HESI RN
HESI Medical Surgical Test Bank
1. Which of the following is most important for assessing when evaluating the effects of peritoneal dialysis?
- A. Serum potassium levels
- B. Blood pressure
- C. Daily weight
- D. Serum sodium levels
Correct answer: C
Rationale: Daily weight is the most crucial parameter to assess when evaluating the effects of peritoneal dialysis because it directly reflects fluid balance. Peritoneal dialysis involves the removal of excess fluid and waste products from the body. Monitoring daily weight enables the healthcare provider to track changes in fluid status, ensuring that the dialysis treatment is effective. While serum potassium levels, blood pressure, and serum sodium levels are important parameters to monitor in patients undergoing dialysis, they are not as directly indicative of the immediate effects of peritoneal dialysis on fluid balance as daily weight.
2. The nurse is caring for a patient whose serum sodium level is 140 mEq/L and serum potassium level is 5.4 mEq/L. The nurse will contact the patient’s provider to discuss an order for
- A. a low-potassium diet.
- B. intravenous sodium bicarbonate.
- C. Kayexalate and sorbitol.
- D. salt substitutes.
Correct answer: A
Rationale: In the scenario presented, the patient is experiencing mild hyperkalemia with a potassium level of 5.4 mEq/L. The appropriate intervention for mild hyperkalemia is a low-potassium diet to restrict potassium intake. This helps in managing and preventing further elevation of potassium levels. Intravenous sodium bicarbonate is not indicated as the patient's sodium level is normal at 140 mEq/L. Kayexalate, a cation-exchange resin, is typically used for severe hyperkalemia to promote potassium excretion. Salt substitutes, which often contain potassium chloride, should be avoided in patients with hyperkalemia as they can exacerbate the condition by increasing potassium levels further.
3. After teaching a client with bacterial cystitis who is prescribed phenazopyridine (Pyridium), the nurse assesses the client’s understanding. Which statement made by the client indicates a correct understanding of the teaching?
- A. I will not take this drug with food or milk.
- B. If I suspect pregnancy, I will discontinue the drug.
- C. An orange color in my urine should not alarm me.
- D. I will consume two glasses of cranberry juice daily.
Correct answer: C
Rationale: The correct answer is C. Phenazopyridine commonly discolors urine to a deep reddish orange, which can be mistaken for blood. It is important for the client to understand that this color change is an expected side effect and should not be a cause for alarm. Additionally, the urine can stain clothing. There are no dietary restrictions or precautions related to food or milk intake while taking phenazopyridine. Stopping the medication if suspecting pregnancy is not necessary as phenazopyridine is safe to use during pregnancy. Drinking cranberry juice is not directly related to the use of phenazopyridine and is not a specific instruction given for managing bacterial cystitis.
4. A client with chronic renal failure is receiving epoetin alfa (Epogen). The nurse should assess the client for which of the following complications?
- A. Hypertension.
- B. Hypotension.
- C. Hyperglycemia.
- D. Edema.
Correct answer: A
Rationale: The correct answer is A: Hypertension. Epoetin alfa (Epogen) is known to increase blood pressure by stimulating red blood cell production. Monitoring for hypertension is crucial to prevent complications such as heart failure or stroke. Choices B, C, and D are incorrect because hypotension, hyperglycemia, and edema are not typically associated with epoetin alfa therapy in clients with chronic renal failure.
5. The provider has ordered Kayexalate and sorbitol to be administered to a patient. The nurse caring for this patient would expect which serum electrolyte values prior to administration of this therapy?
- A. Sodium 125 mEq/L and potassium 2.5 mEq/L
- B. Sodium 150 mEq/L and potassium 3.6 mEq/L
- C. Sodium 135 mEq/L and potassium 6.9 mEq/L
- D. Sodium 148 mEq/L and potassium 5.5 mEq/L
Correct answer: C
Rationale: Severe hyperkalemia, with a potassium level of 6.9 mEq/L, requires aggressive treatment with Kayexalate and sorbitol to increase the body’s excretion of potassium. The normal range for serum potassium is 3.5 to 5.5 mEq/L, so patients with the other potassium levels would not be treated aggressively or would need potassium supplementation. Therefore, option C (Sodium 135 mEq/L and potassium 6.9 mEq/L) is the correct choice as it indicates severe hyperkalemia warranting the administration of Kayexalate and sorbitol. Options A, B, and D have either potassium levels within normal limits, which would not necessitate this aggressive treatment, or potassium levels that are lower than what would typically prompt the need for Kayexalate and sorbitol.
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