ATI RN
ATI Fluid Electrolyte and Acid-Base Regulation
1. A nurse assesses a client who is prescribed a medication that inhibits aldosterone secretion and release. For which potential complications should the nurse assess? (Select all that apply.)
- A. Urine output of 25 mL/hr
- B. Serum potassium level of 5.4 mEq/L
- C. Blood osmolality of 250 mOsm/L
- D.
Correct answer: A
Rationale:
2. A patient has questioned the nurses administration of IV normal saline, asking whether sterile water would be a more appropriate choice than saltwater. Under what circumstances would the nurse administer electrolyte-free water intravenously?
- A. Never, because it rapidly enters red blood cells, causing them to rupture.
- B. When the patient is severely dehydrated resulting in neurologic signs and symptoms
- C. When the patient is in excess of calcium and/or magnesium ions
- D. When a patients fluid volume deficit is due to acute or chronic renal failure
Correct answer: A
Rationale:
3. When considering overhydration:
- A. occurs less often than dehydration.
- B. can strain the kidneys.
- C. can be caused by giving intravenous fluids too rapidly.
- D. less common than dehydration.
Correct answer: C
Rationale: The correct answer is C. Overhydration can occur when intravenous fluids are administered too quickly, overwhelming the body's ability to excrete the excess fluid. Choices A, B, and D are incorrect. Choice A is incorrect because overhydration is less common than dehydration. Choice B is incorrect because while overhydration can strain the kidneys, it is not due to the burden being too heavy. Choice D is incorrect because dehydration is more common than overhydration.
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 assessing a client who has an electrolyte imbalance related to renal failure. For which potential complications of this electrolyte imbalance should the nurse assess? (Select all that do mot apply.)
- A. Electrocardiogram changes
- B. Slow, shallow respirations
- C. Paralytic ileus
- D. Skeletal muscle weakness
Correct answer: B
Rationale:
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