Nokea
Afterload reducers are not indicated in children with heart failure secondary to
- A. cardiomyopathy
- B. severe mitral insufficiency
- C. aortic stenosis
- D. ventricular septal defect
Correct Answer: C
Rationale: Afterload reducers are contraindicated in conditions where forward flow is already compromised, such as aortic stenosis.
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The parents of a young child with heart failure tell the nurse that they are “nervous†about giving digoxin (Lanoxin). The nurse’s response should be based on which statement?
- A. It is a safe, frequently used drug.
- B. It is difficult to either overmedicate or undermedicate with digoxin.
- C. Parents lack the expertise necessary to administer digoxin.
- D. Parents must learn specific, important guidelines for administration of digoxin.
Correct Answer: D
Rationale: Digoxin has a narrow therapeutic range. The margin of safety between therapeutic, toxic, and lethal doses is very small. Specific guidelines are available for parents to learn how to administer the drug safely and to monitor for side effects. Digoxin is a frequently used drug, but it has a narrow therapeutic range. Small amounts of the liquid are given to infants, making it easy to overmedicate or undermedicate. Parents may lack the necessary expertise to administer the drug at first, but with discharge preparation, they should be prepared to administer the drug safely.
Following surgical repair of the bladder, a female client is being discharged from the hospital to home with an indwelling urinary catheter. Which instruction is most important for the nurse to provide to this client?
- A. Avoid coiling the tubing and keep if free of kinks
- B. Cleanse the perineal area with soap and water twice daily
- C. Keep the drainage bag lower than the level of the bladder
- D. Drink 1,000 ml of fluids daily to irrigate catheter
Correct Answer: C
Rationale: Keeping the drainage bag lower than the bladder prevents backflow of urine, reducing the risk of infection.
What is the age-predicted maximum heart rate in a 60-year old man on beta blockers?
- A. 122
- B. 133
- C. 155
- D. 166
Correct Answer: A
Rationale: Beta blockers reduce the maximum heart rate. The age-predicted maximum heart rate for a 60-year-old on beta blockers is approximately 122 bpm.
Defects of complement system should be suspected in:
- A. Recurrent folliculitis
- B. Facial swelling following trauma
- C. Recurrent meningococcal infection
- D. Pneumocystis carinii pneumonia
Correct Answer: C
Rationale: Recurrent meningococcal infection: Defects in the complement system, especially the terminal complement components, increase the risk of recurrent meningococcal infections.
A male client is recovering from an episode of urinary tract calculi. During discharge teaching, the client asks about the dietary restriction he should follow. In discussing fluid intake, the nurse should include which type of fluid limitation?
- A. Low-sodium soups.
- B. Over all fluid intake
- C. Tea and hot chocolate
- D. Citrus fruit juices
Correct Answer: C
Rationale: Tea and hot chocolate contain oxalates, which can contribute to the formation of calcium oxalate stones. Limiting these fluids helps prevent recurrence.