Page 1691 - Saunders Comprehensive Review For NCLEX-RN
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posterior position, and placement directly over breast
                                                tissue should be avoided.

                                        E. Automated external defibrillator (AED)

                                             1. An AED is used by laypersons and emergency medical
                                                technicians for prehospital cardiac arrest.
                                             2. Place the client on a firm, dry surface.
                                             3. Turn on the AED and follow the voice prompts.
                                             4. Place the electrode patches in the correct position on
                                                the client’s chest.
                                             5. Stop CPR.
                                             6. Ensure that no one is touching the client to avoid
                                                motion artifact during rhythm analysis.
                                             7. The machine will advise whether a shock is necessary.
                                             8. Shocks are recommended for pulseless VT or VF only
                                                (usually 3 shocks are delivered).
                                             9. If unsuccessful, CPR is continued for 1 minute and
                                                then another series of shocks is delivered.
                                F. Automated implantable cardioverter-defibrillator (AICD)
                                             1. Description

                                                      2. Client education

                                                             a. An AICD monitors cardiac rhythm and
                                                                detects and terminates episodes of VT
                                                                and VF by delivering 25 to 30 joules up
                                                                to 4 times, if necessary.
                                                             b. An AICD is used in clients with
                                                                episodes of spontaneous sustained VT
                                                                or VF unrelated to an MI or in clients
                                                                whose medication therapy has been
                                                                unsuccessful in controlling life-
                                                                threatening dysrhythmias.
                                                             c. Transvenous electrode leads are placed
                                                                in the right atrium and ventricle in
                                                                contact with the endocardium; leads
                                                                are used for sensing, pacing, and
                                                                delivery of cardioversion or
                                                                defibrillation.
                                                             d. The generator is most commonly
                                                                implanted in the left pectoral region.
                                                             e. Instruct the client in the basic functions
                                                                of the AICD.
                                                             f. Know the rate cutoff of the AICD and
                                                                the number of consecutive shocks that
                                                                it will deliver.
                                                             g. Wear loose-fitting clothing over the
                                                                AICD generator site.




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