HESI RN
HESI Fundamentals
1. The healthcare provider attaches a pulse oximeter to a client's fingers and obtains an oxygen saturation reading of 91%. Which assessment finding most likely contributes to this reading?
- A. BP 142/88 mmHg
- B. 2+ edema of fingers and hands
- C. Radial pulse volume is +3
- D. Capillary refill time is 2 seconds
Correct answer: B
Rationale: Edema in the fingers and hands can impede the proper functioning of the pulse oximeter, leading to a falsely low oxygen saturation reading. Edema alters the transmission of light through the tissues, affecting the accuracy of the measurement. Therefore, the presence of edema in the fingers and hands is the most likely factor contributing to the low oxygen saturation reading of 91%.
2. The nurse determines that a postoperative client's respiratory rate has increased from 18 to 24 breaths/min. Based on this assessment finding, which intervention is most important for the nurse to implement?
- A. Encourage the client to increase ambulation in the room.
- B. Offer the client a high-carbohydrate snack for energy.
- C. Force fluids to thin the client's pulmonary secretions.
- D. Determine if pain is causing the client's tachypnea.
Correct answer: D
Rationale: An increased respiratory rate can be a sign of various issues postoperatively, including pain. Assessing and managing pain is crucial as it can lead to tachypnea. Pain, anxiety, and fluid accumulation in the lungs can all contribute to an increased respiratory rate. Therefore, determining if pain is causing the tachypnea is the most important intervention to address the underlying cause. Encouraging ambulation, offering snacks, or forcing fluids are not the priority in this situation as pain assessment takes precedence in managing the increased respiratory rate.
3. The client has removed the covering from an ice pack applied to his knee. What action should the nurse take first?
- A. Observe the appearance of the skin under the ice pack.
- B. Instruct the client regarding the importance of the covering.
- C. Reapply the covering after filling it with fresh ice.
- D. Ask the client how long the ice pack was applied to the skin.
Correct answer: A
Rationale: The primary action for the nurse is to assess the skin under the ice pack to check for any potential thermal injury. This assessment is crucial to ensure the client's safety. Once the skin assessment is done and no harm is found, the nurse can proceed with other necessary actions such as providing instructions to the client or replacing the covering with fresh ice.
4. Which intervention is most important to include in the plan of care for a client at high risk for the development of postoperative thrombus formation?
- A. Instruct the client in the use of the incentive spirometer.
- B. Elevate the head of the bed during all meals.
- C. Use aseptic technique when changing the dressing.
- D. Encourage frequent ambulation in the hallway.
Correct answer: D
Rationale: Thrombus formation is a risk for clients who are immobile postoperatively. Encouraging frequent ambulation helps to prevent stasis in the lower extremities, reducing the risk of thrombus formation. This intervention promotes circulation and prevents blood clot formation, making it the most important intervention in this situation.
5. The healthcare provider is caring for a client diagnosed with type 2 diabetes mellitus. Which intervention should the healthcare provider implement to assess the client’s glycemic control?
- A. Monitor fasting blood glucose levels
- B. Check urine for ketones
- C. Evaluate hemoglobin A1c levels
- D. Assess the client’s dietary intake
Correct answer: C
Rationale: Evaluating hemoglobin A1c levels is the most appropriate intervention to assess glycemic control in a client with type 2 diabetes mellitus. Hemoglobin A1c levels reflect the average blood glucose control over the past 2-3 months, providing valuable information for monitoring and managing diabetes. Monitoring fasting blood glucose levels (Choice A) is important for daily management but does not provide a long-term view like hemoglobin A1c. Checking urine for ketones (Choice B) is more relevant for assessing diabetic ketoacidosis. Assessing dietary intake (Choice D) is crucial for overall diabetes management but does not directly assess glycemic control.
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