12 results
Second Degree Heart Block, Mobitz Type I (Wenckebach)

P waves and QRS complexes are normal but... 
•
Second Degree Heart Block ... non-conducted P wave ... #SecondDegree #HeartBlock ... #Diagnosis #Cardiology ... #EKG #ECG #Electrocardiogram
Hyperkalemia on EKG
"Mild" Hyperkalemia
 • Peaked, narrow-based T Waves
 • Double counting of HR by EKG
EKG "Mild" Hyperkalemia ... of conduction block ... rhythm • "Sine wave ... #EKG #ECG #electrocardiogram ... #cardiology #diagnosis
Summary of Heart Blocks
1st Degree Heart Block:
 • Prolonged PR >200ms (5 small squares).
 • Narrow
non-conducted P wave ... Brady Management ... Degree, Mobitz II HeartBlock ... degrees #summary #Diagnosis ... #EKG #electrocardiogram
Approach to ECGs - Syncope Syndromes
Electrolytes
 • ↑K - brady, peak T, wide QRS, no P,
assoc with 1K, AV block ... Syncope #Syndromes #ECG ... #EKG #Checklist ... #diagnosis #cardiology ... #electrocardiogram
Atrioventricular (AV) Blocks

First Degree AV Block - "If your R is far from your P than
200 msec) • P wave ... Blocks #heart #heartblock ... #cardiology #ecg ... #ekg #diagnosis ... #electrocardiogram
Causes of ST Segment Elevation - Differential Diagnosis Framework

STEMI:
 • Upsloping convex STE: "Pardee's sign" +
- Differential Diagnosis ... Disorders: • Hyperkalemia ... no P waves • Hypercalcemia ... #differential #diagnosis ... #ekg #electrocardiogram
Hyperkalemia - Diagnosis and Management - GrepMed Handbook

S/Sx: Most pts asymptomatic. Weakness, cramping, nausea, paresthesias, palpitations,
Hyperkalemia - Diagnosis ... and Management ... reabsorption) Workup ... bradycardia → sine wave ... #Diagnosis #Management
Intraoperative Cardiac Ischaemia - Guidelines for Crises in Anaesthesia

If the patient is unconscious, signs of cardiac
depression • T wave ... CM5 continuous ECG ... Intraoperative #Checklist ... #Diagnosis #Management ... #Workup
High Central Neuraxial Block - Guidelines for Crises in Anaesthesia
• Can occur with deliberate or accidental
Central Neuraxial Block ... they may be fully aware ... Intraoperative #Checklist ... #Diagnosis #Management ... #Workup
Cardiac Arrest - Guidelines for Crises in Anaesthesia

The probable cause is one or more of: something
• Check ECG rhythm ... Hypovolaemia Hypo/hyperkalaemia ... CardiacArrest #Checklist ... #Diagnosis #Management ... #Workup