2235 results
Mean Arterial Pressure (MAP)

Average arterial pressure throughout one cardiac cycle, systole, and diastole. 
Surrogate indicator of
Cardiac Output (CO ... (CVP) MAP = (CO ... Cardiac output (CO ... dromotropy, and lusitropy ... chronotropy #dromotropy #lusitropy
Shock Classification and Differential Diagnosis
SHOCK
 • MAP <65, SBP <90, drop in SBP > 40
 •
Classification and Differential ... Distributive: • High CO ... Cardiogenic: • Low CO ... Obstructive: • Low CO ... Classification #Differential
Shock - Differential Diagnosis Framework
MAP = CO x SVR
Hypovolemic (↓ Intravascular volume):
 • Hemorrhage, dehydration due
Shock - Differential ... Framework MAP = CO ... third-spacing • ↓ CO ... arrhythmia • ↓ CO ... uw_IMresidency #Shock #Differential
Causes of Acute and Chronic Pelvic Pain - Differential Diagnosis Algorithm
Acute Pelvic Pain:
 • Non-Gynecologic
 •
Pelvic Pain - Differential ... Pelvic Pain: • Co-morbidities ... #Pelvic #Pain #Differential
Shock - Differential Diagnosis Framework
 - MAP <65. SBP <90, drop in SBP > 40
 -
Shock - Differential ... Lactate > 1.5 High CO ... Cord Injury Low CO ... Sophia_Hayes_MD #Shock #Differential
Sinus Tachycardia - Differential Diagnosis Framework
Autonomic System:
 • Excess Stimulation: Nicotine, Caffeine, Sympathomimetics, Anticholinergics
 • Withdrawal:
Tachycardia - Differential ... Pheochromocytoma Inadequate CO ... #Tachycardia #Differential
POCUS - Measuring Cardiac Output
1) Calculate LVOT Area
2) Calculate LVOT VTI
3) Calculate Cardiac Output

SV = (LVOT
) x (LVOT VTI) CO ... LVOT VTI) X HR CO ... Cardiac #Output #CO
Vasopressors and Inotropes - Pharmacology Summary
Vasopressors
Phenylephrine (alpha-1)
 • Increases BP, SVR
 • Risk of reflex bradycardia
Increases BP, SVR, CO ... Increases HR, SVR, CO ... contractility, CO ... • Increases CO
Approach to Undifferentiated Shock - OnePager Summary
Shock occurs when there is inadequate blood flow (CO) &
inadequate blood flow (CO ... Pump Problem (↓ CO ... may develop low CO ... Shock #diagnosis #differential
High Output Heart Failure - Pathophysiology and Differential Diagnosis
Obesity - Systemic Vasodilation, Vasoactive Adipokines
Arteriovenous Fistula -
Pathophysiology and Differential ... Anemia - Increased CO ... Pathophysiology #Differential