ATI RN
ATI Fluid and Electrolytes
1. Which condition can result from prolonged vomiting or diarrhea?
- A. Intracellular fluid
- B. Interstitial fluid
- C. Dehydration
- D. Electrolyte
Correct answer: C
Rationale: The correct answer is C: Dehydration. Prolonged vomiting or diarrhea can lead to significant fluid loss, causing dehydration. Intracellular fluid (choice A) and interstitial fluid (choice B) refer to specific compartments of body fluid and are not conditions resulting from vomiting or diarrhea. Electrolytes (choice D) are minerals that help maintain fluid balance in the body but are not the condition directly resulting from prolonged vomiting or diarrhea.
2. A client at risk for developing hyperkalemia states, 'I love fruit and usually eat it every day, but now I can't because of my high potassium level.' How should the nurse respond?
- A. Potatoes and avocados can be substituted for fruit.
- B. If you cook the fruit, the amount of potassium will be lower.
- C. Berries, cherries, apples, and peaches are low in potassium.
- D. You are correct. Fruit is very high in potassium.
Correct answer: C
Rationale: The correct answer is C. Berries, cherries, apples, and peaches are indeed low in potassium, making them suitable choices for someone at risk for hyperkalemia. Choice A is incorrect because potatoes and avocados are high in potassium and should be avoided in this situation. Choice B is incorrect because cooking fruit does not significantly lower its potassium content. Choice D is incorrect as it provides incorrect information, as not all fruits are very high in potassium.
3. The nurse is providing care for a patient with chronic obstructive pulmonary disease. When describing the process of respiration the nurse explains how oxygen and carbon dioxide are exchanged between the pulmonary capillaries and the alveoli. The nurse is describing what process?
- A. Diffusion
- B. Osmosis
- C. Active transport
- D. Filtration
Correct answer: A
Rationale:
4. Which negative ion is most abundant in blood plasma?
- A. Bicarbonate
- B. Chloride
- C. Hydroxide
- D. Phosphate
Correct answer: B
Rationale: Chloride (Cl-) is the most abundant anion in blood plasma. It plays a crucial role in maintaining osmotic balance and acid-base homeostasis. Bicarbonate (Choice A) is important for buffering acids in the body but is not the most abundant negative ion in blood plasma. Hydroxide (Choice C) is not typically found in high concentrations in blood plasma. Phosphate (Choice D) is an important anion in the body but is not as abundant as chloride in blood plasma.
5. What electrolyte value should be monitored when a patient is receiving a loop diuretic?
- A. Calcium levels
- B. Phosphorus levels
- C. Potassium levels
- D. Magnesium levels
Correct answer: C
Rationale: When a patient is receiving a loop diuretic like furosemide (Lasix), potassium levels should be monitored closely. Loop diuretics act on the ascending loop of Henle to inhibit the reabsorption of sodium and water, leading to potassium loss. Monitoring potassium levels is crucial to prevent hypokalemia, which can result in serious complications such as cardiac arrhythmias. Calcium levels (Choice A), phosphorus levels (Choice B), and magnesium levels (Choice D) are not typically affected directly by loop diuretics and do not require routine monitoring in this context.
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