HESI RN
HESI Medical Surgical Assignment Exam
1. A client without a history of respiratory disease has a pulse oximeter in place after surgery. The nurse monitors the pulse oximeter readings to ensure that oxygen saturation remains above:
- A. 85%
- B. 89%
- C. 95%
- D. 100%
Correct answer: C
Rationale: Pulse oximetry is a noninvasive method of continuously monitoring the oxygen saturation of hemoglobin (SaO2). In the absence of underlying respiratory disease, the expected oxygen saturation level is at least 95%. Oxygen saturation levels below 95% may indicate hypoxemia, which can compromise tissue perfusion and oxygen delivery to vital organs. Therefore, maintaining oxygen saturation above 95% is crucial to ensure adequate oxygenation post-surgery. Choices A, B, and D are incorrect as they represent oxygen saturation levels that are below the expected value for a client without a history of respiratory disease, which should be at least 95%.
2. Upon arrival of a client transferred to the surgical unit, what should the nurse plan to do first?
- A. Assess the patency of the airway
- B. Check tubes and drains for patency
- C. Check the dressing for bleeding
- D. Assess the vital signs to compare them with preoperative measurements
Correct answer: A
Rationale: The initial action for the nurse upon the arrival of a client to the surgical unit is to assess the patency of the airway. This step takes priority to ensure that the client has a clear airway for adequate breathing. Checking tubes and drains for patency, inspecting the dressing for bleeding, and assessing vital signs to compare with preoperative measurements are important subsequent steps in the assessment process. However, ensuring the airway is patent is the immediate priority to maintain the client's respiratory function and overall well-being.
3. 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.
4. 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.
5. After the administration of t-PA, what should the nurse do?
- A. Observe the client for chest pain.
- B. Monitor for fever.
- C. Review the 12-lead electrocardiogram (ECG).
- D. Auscultate breath sounds.
Correct answer: A
Rationale: After the administration of t-PA, the nurse should observe the client for chest pain. Chest pain post t-PA administration could indicate reocclusion of the coronary artery, a serious complication that requires immediate intervention. Monitoring for fever (choice B) is not specifically associated with t-PA administration. While reviewing the 12-lead ECG (choice C) is important for assessing cardiac function, it may not be the immediate priority right after t-PA administration. Auscultating breath sounds (choice D) is important for assessing respiratory status but is not the most crucial assessment following t-PA administration.
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