ATI RN
Fluid and Electrolytes ATI
1. A patient is taking spironolactone (Aldactone) to control her hypertension. Her serum potassium level is 6 mEq/L. For this patient, the nurse's priority would be to assess her:
- A. Neuromuscular function
- B. Bowel sounds
- C. Respiratory rate
- D. Electrocardiogram (ECG) results
Correct answer: D
Rationale: In a patient with a serum potassium level of 6 mEq/L due to spironolactone use, the nurse's priority is to assess the Electrocardiogram (ECG) results. Hyperkalemia can lead to life-threatening arrhythmias, such as ventricular fibrillation, which can be detected on an ECG. While changes in neuromuscular function, bowel sounds, and respiratory rate can occur with hyperkalemia, the most critical assessment related to the patient's condition would be monitoring the ECG for signs of cardiac complications.
2. 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.
3. You are caring for a patient with a diagnosis of pancreatitis. The patient was admitted from a homeless shelter and is a vague historian. The patient appears malnourished and on day 3 of the patients admission total parenteral nutrition (TPN) has been started. Why would you know to start the infusion of TPN slowly?
- A. Patients receiving TPN are at risk for hypercalcemia if calories are started too rapidly.
- B. Malnourished patients receiving parenteral nutrition are at risk for hypophosphatemia if calories are started too aggressively.
- C. Malnourished patients who receive fluids too rapidly are at risk for hypernatremia.
- D. Patients receiving TPN need a slow initiation of treatment in order to allow digestive enzymes to accumulate
Correct answer: B
Rationale:
4. A patient's most recent laboratory results show a slight decrease in potassium. The physician has opted to forego drug therapy but has suggested increasing the patient's dietary intake of potassium. Which of the following would be a good source of potassium?
- A. Apples
- B. Asparagus
- C. Carrots
- D. Bananas
Correct answer: D
Rationale: Bananas are an excellent source of potassium. They are a popular choice for increasing dietary potassium intake due to their rich potassium content. Apples, asparagus, and carrots do not contain as high levels of potassium as bananas. While these fruits and vegetables are nutritious, they are not as effective in addressing a potassium deficiency as bananas.
5. .A nurse assesses a clients peripheral IV site, and notices edema and tenderness above the site. Which action should the nurse take next?
- A. Apply cold compresses to the IV site.
- B. Elevate the extremity on a pillow.
- C. Flush the catheter with normal saline.
- D. . Stop the infusion of intravenous fluids.
Correct answer: D
Rationale:
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