ATI RN
ATI Fluid Electrolyte and Acid-Base Regulation
1. . 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:
2. . A nurse assesses a client with diabetes mellitus who is admitted with an acid-base imbalance. The clients arterial blood gas values are pH 7.36, PaO2 98 mm Hg, PaCO2 33 mm Hg, and HCO3 18 mEq/L. Which manifestation should the nurse identify as an exam
- A. Increased rate and depth of respirations
- B. ncreased urinary output
- C. Increased thirst and hunger
- D. ncreased release of acids from the kidneys
Correct answer: A
Rationale:
3. A nurse is assessing clients who have intravenous therapy prescribed. Which assessment finding for a client with a peripherally inserted central catheter (PICC) requires immediate attention?
- A. The initial site dressing is 3 days old.
- B. The PICC was inserted 4 weeks ago.
- C. A securement device is absent.
- D. Upper extremity swelling is noted.
Correct answer: D
Rationale:
4. 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.
5. A nurse is caring for a client who has a serum calcium level of 14 mg/dL. Which provider order should the nurse implement first?
- A. Encourage oral fluid intake.
- B. Connect the client to a cardiac monitor.
- C. Assess urinary output.
- D. Administer oral calcitonin (Calcimar).
Correct answer: A
Rationale: The correct answer is to encourage oral fluid intake. With a serum calcium level of 14 mg/dL, the client is at risk of hypercalcemia. Encouraging oral fluid intake helps to promote hydration and can help prevent further elevation of calcium levels. Connecting the client to a cardiac monitor (Choice B) is important but not the first priority in this situation. Assessing urinary output (Choice C) is relevant but does not address the immediate concern of high serum calcium levels. Administering oral calcitonin (Calcimar) (Choice D) may be a treatment option later, but the first step should be to address hydration.
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