20 results
“H’s & T’s“ - The reversible causes of Cardiac Arrest 
Hypovolemia, Hypoxia/Hypoxemia, Hydrogen Ion Excess (Acidosis),
The reversible causes ... of Cardiac Arrest ... Hyperkalemia, Hypothermia Tamponade ... (Cardiac), Toxins ... #HsTs #acls #differential
H’s and T’s Mnemonic - Causes of Cardiac Arrest
H's - Hypovolemia, Hypoxia, Hydrogen Ions (acidosis), Hyperkalemia
T’s Mnemonic - Causes ... of Cardiac Arrest ... Toxins / Tablets, Tamponade ... #Arrest #Causes ... #differential #
Shock - Differential Diagnosis Algorithm
Warm Extremities
 - Distributive Shock - Low JVP
Shock - Differential ... Pneumothorax • Cardiac ... Tamponade - Hypovolemic ... #Hypotension #Differential ... Diagnosis #Algorithm #causes
Syncope - Differential Diagnosis Algorithm
Neurocardiogenic:
 • Vasovagal
 • Orthostatic Hypotension
 • Autonomic Neuropathy
 • Situational (micturition,
Syncope - Differential ... • Migraine Cardiac ... Tamponade ... • AFib/AFlutter ... Diagnosis #Algorithm #causes
Hypotension / Shock Differential Diagnosis Algorithm
Hypovolemic:
 • Poor oral intake
 • Hemorrhage
 • Renal loss
 •
Differential Diagnosis ... Obstructive: • Cardiac ... tamponade • Tension ... #Hypotension #Differential ... #causes
Tachypnea - Differential Diagnosis Framework

Definitions
 • Tachypnea: Respiratory rate > 20/min, shallow breathing in adults
 •
Tachypnea - Differential ... motion (PVFM) Cardiac ... Pulmonary embolism • Cardiac ... Pericardial effusion/Tamponade ... • Hypovolemic shock
Shock - Differential Diagnosis Framework
MAP = CO x SVR
Hypovolemic (↓ Intravascular volume):
 • Hemorrhage, dehydration due
Shock - Differential ... tamponade, Vascular ... findings based on cause ... uw_IMresidency #Shock ... #Differential #
Approach to Undifferentiated Shock - OnePager Summary
Shock occurs when there is inadequate blood flow (CO) &
Pneumothorax, Cardiac ... Tamponade, Pulmonary ... pancreatitis, post-cardiac ... arrest, amniotic ... #diagnosis #differential
Pulse Abnormalities - Differential Diagnosis Algorithm
Unequal/DeIayed:
 • Obstructive arterial disease (ie. Atherosclerosis)
 • Aortic dissection
 •
Abnormalities - Differential ... pressure >10mmHg: • Cardiac ... tamponade • AECOPD ... • Hypovolemic shock ... Diagnosis #Algorithm #causes
Shock Types - Classification
State of cellular and tissue hypoxia due to: reduced oxygen delivery, increased oxygen
infarction, following cardiac ... arrest or decompensated ... pneumothorax, cardiac ... tamponade, constrictive ... #criticalcare #differential