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. . You are caring for a patient who has a diagnosis of syndrome of inappropriate antidiuretic hormone secretion (SIADH). Your patients plan of care includes assessment of specific gravity every 4 hours. The results of this test will allow the nurse to as
- A. Nutritional status
- B. Potassium balance
- C. Calcium balance
- D. Fluid volume status
Correct answer: D
Rationale:
3. . One day after a patient is admitted to the medical unit, you note that the patient is oliguric. You notify the acutecare nurse practitioner who orders a fluid challenge of 200 mL of normal saline solution over 15 minutes. This intervention will achieve which of the following?
- A. Help distinguish hyponatremia from hypernatremia
- B. Help evaluate pituitary gland function
- C. Help distinguish reduced renal blood flow from decreased renal function
- D. Help provide an effective treatment for hypertension-induced oliguria
Correct answer: C
Rationale:
4. Under normal circumstances, the kidneys provide the greatest means of water loss. Which organ provides the second greatest means of water loss?
- A. Skin
- B. Lungs
- C. Intestines
- D. Muscles
Correct answer: A
Rationale: The correct answer is A: Skin. After the kidneys, the skin is the second largest route of water loss through perspiration. Choice B, Lungs, is incorrect as the lungs primarily exchange gases and do not play a significant role in water loss. Choice C, Intestines, is also incorrect as water loss through the intestines is minimal since most water is reabsorbed during digestion. Choice D, Muscles, is incorrect as muscles are not a major source of water loss in the body.
5. You are performing an admission assessment on an older adult patient newly admitted for end-stage liver disease. What principle should guide your assessment of the patient's skin turgor?
- A. Overhydration is common among healthy older adults.
- B. Dehydration causes the skin to appear spongy.
- C. Inelastic skin turgor is a normal part of aging.
- D. Skin turgor cannot be assessed in patients over 70.
Correct answer: C
Rationale: Inelastic skin is a normal change of aging. However, this does not mean that skin turgor cannot be assessed in older patients. Dehydration, not overhydration, causes inelastic skin with tenting. Overhydration, not dehydration, causes the skin to appear edematous and spongy. Choice A is incorrect because overhydration is not common among healthy older adults. Choice B is incorrect because dehydration leads to inelastic skin, not sponginess. Choice D is incorrect as skin turgor assessment can be done in patients of any age, including those over 70.
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