HESI RN
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1. A client with acute kidney injury (AKI) weighing 50kg and having a potassium level of 6.7mEq/L (6.7mmol/L) is admitted to the hospital. Which prescribed medication should the nurse administer first?
- A. Calcium acetate, one tablet by mouth
- B. Sodium polystyrene sulfonate, 15 grams by mouth
- C. Epoetin Alfa, recombinant, 2,500 units subcutaneously
- D. Sevelamer, one tablet by mouth
Correct answer: B
Rationale: In a client with acute kidney injury (AKI) and hyperkalemia, the priority intervention is to lower the potassium level swiftly. Sodium polystyrene sulfonate is a medication used to treat hyperkalemia by exchanging sodium ions for potassium ions in the intestines, reducing the overall potassium levels. Calcium acetate, epoetin alfa, and sevelamer are not indicated for the immediate reduction of potassium levels in hyperkalemia. Calcium acetate is used to control phosphate levels, epoetin alfa is a medication to treat anemia by stimulating red blood cell production, and sevelamer is a phosphate binder used in chronic kidney disease to reduce phosphate levels.
2. A client with bladder cancer who underwent a complete cystectomy with ileal conduit is being assessed by a nurse. Which assessment finding should prompt the nurse to urgently contact the healthcare provider?
- A. The ileostomy is draining blood-tinged urine.
- B. There is serous sanguineous drainage on the surgical dressing.
- C. The ileostomy stoma appears pale and cyanotic.
- D. Oxygen saturations are 92% on room air.
Correct answer: C
Rationale: A pale or cyanotic appearance of the ileostomy stoma indicates compromised circulation, which can lead to necrosis if not promptly addressed. On the other hand, blood-tinged urine and serous sanguineous drainage are common following a complete cystectomy with ileal conduit. These findings do not typically indicate an urgent issue. An oxygen saturation of 92% on room air is slightly below the normal range but does not warrant urgent healthcare provider contact unless accompanied by significant respiratory distress or other concerning symptoms.
3. A young adult client, admitted to the Emergency Department following a motor vehicle collision, is transfused with 4 units of PRBCs (packed red blood cells). The client's pretransfusion hematocrit is 17%. Which hematocrit value should the nurse expect the client to have after all the PRBCs have been transfused?
- A. 0.19
- B. 0.09
- C. 0.39
- D. 0.29
Correct answer: D
Rationale: The expected increase in hematocrit after transfusion is approximately 3% per unit of PRBCs. Since the client received 4 units, the expected increase would be 4 x 3% = 12%. Therefore, adding this to the pretransfusion hematocrit of 17% would result in an expected post-transfusion hematocrit of 29%. Choice A (0.19) is incorrect as it doesn't consider the incremental increase per unit of PRBCs. Choices B (0.09) and C (0.39) are also incorrect as they do not align with the expected increase in hematocrit following the transfusion of 4 units of PRBCs.
4. After a client with peripheral vascular disease undergoes a right femoral-popliteal bypass graft, their blood pressure drops from 124/80 to 94/62. What should the nurse assess first?
- A. IV fluid infusion.
- B. Pedal pulses.
- C. Nasal cannula oxygen flow rate.
- D. Capillary refill time.
Correct answer: B
Rationale: Assessing pedal pulses is crucial in this situation as it helps determine the adequacy of perfusion to the lower extremity following a bypass graft. A decrease in blood pressure postoperatively could indicate decreased perfusion, making the assessment of pedal pulses a priority to ensure proper circulation. Checking IV fluid infusion, nasal cannula oxygen flow rate, or capillary refill time are not the immediate priorities in this scenario and would not provide direct information about perfusion to the affected extremity.
5. The client with chronic renal failure is receiving education on managing fluid intake. Which of the following statements by the client indicates a need for further teaching?
- A. I can drink as much water as I want.
- B. I should increase my intake of high-sodium foods.
- C. I can skip a dialysis session if I feel tired.
- D. I can eat whatever I want as long as I take my medications.
Correct answer: C
Rationale: Choice C is the correct answer. Clients with chronic renal failure should not skip dialysis sessions, as this can lead to serious complications. Dialysis is crucial for managing fluid and electrolyte balance in these clients. Choice A is incorrect because clients with renal failure often have fluid restrictions. Choice B is incorrect as high-sodium foods can worsen fluid retention in clients with renal failure. Choice D is incorrect because dietary restrictions are important in managing chronic renal failure, and eating whatever one wants can lead to further complications.
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