43 results
“H’s & T’s“ - The reversible causes of Cardiac Arrest 
Hypovolemia, Hypoxia/Hypoxemia, Hydrogen Ion Excess (Acidosis),
The reversible causes ... Pneumothorax, Thrombosis (Pulmonary ... Coronary) #HsTs #acls ... #differential # ... diagnosis #arrest
Hypoxia and Hypoxemia - Overview
Hypoxia - insufficient oxygen delivered to tissues to meet demands
Hypoxemia - low
(e.g low cardiac ... Nick Mark MD @nickmmark ... #summary #pulmonary ... #differential # ... diagnosis #causes
H’s and T’s Mnemonic - Causes of Cardiac Arrest
H's - Hypovolemia, Hypoxia, Hydrogen Ions (acidosis), Hyperkalemia
T’s Mnemonic - Causes ... - Hypovolemia, Hypoxia ... Thromboembolism (Pulmonary ... #differential # ... diagnosis #acls
Hypoxemia / Hypoxia - Rapid Response Management Algorithm

Stridor - Upper airway pathology:
 • Anaphylaxis
 • Foreign
pneumonia • Water: pulmonary ... ., GBS, MG, ALS) ... #Hypoxia #differential ... #Diagnosis #Management ... Algorithm #rapid #pulmonary
Dyspnea - Differential Diagnosis Framework

Cardiovascular Causes of Dyspnea:
 • Myocardium:
	- Heart failure
	- CAD/ACS
	- Valvulopathy
 • Electrical:
	-
Dyspnea - Differential ... Diagnosis Framework ... Transverse myelitis • Hematology ... #dyspnea #sob #differential ... #diagnosis #causes
Hypoxemic Respiratory Failure - Differential Diagnosis Framework
DECREASED INSPIRED OXYGEN
 • Low PATM Can decrease first part
Respiratory Failure - Differential ... Diagnosis Framework ... direction leads to hypoxemia ... #Differential # ... Diagnosis #pulmonary
Acute and Chronic Causes of Dyspnea - Differential Diagnosis
Pulmonary/Chest Wall:
 • Acute: Trauma, COPD exacerbation, Asthma
Acute and Chronic Causes ... of Dyspnea - Differential ... Diagnosis Pulmonary ... Valvular disease Head/Neck ... Diagnosis
Erythrocytosis - Polycythemia Differential Diagnosis Algorithm

Elevated Hemoglobin:
 • Males: Hb > 16.5 g/dL/HCT ≥ 49%
 •
Diagnosis Algorithm ... Polycythemia - Acquired Causes ... : Cardiac/pulmonary ... Paraneoplastic (e.g ... #hematology
Cannon A waves during AVNRT on Physical Exam
In AVNRT, the atria and ventricles contract nearly simultaneously
EKG of the same ... are enough to diagnose ... the case as Typical ... excludes other differentials ... JVP #Cardiology #Neck
Causes of Growth Discrepancy: Large for Gestational Age - Differential Diagnosis Algorithm
Maternal Factors:
 • Multiparity
 •
Causes of Growth ... Gestational Age - Differential ... Diagnosis Algorithm ... Complications: • Shoulder ... palsy secondary to hypoxia