SVT

Question 1

Med for refractory unstable SVT

Answer 1

Shock and 150mg Amio slowly

Question 2

Meds for stable SVT

Narrow and regular

Answer 2

Adenosine (avoid w/ asthma and WPW)
- 6mg then 12mg push

Question 4

Narrow complex tachycardias

Answer 4

Sinus tach
A fib/A flutter
AV nodal re-entry

Question 5

Wide complex tachycardia rhythms

Answer 5

Monomorphic VT
Polymorphic VT
SVT aberrant

Question 6

Problems with tachycardia

Answer 6

Decreased CO
Pulm edema
Hypotension
Dyssynchrony b/w atria and ventricles

Question 8

HR that usually causes instability

Answer 8

> 150

Question 10

Determining if tachycardia is the cause of instability

Answer 10

Usually <150 bpm is not causing instability unless there is ventricular dysfunction

Question 11

Interventions for wide complex tachycardia

Answer 11

Expert consultation
Adenosine if regular and monomorphic
Cardioversion

Question 12

Interventions for narrow complex tachycardia

Answer 12

Vagal maneuvers (if regular)
Adenosine (if regular)
Beta blockers
Calcium channel blockers

Question 15

Sinus tachycardia characteristics

Answer 15

P -waves
Originates in sinus node
Usually does not exceed 120-130 bpm
Always caused by external influences on the heart (not cardiac conditions)

Question 16

Tx of sinus tachycardia

Answer 16

Determine and treat underlying cause
Cardioversion is contraindicated (?)

Question 17

Adenosine dose

Answer 17

6mg
12mg
12mg

Raise arm after giving

Question 18

MOA of adenosine

Answer 18

Increases AV block
- will terminate reentry arrhythmias in 2 min
- will not terminate a flutter or A fib, but will slow rhythm so you can determine flutter or fib

Question 19

Adenosine contraindications.

Answer 19

Can cause bronchospasm

Do not give with asthma or COPD