ATI RN
ATI Fluid Electrolyte and Acid-Base Regulation
1. 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.
2. A nurse teaches a client who is being discharged home with a peripherally inserted central catheter (PICC). Which statement should the nurse include in this clients teaching?
- A. avoid carrying your grandchild with the arm that has the central catheter.
- B. Be sure to place the arm with the central catheter in a sling during the day
- C. Flush the peripherally inserted central catheter line with normal saline daily.
- D. You can use the arm with the central catheter for most activities of daily living.
Correct answer: A
Rationale:
3. A nurse in the medical-surgical unit has a newly admitted patient who is oliguric; the acute care nurse practitioner orders a fluid challenge of 100 to 200 mL of normal saline solution over 15 minutes. The nurse is aware this intervention will help:
- A. Distinguish hyponatremia from hypernatremia
- B. Evaluate pituitary gland function
- C. Distinguish reduced renal blood flow from decreased renal function
- D. Provide an effective treatment for hypertension-induced oliguria
Correct answer: C
Rationale: Administering a fluid challenge in oliguric patients helps to distinguish reduced renal blood flow from decreased renal function. This intervention aids in determining whether the oliguria is due to reduced renal blood flow (such as in fluid volume deficit or prerenal azotemia) or decreased renal function (such as in acute tubular necrosis). The response to this challenge can indicate the underlying cause. Choices A, B, and D are incorrect as they do not align with the purpose of a fluid challenge in oliguric patients.
4. Which organ has the greatest effect on fluid output?
- A. Kidneys
- B. Lungs
- C. Skin
- D. Intestines
Correct answer: A
Rationale: The correct answer is the kidneys. The kidneys are primarily responsible for regulating fluid balance by filtering blood and adjusting the volume and concentration of urine. The lungs primarily regulate gas exchange, not fluid balance. The skin plays a role in temperature regulation and protection but is not the primary organ for fluid output. The intestines are mainly involved in the absorption of nutrients and water, rather than fluid output.
5. The community health nurse is performing a home visit to an 84-year-old woman recovering from hip surgery. The nurse notes that the woman seems uncharacteristically confused and has dry mucous membranes. When asked about her fluid intake, the patient states, I stop drinking water early in the day because it is just too difficult to get up during the night to go to the bathroom. What would be the nurses best response?
- A. I will need to have your medications adjusted so you will need to be readmitted to the hospital for a complete workup
- B. Limiting your fluids can create imbalances in your body that can result in confusion. Maybe we need to adjust the timing of your fluids.
- C. It is normal to be a little confused following surgery, and it is safe not to urinate at night.
- D. If you build up too much urine in your bladder, it can cause you to get confused, especially when your body is under stress.
Correct answer: B
Rationale:
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