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. While assessing clients on a medical-surgical unit, which client is at risk for hypokalemia?
- A. Client with pancreatitis who has continuous nasogastric suctioning
- B. Client who is prescribed an angiotensin-converting enzyme (ACE) inhibitor
- C. Client in a motor vehicle crash who is receiving 6 units of packed red blood cells
- D. Client with uncontrolled diabetes and a serum pH level of 7.33
Correct answer: A
Rationale: Continuous nasogastric suctioning can lead to hypokalemia due to the loss of gastric contents rich in potassium. Therefore, a client with pancreatitis who has continuous nasogastric suctioning is at risk for hypokalemia. Option B is incorrect because ACE inhibitors may lead to hyperkalemia, not hypokalemia. Option C is incorrect as receiving packed red blood cells can lead to hyperkalemia due to the potassium content in the blood product. Option D is incorrect because a serum pH level of 7.33 indicates acidosis, which is not directly associated with hypokalemia.
3. What can cause dehydration?
- A. Prolonged vomiting.
- B. Prolonged diarrhea.
- C. Too little fluid intake.
- D. Prolonged vomiting, diarrhea, and too little fluid intake.
Correct answer: D
Rationale: Dehydration can result from significant fluid loss due to vomiting, diarrhea, or inadequate fluid intake. Prolonged vomiting and diarrhea lead to excessive fluid loss from the body, contributing to dehydration. Similarly, not consuming enough fluids can also result in dehydration. Choice A and B are too specific as they only mention one cause each, while choice C is also correct but does not encompass all the potential causes of dehydration as mentioned in choice D.
4. A client at risk for mild hypernatremia is being taught by a nurse. Which statement should the nurse include in this client's teaching?
- A. Weigh yourself every morning and every night
- B. Check your radial pulse twice a day
- C. Read food labels to determine sodium content
- D. Bake or grill the meat rather than frying it
Correct answer: C
Rationale: The correct answer is to 'Read food labels to determine sodium content.' This is important for a client at risk for mild hypernatremia because monitoring sodium intake is crucial in managing this condition. Choice A is not directly related to managing hypernatremia. Choice B focuses on pulse monitoring, which is not specific to managing sodium levels. Choice D addresses cooking methods, which can be beneficial but is not as directly related to sodium intake monitoring as reading food labels.
5. The baroreceptors, located in the left atrium and in the carotid and aortic arches, respond to changes in the circulating blood volume and regulate sympathetic and parasympathetic neural activity as well as endocrine activities. Sympathetic stimulation constricts renal arterioles, causing what effect?
- A. Decrease in the release of aldosterone
- B. Increase of filtration in the Loop of Henle
- C. Decrease in the reabsorption of sodium
- D. Decrease in glomerular filtration
Correct answer: D
Rationale:
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