12 results
Cannon A waves during AVNRT on Physical Exam
In AVNRT, the atria and ventricles contract nearly simultaneously
Cannon A waves during ... EKG of the same ... to diagnose the ... excludes other differentials ... #Cardiology #Neck
Cannon A Waves
 • Caused by atrial contracting against a closed tricuspid valve
 • Atrioventricular dissociation
Cannon A Waves ... atrial activation from ... SVT (e.g., junctional ... #AWaves #diagnosis ... #cardiology #CVP
Approach to ECGs - Tachy/Bradyarrhythmias
Tachyarrhythmias - HR > 100
Wide
  (1) VT - DANGER
  (2)
Approach to ECGs ... Narrow - Regular ... bradyarrhythmia #ECG ... #EKG #diagnosis ... electrocardiogram #cardiology #differential
Approach to ECGs - Ischemia
MI = Biomarkers + ECG or echo/angiogram findings
Pathologic Q - 1/3 height
= Biomarkers + ECG ... than QRS - deWinter ... #Ischemia #ECG ... #EKG #diagnosis ... Interpretation #differential
STEMI Equivalents on ECG
 • Conventional STEMI - Elevation of ST segment at (or 40-60 ms
Equivalents on ECG ... J point • De Winter ... #Equivalents #ECG ... #EKG #diagnosis ... #differential #
Premature Ventricular Complexes (PVC's) - Summary Framework

Why PVCs?  Can be the first manifestation of cardiac
arrhythmia syndromes (e.g ... 300 = NSVT EKG ... Diagnosis: • PAC ... more intensive treatment ... #differential #
Myasthenia Gravis Overview

Myasthenia Gravis is an autoimmune disorder of the postsynaptic neuromuscular junction.  Ab to
Neck: “dropping ... life-threatening Differential ... myasthenia Diagnosis ... Serologic and EMG ... Myasthenia #Gravis #diagnosis
Tongue Pathology 

Geographic tongue, fissured tongue, and hairy tongue are the most common tongue problems and
do not require treatment ... require biopsy to differentiate ... benign lesions (e.g ... lymphoepithelial cysts) from ... Recognition and diagnosis
Approach to Tracheostomy Emergencies - OnePager Summary
COMPONENTS OF A TRACHEOSTOMY TUBE:
 • Obturator - inserted into
tube against the neck ... Call for help (e.g ... above, Insert finger ... #Emergencies #diagnosis ... #differential #
It is important to recognize Acute Decompensated Heart Failure (ADHF) as more than just simply a
auscultation, JVD ... ECG is vital while ... They may benefit from ... usually results from ... #diagnosis #differential