15 results
Hypomagnesemia - Etiologies by Mechanism

Decreased GI Uptake 
 - Poor dietary intake (particularly common in alcoholics)
Excessive GI losses ... renal tubular dysfunction ... Differential #Diagnosis #Low ... Magnesium #Table #Classification ... #Causes #Workup
Antiarrhythmics - Vaughan Williams Classification:
CLASS 1 - Sodium Channel Blockers:
 • MOA: Block fast Na+ channels
Vaughan Williams Classification ... Strong Blockade, Slow ... of phase 4 to slow ... #Pharmacology #Classification ... #Classes #pathophysiology
Shock Overview
A state of tissue hypoxia due to decreased or dysregulated oxygen delivery or extraction, resulting
death -> end-organ dysfunction ... Hypovolemic Shock - Low ... EmmGeezee #Shock #Classification ... #differential #causes ... #classification
Disseminated Intravascular Coagulation (DIC) Overview

Increased Clotting and Consumption of Clotting Factors

Findings:
 • Bleeding
 • Recent history
Prolonged PT/PTT • Low ... protein C and S Pathophysiology ... 64%) • Renal dysfunction ... Treat primary cause ... Coagulation #diagnosis #causes
Shock Overview
A state of tissue hypoxia due to decreased or dysregulated oxygen delivery or extraction, resulting
death -> end-organ dysfunction ... Hypovolemic Shock - Low ... EmmGeezee #Shock #Classification ... #differential #causes ... #classification
Antiarrhythmics Pharmacology Summary
Cardiac Conduction Phases:
Phase 0 - Ventricular Depolarization:
 • Na+ channels open leading to a
open leading to slow ... Vaughan Williams Classification ... of phase 4 to slow ... #Pharmacology #Classification ... #Classes #pathophysiology
Hepatorenal Syndrome (HRS)

Definition:
• Functional, potentially reversible kidney impairment.
• Occurs in advanced liver disease: cirrhosis, severe alcoholic
Pathophysiology: ... Exclude other AKI causes ... Classification: ... liver transplant evaluation ... essential in all cases
Vitamin B12 (Cobalamin) Deficiency
Etiology:
 • Vit B12 - aka cobalamin. Present in foods derived from animal
• Common Causes ... medications, pancreatic dysfunction ... total body stores Evaluation ... leukopenia and/or low ... pit, low retic
Thiamine Deficiency - Differential Diagnosis Framework and Clinical Manifestations

Causes of Thiamine Deficiency:
 • Poor intake:
	- Diets
Manifestations Causes ... rice, Cereals • Low ... and myocardial dysfunction ... contraction, blood flow ... beriberi #nutrition #pathophysiology
Preoperative Risk Evaluation

Major Pre-Op Questions:
1. Does the patient have any modifiable risk factors that could be
Preoperative Risk Evaluation ... Performance thorough ... ASA class If ... or LV dysfunction ... Orthopedic • Low