HESI RN
HESI Fundamentals Practice Exam
1. After surgery, a patient has decreased cardiac output. What is a likely observation by the nurse?
- A. Decreased urine output
- B. Increased urine output
- C. Flushing of the skin
- D. Hyperventilation
Correct answer: A
Rationale: A decrease in cardiac output can lead to decreased blood flow to the kidneys, resulting in decreased urine output. The kidneys rely on adequate blood supply to filter waste and produce urine. Therefore, a decreased urine output is a common observation when cardiac output is reduced. Choices B, C, and D are incorrect. Increased urine output is not typically associated with decreased cardiac output; flushing of the skin is more related to vasodilation, and hyperventilation is not directly linked to decreased cardiac output.
2. When assisting an older adult client in preparing to take a tub bath, which nursing action is most important?
- A. Check the bath water temperature.
- B. Shut the bathroom door.
- C. Ensure that the client has voided.
- D. Provide extra towels.
Correct answer: A
Rationale: The most crucial nursing action when assisting an older adult client with a tub bath is to check the bath water temperature. This step is essential to prevent burns from hot water or chilling from water that is too cold. Ensuring the water temperature is safe is a critical aspect of promoting the client's safety and comfort during the bathing process.
3. Which serum laboratory value should the nurse monitor carefully for a client who has had an NG tube for suctioning for the past week?
- A. White blood cell count
- B. Albumin
- C. Calcium
- D. Sodium
Correct answer: D
Rationale: The nurse should carefully monitor serum sodium levels for a client with an NG tube on suction for an extended period due to potential fluid loss and the risk of developing hyponatremia, an electrolyte imbalance. Hyponatremia can occur as a result of continual suctioning leading to fluid loss, making it crucial to monitor sodium levels to prevent complications associated with low sodium levels. Monitoring white blood cell count, albumin, or calcium is not directly related to the impact of NG tube suction on fluid and electrolyte balance, so these values are not the priority in this scenario.
4. The healthcare provider is providing wound care to a client with a stage 3 pressure ulcer that has a large amount of eschar. The wound care prescription states 'clean the wound and then apply collagenase.' Collagenase is a debriding agent. The prescription does not specify a cleaning method. Which technique should the healthcare provider use to cleanse the pressure ulcer?
- A. Lightly coat the wound with povidone-iodine solution
- B. Irrigate the wound with sterile normal saline
- C. Flush the wound with sterile hydrogen peroxide
- D. Remove the eschar with a wet-to-dry dressing
Correct answer: B
Rationale: The correct technique to cleanse a wound when the prescription does not specify a cleaning method is to irrigate the wound with sterile normal saline. Sterile normal saline is the preferred solution for wound cleaning as it is gentle and does not damage healthy tissues. It helps in removing debris and maintaining a moist environment conducive to healing. Povidone-iodine solution and hydrogen peroxide can be harsh on tissues and delay wound healing. Removing eschar with a wet-to-dry dressing is a mechanical debridement method and should not be done without proper assessment and healthcare provider's order.
5. The nurse observes an unlicensed assistive personnel (UAP) taking a client's blood pressure with a cuff that is too small, but the blood pressure reading obtained is within the client's usual range. What action is most important for the nurse to implement?
- A. Tell the UAP to use a larger cuff at the next scheduled assessment.
- B. Reassess the client's blood pressure using a larger cuff.
- C. Have the unit educator review this procedure with the UAPs.
- D. Teach the UAP the correct technique for assessing blood pressure.
Correct answer: B
Rationale: The most important action is to ensure that an accurate BP reading is obtained. The nurse should reassess the blood pressure with the correct size cuff (B) to obtain an accurate reading. Postponing reassessment (A) could lead to inaccurate results. While (C and D) are important actions for education and quality improvement, they are not as critical as obtaining an accurate blood pressure reading in this situation.
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