61 results
Hyponatremia - Differential Diagnosis by Mechanism
Decr Blood Pressure (“Decr Effective Circulating Volume”) 
 - Volume depletion
- Cirrhosis Syndrome ... carcinoma of the lung ... pathology (e.g. ... #Diagnosis #Table ... #Causes #Sodium
Hypoxemic Respiratory Failure - Differential Diagnosis Framework
DECREASED INSPIRED OXYGEN
 • Low PATM Can decrease first part
Diagnosis Framework ... High altitude (eg ... shunting (eg, pulmonary ... intracardiac shunting (eg ... #Diagnosis #pulmonary
Approach to ECGs - Syncope Syndromes
Electrolytes
 • ↑K - brady, peak T, wide QRS, no P,
Approach to ECGs ... QT via long ST ... #ECG #EKG #Checklist ... #diagnosis #cardiology ... electrocardiogram #differential
Pulmonary Pathology and Associated Lung Ultrasound Findings
Pneumothorax:
 - No lung sliding/barcode sign
 - Lung point (hard
sliding/barcode sign ... pleura in severe cases ... Respiratory Distress Syndrome ... #differential # ... diagnosis #signs
Classification of Jaundice
Unconjugated hyperbilirubinemia (predominantly indirect bilirubin)
 • Increased bilirubin production (eg, hemolytic anemias, hemolytic reactions,
reactions, hematoma, pulmonary ... uptake and storage (eg ... (eg, spirochetal ... Classification #diagnosis ... #unconjugated #differential
Reflex Testing - Causes of Hyporeflexia and Hyperreflexia
Focal Hyporeflexia: 
 • Radiculopathy, Mononeuropathy, Polyneuropathy, Acute stroke,
polyneuropathy (e.g ... Guillain-Barré syndrome ... Hyperthyroidism, Serotonin syndrome ... #differential # ... diagnosis #table
Syncope is a sudden, transient loss of consciousness, which is thought to be secondary to cerebral
cardiac syncope, e.g ... carotid sinus syndrome ... syncope (ruling out differential ... orthostatic vital sign ... and an initial ECG
Hypermagnesemia - Etiologies by Mechanism
Renal Failure 
Excessive Mg Administration 
 - Massive PO intake
IV Mg infusion (e.g ... - Tumor lysis syndrome ... #Diagnosis #High ... #Magnesium #Table ... #Causes #Management
Causes of Peripheral Edema - Differential Diagnosis
Increased Hydrostatic Pressure
 • Volume Expansion: Kidney failure, Pregnancy, Medication
Causes of Peripheral ... Medication side effect (e.g ... Heart failure, Pulmonary ... Cirrhosis, Nephrotic syndrome ... • Filariasis (e.g
Problem Representation - Approach to the Infectious Disease Patient

Who: Patient age and host/risk factors (such as
illness What: Key signs ... define the clinical syndrome ... illness script (e.g ... . brain and lung ... #History #HPI #Diagnosis