32 results
Mobitz Type I (Wenckebach Phenomenon) 2nd Degree AV Block on EKG
 • P-R interval gradually increases
Block on EKG ... till a dropped beat ... to 6:5 in this ECG ... #diagnosis #cardiology ... #EKG #ECG #Electrocardiogram
Approach to ECGs - Syncope Syndromes
Electrolytes
 • ↑K - brady, peak T, wide QRS, no P,
Approach to ECGs ... assoc with 1K, AV ... Syncope #Syndromes #ECG ... #EKG #Checklist ... #diagnosis #cardiology
Beta Blocker Side Effects / Toxicity
Cardiac Side Effects:
 • Sinus bradycardia, AV block, Heart failure exacerbation,
Beta Blocker Side ... Sinus bradycardia, AV ... exacerbation, Beta ... syndrome (e.g. ... #pharmacology #diagnosis
Summary of Heart Blocks
1st Degree Heart Block:
 • Prolonged PR >200ms (5 small squares).
 • Narrow
Brady Management ... • Block in AV ... degrees #summary #Diagnosis ... #EKG #electrocardiogram ... #ecg #cardiology
Approach to ECGs - Tachy/Bradyarrhythmias
Tachyarrhythmias - HR > 100
Wide
  (1) VT - DANGER
  (2)
Approach to ECGs ... - treat with beta-agonist ... block (lower AV ... bradyarrhythmia #ECG ... #EKG #diagnosis
Severe Heart Failure & Cardiogenic Shock - Management Checklist 
Evaluation 
 - EKG & echocardiography
- EKG & echocardiography ... Nephrotoxins (e.g ... Initiation of beta-blocker ... failure - Any beta-blocker ... (eg diltiazem)
BRASH Syndrome

B - Bradycardia
R - Renal failure
A - AV nodal blockade
S - Shock
H - Hyperkalemia

Typical ECG
Renal failure A - AV ... Hyperkalemia Typical ECG ... , ß blocker, or ... BRASH #Syndrome #diagnosis ... #management #pathophysiology
Endocarditis checklist
Initial evaluation
 • Peripheral blood cultures (three sets at three different sites)
 • Additional culture
if suspected (e.g ... telemetry for heart block ... (+/- daily EKG) ... of infection (e.g ... #criticalcare #diagnosis
Visual Guide to AV Nodal Reentrant Tachycardia (AVNRT) - Pathophysiology
 - Dual AV nodal physiology is
Tachycardia (AVNRT) - Pathophysiology ... pathway which blocks ... created if the beat ... ECG usually shows ... Tachycardia #AVNRT #Pathophysiology
Intraoperative Cardiac Ischaemia - Guidelines for Crises in Anaesthesia

If the patient is unconscious, signs of cardiac
trolley and 12-lead ECG ... CM5 continuous ECG ... Obtain a 12-lead ECG ... #Checklist #Diagnosis ... #Management #Workup