Other Major Arrhythmias Flashcards
What is the cause of Torsades De Pointes?
Anything to prolong the QT segment, so low potassium, drugs that block potassium or even congenital (long qt).
What is the rate and what foci is irritated?
Rate is 250-350. Ventricles are irritated
How do we treat torsades de pointes?
Magnesium sulfate
What 2 things do we see on EKG for hypothermia?
Bradycardia and J waves.
3 clinical features that equal Pulmonary embolism?
Sudden dyspnea, clear lung and normal x ray
What 3 things are seen on EKG for PE?
- Large S wave in 1
- ST depression in 2
- Large q wave in 3 with t wave inversion
What also can be present with PE on EKG, 2 things?
- Inverted t wave in V1-4
2. Transient RBBB
What is the hallmark EKG finding for hypothyroidism?
Widespread flattening or mild inversion of t waves WITHOUT associated st segment displacement
What do we see on EKG for Brugada Syndrome, 2 things?
RBBB with elevated st in V1-v3
What’s going on with Wellens Syndrome on the EKG and what does this indicate as far as what is going on in the heart?
T wave inversion in V2 and V3. Stenosis of anterior descending coronary
What is the hallmark of Long Qt Syndrome and what does it predispose the patient to?
QT syndrome is half of the cardiac cycle. Predisposes patients to ventricular arrhythmias.
What is the underlying issue with WPW Syndrome?
The patient has an accessory AV pathway called he bundle of Kent that excited some ventricular tissue prematurely.
What do you see on the EKG with WPW Syndrome?
Delta wave which is a less steep slope into the R wave.
