ATI RN
ATI Fluid and Electrolytes
1. Who would have the greatest percentage of body water?
- A. an obese male
- B. a nonobese male
- C. a nonobese female
- D. a newborn
Correct answer: D
Rationale: Newborns have a higher percentage of body water compared to adults due to their higher body fluid content. Factors such as the higher ratio of body surface area to body volume and lower body fat content contribute to this. This is why a newborn would have the greatest percentage of body water. Choices A, B, and C are incorrect because obesity and gender do not determine the percentage of body water in individuals. Therefore, the correct answer is a newborn.
2. How does the concept of neural plasticity relate to recovery from brain injuries?
- A. Neural plasticity means the brain cannot recover from injuries.
- B. Neural plasticity allows the brain to recover and reorganize after injuries.
- C. Neural plasticity refers to the brain's inability to change after injury.
- D. Neural plasticity is a myth.
Correct answer: B
Rationale: Neural plasticity allows the brain to recover and reorganize after injuries. It is the brain's ability to adapt and change, forming new connections or reorganizing existing ones to compensate for damage. Choice A is incorrect as neural plasticity enables recovery. Choice C is incorrect as neural plasticity involves the brain's capacity to change. Choice D is incorrect as neural plasticity is a well-established phenomenon in neuroscience.
3. Which risk factors increase the risk of atherosclerosis?
- A. Exercise
- B. Excessive sun exposure
- C. Insufficient vaccinations
- D. Smoking
Correct answer: D: Smoking
Rationale: Smoking is a major risk factor for atherosclerosis. It significantly contributes to the buildup of plaque in the arteries and thereby increases the risk of cardiovascular diseases. On the other hand, exercise is generally beneficial for cardiovascular health and is not a risk factor for atherosclerosis. Excessive sun exposure and insufficient vaccinations have no established links to atherosclerosis, making them incorrect options for this question.
4. A health care provider prescribes feedings of 1 to 2 oz Pedialyte every 3 hours and to advance to 1/2 strength Similac with iron as tolerated postoperatively for an infant who had a pyloromyotomy. The nurse should decide to advance the feeding if which occurs?
- A. The infant's IV line has infiltrated.
- B. The infant has not voided since surgery.
- C. The infant's mother states the infant is tolerating the feeding okay.
- D. The infant is taking the Pedialyte without vomiting or distention.
Correct answer: D
Rationale: The decision to advance feedings after a pyloromyotomy is based on the infant's ability to tolerate the current feedings without vomiting or abdominal distention. Ensuring the infant can keep down Pedialyte is the key indicator for moving to the next stage of feeding. Choices A, B, and C are incorrect because they do not directly relate to the infant's ability to tolerate the feeding. An infiltrated IV line, lack of voiding, or the mother's statement do not provide direct information on the infant's tolerance to the feeding, unlike the absence of vomiting and distention.
5. A patient is starting on finasteride (Proscar) for the treatment of benign prostatic hyperplasia (BPH). What should the nurse include in the patient teaching?
- A. The medication will cure BPH after treatment is complete.
- B. The effects of the medication may take several weeks or months to become noticeable.
- C. The medication may cause increased hair growth.
- D. The medication may decrease libido.
Correct answer: B
Rationale: The correct answer is B. The effects of finasteride in treating BPH may take several weeks or months to become noticeable. It is important for the nurse to educate the patient about this expected time frame to manage expectations. Choice A is incorrect because finasteride does not cure BPH but helps in managing symptoms. Choice C is incorrect as one of the side effects of finasteride is decreased hair growth. Choice D is incorrect as finasteride may cause a decrease in libido as a side effect.
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