Hypothermia Flashcards Preview

ECGs > Hypothermia > Flashcards

Flashcards in Hypothermia Deck (6)
Loading flashcards...
1
Q

Brady arrhythmias

A

Sinus Bradycardia
AF with slow ventricular response
Slow junctional rhythm
Varying degrees of AV block 1st-3rd

2
Q

Osborn Waves

A

Positive deflection at J point (negative in V1 & aVR)
Prominent in precordial leads
height proportional to degree of hypothermia

3
Q

QT

A

QT prolongation marked

Resolves with rewarming

4
Q

Shivering artifact

A

fuzziness of baseline

DDx: tremor/ parkinsons

5
Q

Other arrhythmias

A
Ventricular ectopics
cardiac arrest: 
-VF
-VT
-Asystole
6
Q

ECG Changes in Hypothermia

A
Rate: variable
Rhythm: 
-sinus brady
-AF / flutter
- Nodal rhythm
- AV block
- Premature ventricular contractions
- VF
-Asystole
Wave:
-TWI
Intervals
-Prolonged PR, QRS, QT