ATI RN
Fluid and Electrolytes ATI
1. The nurse assessing skin turgor in an elderly patient should remember that:
- A. Overhydration causes the skin to tent.
- B. Dehydration causes the skin to appear edematous and spongy.
- C. Inelastic skin turgor is a normal part of aging.
- D. Normal skin turgor is moist and boggy.
Correct answer: C
Rationale: Inelastic skin turgor is a normal part of aging. Dehydration, not overhydration, causes inelastic skin with tenting. Overhydration, not dehydration, causes the skin to appear edematous and spongy. Normal skin turgor is dry and firm. Choice A is incorrect because overhydration does not cause the skin to tent; it is dehydration that leads to tenting. Choice B is incorrect because dehydration, not overhydration, causes the skin to appear edematous and spongy. Choice D is incorrect because normal skin turgor is dry and firm, not moist and boggy.
2. 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.
3. What is the most important regulator of the amount of sodium in the body?
- A. Kidneys
- B. Small intestine
- C. Large intestine
- D. Skin
Correct answer: A
Rationale: The correct answer is A: Kidneys. The kidneys play a crucial role in regulating the amount of sodium in the body. They achieve this by filtering blood and controlling the excretion or reabsorption of sodium. The small intestine is primarily responsible for nutrient absorption, not sodium regulation. The large intestine is mainly involved in water absorption and waste elimination, not sodium balance. The skin helps regulate body temperature through sweating and does not directly regulate sodium levels.
4. . A nurse assesses a client who had an intraosseous catheter placed in the left leg. Which assessment finding is of greatest concern?
- A. The catheter has been in place for 20 hours.
- B. . The client has poor vascular access in the upper extremities.
- C. The catheter is placed in the proximal tibia.
- D. The clients left lower extremity is cool to the touch.
Correct answer: D
Rationale:
5. The nurse is caring for a patient in metabolic alkalosis. The patient has an NG tube to low intermittent suction for a diagnosis of bowel obstruction. What drug would the nurse expect to find on the medication orders?
- A. Cimetidine
- B. Maalox
- C. Potassium chloride elixir
- D. ) Furosemide
Correct answer: A
Rationale:
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