HESI RN
HESI 799 RN Exit Exam
1. The nurse needs to add a medication to a liter of 5% Dextrose in Water (D5W) that is already infusing into a client. At what location should the nurse inject the medication?
- A. Medication port
- B. IV drip chamber
- C. Y-site connector
- D. At the hub of the IV catheter
Correct answer: A
Rationale: The correct answer is the medication port. When adding medication to an already infusing IV solution, it should be done through the medication port to ensure direct delivery into the bloodstream without interrupting the primary IV line. Injecting the medication into the IV drip chamber, Y-site connector, or at the hub of the IV catheter can lead to dilution, inaccurate dosing, or potential blockages in the IV line, which can compromise the effectiveness of the medication and patient safety.
2. A client with chronic renal failure (CRF) is placed on a protein-restricted diet. Which nutritional goal supports this dietary change?
- A. Reduce production of urea nitrogen (BUN)
- B. Decrease the risk of hyperkalemia
- C. Promote healing of injured nephrons
- D. Promote the elimination of albumin
Correct answer: A
Rationale: The correct answer is A: Reduce production of urea nitrogen (BUN). A protein-restricted diet is essential for clients with chronic renal failure to decrease the production of urea nitrogen, as the kidneys cannot effectively excrete it. This helps in managing the accumulation of waste products in the body. Choices B, C, and D are incorrect. Choice B is not directly related to a protein-restricted diet but focuses on managing potassium levels. Choice C is not a direct nutritional goal of a protein-restricted diet but aims at supporting kidney function. Choice D is not a target of a protein-restricted diet but relates more to managing protein loss in the urine.
3. The nurse is assessing a client with chronic kidney disease (CKD) who is receiving erythropoietin therapy. Which laboratory value should the nurse monitor closely?
- A. Serum potassium level
- B. Hemoglobin level
- C. White blood cell count
- D. Serum calcium level
Correct answer: A
Rationale: In a client with chronic kidney disease (CKD) receiving erythropoietin therapy, the nurse should closely monitor the serum potassium level. Erythropoietin therapy can increase red blood cell production, leading to a higher demand for potassium. Monitoring potassium levels is crucial to prevent hyperkalemia, a potential risk associated with this therapy. Hemoglobin level (Choice B) is important to assess the effectiveness of erythropoietin therapy, but monitoring potassium levels takes precedence due to the risk of hyperkalemia. White blood cell count (Choice C) and serum calcium level (Choice D) are not directly affected by erythropoietin therapy in the context of chronic kidney disease.
4. An adult client comes to the clinic and reports his concern over a lump that 'just popped up on my neck about a week ago.' In performing an examination of the lump, the nurse palpates a large, non-tender, hardened left subclavian lymph node. There is no overlying tissue inflammation. What do these findings suggest?
- A. Malignancy
- B. Infection
- C. Benign cyst
- D. Lymphadenitis
Correct answer: A
Rationale: The findings of a large, non-tender, hardened lymph node, especially in the absence of overlying tissue inflammation, are indicative of malignancy. These characteristics raise suspicion for cancer, prompting the need for further investigation. Choice B, Infection, is incorrect because infection would typically present as a tender and possibly swollen lymph node. Choice C, Benign cyst, is incorrect as cysts are usually soft and movable. Choice D, Lymphadenitis, is incorrect as lymphadenitis usually presents with tender and enlarged lymph nodes in response to an infection.
5. The nurse is caring for a client with chronic kidney disease (CKD) who is receiving erythropoietin therapy. Which laboratory value requires immediate intervention?
- A. Serum potassium of 5.5 mEq/L
- B. Serum creatinine of 2.5 mg/dL
- C. Hemoglobin of 10 g/dL
- D. White blood cell count of 10,000/mm³
Correct answer: A
Rationale: A serum potassium level of 5.5 mEq/L is most concerning in a client receiving erythropoietin therapy as it indicates hyperkalemia, requiring immediate intervention. High potassium levels can lead to severe cardiac arrhythmias and must be addressed promptly. The other laboratory values, though abnormal, do not present immediate life-threatening risks as hyperkalemia does.
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