #Interpretation #Algorithm #diagnosis #differential #pulmonary #function
Algorithm - ... #Algorithm #diagnosis ... #differential # ... pulmonary #function ... #testing
Hypokalemia - Differential Diagnosis Algorithm

Transcellular Shift:
 • Alkalosis
 • ↑ beta-2 adrenergic simulation 
 • Erythropoiesis
Hypokalemia - Differential ... Diagnosis Algorithm ... Transcellular Shift: • Alkalosis ... GI losses (NG suction ... nephrology #low #potassium
Hypokalemia - Differential Diagnosis
Poor Intake 
 - Starvation
 - Anorexia
GI Losses 
 - Vomiting / NG
Hypokalemia - Differential ... type 4) - Salt wasting ... Catecholamines - Alkalosis ... Hypokalemic periodic paralysis ... Diagnosis #Low #Potassium
Hypokalemia Evaluation Algorithm

Before evaluating hypokalemia, life threatening complications such as arrhythmias and paralysis should be looked
Hypokalemia Evaluation Algorithm ... arrhythmias and paralysis ... treated with IV potassium ... - Metabolic Alkalosis ... #differential #
Metabolic Alkalosis - Urinary Chloride Algorithm
Cl- responsive metabolic alkalosis
 • Kidney loss of Cl-
Urinary Chloride Algorithm ... Vomiting/nasogastric suction ... of sodium and potassium ... Chloride #urine #Algorithm ... #nephrology #differential
Causes of Metabolic Alkalosis: Differential Diagnosis
ECF volume contracted: urine chloride concentration <20 meq/L
 • Gastric alkalosis:
: Differential Diagnosis ... vomiting/ nasogastric suction ... other • Severe potassium ... Refeeding after fasting ... #Differential #
Causes of Hypokalemia
Transcellular Shifts:
 - Alkalosis, Increased plasma insulin (treatment of diabetic ketoacidosis), ß-Adrenergic agonists, Hypokalemic
Transcellular Shifts: - Alkalosis ... Hypokalemic periodic paralysis ... hypomagnesemia), Eating ... , nasogastric suction ... Hypokalemia #Causes #differential
Pragmatic diagnostic algorithm for hypokalemia. 
***Typical presentations: 
 • Vomiting: urine Na/Cl > 1.6, low urine
confirmed via genetic testing ... correcting serum potassium ... in most cases; interpretation ... dependent upon local laboratory ... hypokalemia #diagnosis #differential
Causes of Hypokalemia
I. Decreased intake
   A. Starvation
   B. Clay ingestion
II. Redistribution into
Metabolic alkalosis ... diuresis, salt-wasting ... Increased secretion of potassium ... #Hypokalemia #Differential ... Diagnosis #Low #Potassium