31 results
Multifocal Atrial Tachycardia (MAT)
• At least 3 different P wave morphologies: 
• Rate 100-180
• Irregular 
Etiology
Multifocal Atrial ... Secondary to chronic lung ... disease (COPD) • Hypoxia ... #Diagnosis #ECG ... #EKG #Management
Hypoxemic Respiratory Failure - Differential Diagnosis Framework
DECREASED INSPIRED OXYGEN
 • Low PATM Can decrease first part
- Differential Diagnosis ... High altitude (eg ... shunting (eg, pulmonary ... intracardiac shunting (eg ... , atrial or ventricular
Approach to ECGs - Tachy/Bradyarrhythmias
Tachyarrhythmias - HR > 100
Wide
  (1) VT - DANGER
  (2)
60 (1) Sinus bradycardia ... AV block 1º - long ... 200ms from longer pause ... bradyarrhythmia #ECG ... #EKG #diagnosis
Almost any type of cardiac arrhythmia is seen in digitalis toxic­ity. However, type II second-degree atrioventricular
seen are sinus bradycardia ... (SA) block, AV ... The various ECG ... #Diagnosis #Cardiology ... #EKG #ECG #Digoxin
Peri-operative Hyperthermia - Guidelines for Crises in Anaesthesia
If prolonged or ≥ 39 C this is a
Surgical devices, e.g ... Sepsis (→ 3-14) e.g ... malignant syndrome (e.g ... Intracranial blood • Hypoxic ... #Checklist #Diagnosis
Intraoperative  Bradycardia - Guidelines for Crises in Anaesthesia
Bradycardia in theatre should not be treated as
rate, rhythm, perfusion ... Consider known drug causes ... (eg. remifentanil ... Anesthesiology #Anesthesia ... Intraoperative #Checklist #Diagnosis
Intraoperative Cardiac Ischaemia - Guidelines for Crises in Anaesthesia

If the patient is unconscious, signs of cardiac
hypertension, tachy- or bradycardia ... trolley and 12-lead ECG ... CM5 continuous ECG ... Obtain a 12-lead ECG ... Intraoperative #Checklist #Diagnosis
Hypotension - Guidelines for Crises in Anaesthesia

Hypotension is commonly due to unnecessarily deep anaesthesia, the autonomic
using reservoir bag ... rate, rhythm, perfusion ... and positioning (e.g ... (eg steroid dependency ... Intraoperative #Checklist #Diagnosis
EKG Interpretation Cheat Sheet
1) Rate 
 - Regular - Count-Off 
 - Irregular - Count number
EKG Interpretation ... junction origin (e.g ... (e.g. ectopic atrial ... @AmyChung #EKG ... Interpretation #ECG
Intraoperative Hypertension - Guidelines for Crises in Anaesthesia
Hypertension is most commonly due to inappropriate depth of
Breathing - exclude hypoxia ... rate, rhythm, perfusion ... consider intra-arterial ... alfentanil can be diagnostic ... Anesthesiology #Anesthesia