11 results
Hypokalemia - Differential Diagnosis
Poor Intake 
 - Starvation
 - Anorexia
GI Losses 
 - Vomiting / NG
type 4) - Salt wasting ... Differential #Diagnosis #Low ... #Potassium #Table ... #Classification ... #Causes
Hypokalemia Evaluation Algorithm

Before evaluating hypokalemia, life threatening complications such as arrhythmias and paralysis should be looked
Hypokalemia Evaluation Algorithm ... complications such as ... from other causes ... suggests extra-renal causes ... consumption • Low
Acute Coronary Syndrome (ACS) Definitions - Stable Angina, Unstable Angina, NSTEMI, STEMI
1 STABLE ANGINA - Angina
Coronary Syndrome (ACS ... demand in the setting ... adequate blood flow ... thrombus formation causes ... Diagnosis #Cardiology #ACS
Hypomagnesemia - Etiologies by Mechanism

Decreased GI Uptake 
 - Poor dietary intake (particularly common in alcoholics)
Familial renal Mg wasting ... Differential #Diagnosis #Low ... #Magnesium #Table ... #Classification ... #Causes #Workup
Antiarrhythmics Pharmacology Summary
Cardiac Conduction Phases:
Phase 0 - Ventricular Depolarization:
 • Na+ channels open leading to a
moving back to resting ... Vaughan Williams Classification ... 3 - Potassium Channel ... #Pharmacology #Classification ... #Classes #pathophysiology
Preoperative Risk Evaluation

Major Pre-Op Questions:
1. Does the patient have any modifiable risk factors that could be
ASA class If ... algorithm to determine ... Orthopedic • Low ... • <12mo since ACS ... surgery Stress Testing
Physiologic Approach to Hypotonic Hyponatremia
The next time you have a case of hypotonic hyponatremia, give the
time you have a case ... normal volume-based algorithm ... can be high or low ... Cerebral Salt Wasting ... differential #diagnosis #table
Causes of Hypokalemia
I. Decreased intake
   A. Starvation
   B. Clay ingestion
II. Redistribution into
Causes of Hypokalemia ... diuresis, salt-wasting ... Differential #Diagnosis #Low ... #Potassium #Classification ... #Causes
Pragmatic diagnostic algorithm for hypokalemia. 
***Typical presentations: 
 • Vomiting: urine Na/Cl > 1.6, low urine
Pragmatic diagnostic algorithm ... urine Na/Cl > 1.6, low ... confirmed via genetic testing ... correcting serum potassium ... continued in most cases
Causes of Hyperkalemia
l. Pseudohyperkalemia
  A Cellular efflux; thrombocytosis, erythrocytosis, leukocytosis, in vitro hemolysis
  B.
Causes of Hyperkalemia ... Drug-associated: heparin, low-molecular-weight ... Diagnosis #High #Potassium ... #Classification ... #Causes