29 results
Main Lung Ultrasound differences between COVID-19 involvement and other conditions that may yield respiratory symptoms
 •
Large pleural effusion ... localized pleural effusion ... areas #COVID19 #POCUS ... Lung #Ultrasound #Comparison ... #Table #Diagnosis
Hemorrhagic Pericardial Effusions (Hemopericardium)- Differential Diagnosis Framework

IATROGENIC DISEASE
Secondary to invasive cardiac procedures

NONIATROGENIC
• Malignancy (e.g., metastatic spread:
- Differential Diagnosis ... • Malignancy (e.g ... OTHER RARE CAUSES ... may have false negative ... #Differential #Diagnosis
Hypermagnesemia - Etiologies by Mechanism
Renal Failure 
Excessive Mg Administration 
 - Massive PO intake
Excessive IV Mg infusion ... (e.g. eclampsia ... #Differential #Diagnosis ... High #Magnesium #Table ... #Causes #Management
Hyperkalemia shortens repolarization; changes in the T wave provide the earliest clues to hyperpotassemia.
 - At
repolarization causes ... sine wave (QRS-T fusion ... #Diagnosis #Hyperkalemia ... #EKG #ECG #Changes ... #Progression #Table
Approach to ECGs - VT vs. SVT - Wide Tachycardias
DDx = VT vs. SVT with BBB
All
entirely positive or negative ... - Fusion beats ... VT #VTach #SVT #Comparison ... #ekg #cardiology ... #diagnosis #electrocardiogram
A toxidrome is a syndrome (set of symptoms) caused by specific medications or toxins.

There are 5
set of symptoms) caused ... methylphenidate (Ritalin) - Sedative-Hypnotic ... antihistamines #Diagnosis ... Toxicology #Toxidromes #Comparison ... #Table #Anticholinergics
Differentiating NBTE from Infective Endocarditis
No pathognomonic signs/symptoms or echo features that are specific to NBTE, and
is required for diagnosis ... Frequent false-negative ... in up to 30% of cases ... #Endocarditis #comparison ... #table
Hypotension - Guidelines for Crises in Anaesthesia

Hypotension is commonly due to unnecessarily deep anaesthesia, the autonomic
rate, rhythm, perfusion ... and positioning (e.g ... adult, 10 ml.kg-1 paediatric ... (eg steroid dependency ... Intraoperative #Checklist #Diagnosis
Shock - Differential Diagnosis Framework
MAP = CO x SVR
Hypovolemic (↓ Intravascular volume):
 • Hemorrhage, dehydration due
- Differential Diagnosis ... findings based on cause ... release syndrome, infusion ... #Differential #Diagnosis ... #table #comparison
Causes of Secondary Hypertension - Workup and Differential Diagnosis
Approach (when evaluation should be done):
1. Severe or
Causes of Secondary ... and Differential Diagnosis ... with previously stable ... patients with a negative ... #Differential #Diagnosis