53 results
Common sodium channel blockers which cause QRS widening.

Anticonvulsants: 
 - Carbamazepine 
Antidysrhythmics:  
 - Group
sodium channel blockers ... which cause QRS ... - Amantadine Beta ... #EKG #Pharmacology ... Medications #Toxicology #Diagnosis
Deep T Wave Inversions - Differential
Normal variants 
  A. Juvenile T wave pattern
global T wave inversion ... bundle branch block ... #Differential #Diagnosis ... #Causes #Cardiology ... #ECG #EKG #Electrocardiogram
Mobitz Type I (Wenckebach Phenomenon) 2nd Degree AV Block on EKG
 • P-R interval gradually increases
2nd Degree AV Block ... till a dropped beat ... Second #Degree #AV #Block ... #AVBlock #diagnosis ... #labeled #clinical
Causes of Anemia with Low Mean Corpuscular Volume (MCV) - Differential Diagnosis Algorithm
Decreased Heme Synthesis or
- Differential Diagnosis ... Normal HgbA • Beta-Thalassemia ... No HgbA • Beta-Thalassemia ... #Differential #Diagnosis ... #Hematology
Pheochromocytoma - Diagnosis and Management Summary
10 percent rule = 10% of pheochromocytomas are extra-adrenal, multiple, bilateral,
Pheochromocytoma - Diagnosis ... malignant, pediatric cases ... procedures (eg, ... Starting beta blockers ... • Beta blockers
Diagnostic Framework for Hemolysis - Intravascular vs Extravascular Causes
Intravascular Hemolysis:
 • Mechanical Trauma (Microangiopathic hemolytic anemia):
Diagnostic Framework ... Extravascular Causes ... - Drugs (Beta ... Extravascular #Causes ... #hematology #anemia
Faget's Sign & Liebermeister's Rule
Pulse-Temperature Dissociation
EVERY 1 F RISE IN TEMPERATURE -> HR INCREASES 8-10 BPM
INFECTIOUS
BPM INFECTIOUS CAUSES ... • Beta Blockers ... • Drug Fever CLINICAL ... #Dissociation #diagnosis ... #differential #causes
Approach to ECGs - Tachy/Bradyarrhythmias
Tachyarrhythmias - HR > 100
Wide
  (1) VT - DANGER
  (2)
- w/ variable block ... - treat with beta-agonist ... 200ms from longer pause ... bradyarrhythmia #ECG ... #EKG #diagnosis
Hyperkalemia - Differential Diagnosis Framework

PseudoHyperkalemia:
 • Lab error
 • Traumatic venipuncture
 • Hemolysis, thrombocytosis, leukocytosis
 •
- Differential Diagnosis ... potassium • Beta ... cell membrane - Beta ... #causes #potassium ... #high #nephrology
Generalized Weakness - Differential Diagnosis Framework
"l feel weak":
 • Infectious: Influenza, EBV, PNA, Bacteremia, Sepsis
 •
- Differential Diagnosis ... Depression, anxiety, Conversion ... Rhabdomyolysis, Critical ... #Differential #Diagnosis ... #causes #neurology