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1 Cards in this Set

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Adenosine (Adenocard)

Action: Slows the conduction of electrical impulses at the AV node.

Indications: Stable reentry SVT. Does not convert AF, atrial flutter, or VT.

Adverse Effects: Common adverse reactions are generally mild and short-lived: sense of impending doom, complaints of flushing, chest pressure, throat tightness, numbness. Patients will have a brief episode of asystole after administration.

Contraindications: Sick sinus syndrome, second- or third-degree heart block, poison-/drug-induced tachycardia.
Dosage: Note: Adenosine should be delivered only by rapid IV bolus with a peripheral IV or directly into a vein, in a location as close to the heart as possible, preferably in the antecubital fossa. Administration of adenosine must be immediately followed by a saline flush, and then the extremity should be elevated.

• Adult: Initial dose 6 mg rapid IV, IO (over a 1- to 3-second period) immediately followed by a 20-mL rapid saline flush. If the first dose does not eliminate the rhythm in 1 to 2 minutes, 12 mg rapid IV, IO, repeat a second time if required.

• Pediatric:

• Children >50 kg: Same as adult dosing.

• Children <50 kg: Initial dose 0.1 mg/kg IV, IO (max dose: 6 mg) immediately followed by a ≥5-mL rapid saline flush; may repeat at 0.2 mg/kg (max dose: 12 mg).

Special Considerations:

Use with caution in patients with preexisting bronchospasm and those with a history of AF.
Elderly patients with no history of PSVT should be carefully evaluated for dehydration and rapid sinus tachycardia requiring volume fluid replacement rather than simply treated with adenosine,
Pregnancy class C