12 results
Multifocal Atrial Tachycardia (MAT)
• At least 3 different P wave morphologies: 
• Rate 100-180
• Irregular 
Etiology
Multifocal Atrial ... 3 different P wave ... • Oxygen • Treatment ... Tachycardia #MAT #Cardiology ... #EKG #Management
Summary of Heart Blocks
1st Degree Heart Block:
 • Prolonged PR >200ms (5 small squares).
 • Narrow
non-conducted P wave ... Brady Management ... P and QRS • Atrial ... summary #Diagnosis #EKG ... #cardiology
Approach to ECGs - Ischemia
MI = Biomarkers + ECG or echo/angiogram findings
Pathologic Q - 1/3 height
Approach to ECGs - Ischemia ... asymmetrical, similar or bigger ... than QRS - deWinter ... #ECG #EKG #diagnosis ... electrocardiogram #cardiology
Atrioventricular (AV) Blocks

First Degree AV Block - "If your R is far from your P than
200 msec) • P wave ... , longer, longer ... independently of the atria ... heart #heartblock #cardiology ... #ecg #ekg #diagnosis
STEMI Equivalents on ECG
 • Conventional STEMI - Elevation of ST segment at (or 40-60 ms
Equivalents on ECG ... J point • De Winter ... deviation) • Acute ischemia ... #EKG #diagnosis ... #differential #cardiology
Interphalangeal Joint Dislocation
Interphalangeal joint dislocations almost always occur dorsally, look for associated avulsion fractures! Here's a
; ROM of —0-80 degrees ... joint; ROM — 0-120 degrees ... Complications include swan neck ... tendon), mallet finger ... tendon) • ED Management
Intraoperative Cardiac Ischaemia - Guidelines for Crises in Anaesthesia

If the patient is unconscious, signs of cardiac
depression • T wave ... CM5 continuous ECG ... Consider invasive arterial ... consultation with cardiology ... Checklist #Diagnosis #Management
Premature Ventricular Complexes (PVC's) - Summary Framework

Why PVCs?  Can be the first manifestation of cardiac
• Myocardial ischemia ... • Underlying ischemic ... 300 = NSVT EKG ... more intensive treatment ... #differential #cardiology
Myasthenia Gravis Overview

Myasthenia Gravis is an autoimmune disorder of the postsynaptic neuromuscular junction.  Ab to
- Fluctuating degree ... /variable degree ... Neck: “dropping ... Serologic and EMG ... Gravis #diagnosis #management
Hyperkalemia - Diagnosis and Management - GrepMed Handbook

S/Sx: Most pts asymptomatic. Weakness, cramping, nausea, paresthesias, palpitations,
/crush injury, ischemia ... - ↓ Effective arterial ... T, flat P, ST depress ... bradycardia → sine wave ... ileus/obstruction (ischemia