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Gloria Milhouse, a 68-year-old woman, is driven to the ED by her husband, who states she “passed 
out” while riding in the car, and he had difficulty rousing her.

Suspecting a cardiac dysrhythmia, the MD places Mrs. Milhouse under observation on a cardiac monitor.
 

During her interview, Mrs. Milhouse revealed that she passed out 2 weeks ago at home but recovered quickly. She admits to having frequent heart palpitations and a feeling that her heart is “racing.” She denies alcohol or tobacco use and drinks one cup of coffee daily. 

She is pale and anxious, her BP is 160/82, and her apical pulse is 114 and regular. 

 

3. Mrs. Milhouse continues under observation in the ED on a cardiac monitor. Her husband, who is sitting with her, suddenly calls out for help.
When the nurse enters the cubicle, she finds Mrs. Milhouse unresponsive and experiencing another run of SVT. Her heart rate is 225.
 

The MD orders adenosine (Adenocard) 6 mg IV push - 

a. Explain the characteristic/action of adenosine (Adenocard): 
When Mrs. Milhouse’s SVT does not resolve, the second bolus of 12 mg is given 2 minutes 
later, resolving her SVT. Mrs. Milhouse’s husband asks the nurse to explain what SVT is. 

a. Explain SVT: 

4. Mrs. Milhouse is admitted to the cardiac telemetry unit. She is scheduled for an 
electrophysiology (EP) study and possible radiofrequency catheter ablation on the 
following day.

a. What are EP and radiofrequency catheter ablation? Please explain
b. What are the nursing preparation and patient education regarding the EP and 
ablation procedures? 
c. Which nursing interventions should the nurse undertake for Mrs. Milhouse when 
she returns to the unit after the procedure? 

SCIENCE
HEALTH SCIENCE
NURSING
NURS 204

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