Adenosine

Question 1

Adenosine:
Classification -
1. ___

Answer 1

Classification -

1. Antiarrhythmic

Question 2

Adenosine:
Action -
1. ___
2. ___

Answer 2

Action -

1. Acts on AV node to slow conduction.
2. May inhibit reentry pathways.

Question 3

Adenosine:
Onset of Action -
1. ___

Answer 3

Onset of Action -

1. Immediate

Question 4

Adenosine:
Duration of Action -
1. ___

Answer 4

Duration of Action -

1. Less than one minute.

Question 5

Adenosine:
Indication -
1. \_\_\_
2. \_\_\_
3. \_\_\_

Answer 5

Indication -

1. Conversion of stable narrow complex SVT to sinus rhythm.
2. Conversion of unstable narrow complex reentry tachycardia to sinus rhythm.
3. Regular and monomorphic wide complex tachycardia, thought to be or previously defined to be reentry SVT.

Question 6

Adenosine:
Contraindication -
1. ___
2. ___

Answer 6

Contraindication -

1. Second and third degree heart blocks, sick sinus syndrome, unless patient has a pacemaker.
2. Hypersensitivity to adenosine.

Question 7

Adenosine:
Use with Caution -
1. \_\_\_
2. \_\_\_
3. \_\_\_
4. \_\_\_
5. \_\_\_
6. \_\_\_

Answer 7

Use with Caution -

1. May produce transient first, second, and third degree blocks or asystole for 10-15 seconds.
2. Asystolic pause may be longer in patients on Tegretol (carbamazepine) or Persantine (dipyridamole).
3. Patients taking theophylline or caffeine may require higher doses.
4. Patients with asthma may experience bronchoconstriction.
5. May be used with wide QRS complex SVT at direction of Base Station. Its use may cause acceleration of the rate.
6. It is ineffective in atrial fibrillation or flutter, and ventricular tachycardia.

Question 8

Adenosine:
Dosage and Administration -
1. (IV Best Practices)

Answer 8

Dosage and Administration -

1. Place IV in antecubital for best absorption using at least an 18 gauge catheter.

Question 9

Adenosine:
Adverse Reaction -
1. (List of 16)

Answer 9

Adverse Reaction -
1. Common but transient: Asystole, Bradycardia (temporary), Palpitations, Hypotension, Dizziness, Blurred Vision, Dyspnea, Chest pain, Back/neck pain, Burning sensation, Tingling in arms, Numbness, Flushing, Sweating, Apprehension, Nausea.

Question 10

Adenosine:
Dosage and Administration -
1. Adult: ___

Answer 10

Dosage and Administration -
1. Adult: 6 mg by rapid IV push over 1-3 seconds followed by a rapid NS flush 20 mL, then elevate extremity. If no response within 1-2 minutes, give 12 mg by same method as before.

Question 11

Adenosine:
Dosage and Administration -
1. Pediatric: ___

Answer 11

Dosage and Administration -
1. Pediatric: 0.1 mg/kg up to 6 mg rapid IV push over 1-3 seconds followed by a rapid NS flush of 5-10 mL. If no response within 1-2 minutes, give 0.2 mg/kg up to 12mg by the same method as before.