PACU

Question 1

Hydralazine

• Onset
• DOA
• MOA

Answer 1

• Onset: 15-30 min
• DOA: 4-6 hr
• MOA: Direct ARTERIAL smooth muscle relaxation

Question 2

Labetalol

• Onset
• DOA
• MOA

Answer 2

• Onset: 5-10 min
• DOA: 3-5 hr
• MOA: a1 non selective B-antagonist

Question 3

Side FX with:
Hydralazine
Labetaol

Answer 3

Hydralazine: reflex tachycardia

Labetaol: caution with heart block, cardiac conduction abnl, Reactive airway disease

Question 4

Metoprolol

• Onset
• DOA
• MOA

Answer 4

• Onset: 20-40 min
• DOA: 15-30 min
• MOA: B1 selective blocker

Question 5

Clevidipine

• Onset
• DOA
• MOA

Answer 5

• Onset: 1-2 min
• DOA: 5-15 min
• MOA: CCB

Question 6

Esmolol

• Onset
• DOA
• MOA

Answer 6

• Onset: 6-10min
• DOA: <20 min
• MOA: Cardioselective B-antagonist

Question 7

Supraventricular tachycardias are a _______ QRS complex. Unless they have:
1.
2.

Answer 7

narrow

1. concurrent BBB
2. HR >100 bpm

Question 8

Atrial tachycardias originate from ______, or are caused by _______

Answer 8

a separate ectopic pacer focus than the SA node

reentrant pathways

Question 9

______ causes the aberrant P-wave morphology in AVNRT. P waves are usually absent or unsually shaped

Answer 9

simultaneous forward and reverse signal conductin across the AV node and accessory pathway

Question 10

_____ is the most common SVT

Answer 10

AVNRT 60%

Question 11

Tx of AVNRT

Answer 11

Valsalva maneuvers (carotid massage)

Adenosine (6-12mg) to break reentry process

Question 12

Tx of Vtach with a pulse

tx of pulseless Vtach

Answer 12

amiodarone 150mg IV over 10 min

Chest compressions, secure airway, synchronized cardioversion or defib with 200-360J
- EPI q3 min

Question 13

Ventricular tachycardias are a ______ QRS complex

Answer 13

wide

Question 14

Vfib is defined as ______

Answer 14

an irregular rhythm that results from one or multiple rapidly firing foci of electrical activity