Tachy/bradycardias

Question 1

Pulseless VT AKA…

Answer 1

Cardiac arrest

Question 2

In what circumstances is adenosine contradicted?

Answer 2

Asthmatics

Question 3

What is sick sinus syndrome?

Answer 3

Dysfunction of the SA node

Leads to periods of bradycardia + arrest + tachycardia

Question 4

What drug is commonly associated with causing bradycardias?

Answer 4

Digoxin

Question 5

How would you manage a patient with unstable tachycardia?

Answer 5

DDCV -> amiodarone

Question 6

How would you manage AF?

Answer 6

Acute

• > BB/CCB (as rate control)
• > digoxin (as rate control if heart failure)
• > amiodarone (as rhythm control)
• > A/C

Question 7

What score is used to establish if you need to A/C a patient?

Until this assessment is carried out what is the drug of choice? What does it change to after that point?

Answer 7

CHAD2DS2VASC

Heparin -> warfarin/ oral A/C e.g. rivoraxaban

Question 8

What drug is given in bradycardia?

Answer 8

Atropine

Question 9

What is the management for a patient with stable SVT?

Answer 9

Vagal manoeuvres -> adenosine

Question 10

How are patients with WPW syndrome treated?

Answer 10

Medical = Amiodarone 
Surgical = radio-ablation of additional pathway

Question 11

What kind of stroke is most associated with AF?

Answer 11

Embolic

Question 12

Describe the differences between VT and VF:
HR
ECG
Treatment

Answer 12

VF

• completly random broad tachycardia
• looks crazy on ECG
• DCCV

VT

• > 100bpm broad tachycardia
• more regular broad tachycardia on ECG
• if stable give amodarone -> no response DCCV

Question 13

Amiodarone MoA?

Answer 13

Potassium channel antagonist