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. 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.
3. During a clinic visit, the mother of a 7-year-old reports to the nurse that her child is often awake until midnight playing and is then very difficult to awaken in the morning for school. Which assessment data should the nurse obtain in response to the mother's report?
- A. The occurrence of any episodes of sleep apnea
- B. The child's blood pressure, pulse, and respirations
- C. Length of rapid eye movement (REM) sleep that the child is experiencing
- D. Description of the family's home environment
Correct answer: D
Rationale: In response to the mother's report, the nurse should assess the family's home environment first to identify any factors that may hinder the establishment of bedtime routines conducive to sleep. Factors such as noise, light, distractions, or other environmental aspects could be contributing to the child's difficulty falling asleep at a reasonable hour and waking up in the morning.
4. The healthcare professional is monitoring a client receiving IV potassium chloride. Which assessment finding should prompt the healthcare professional to immediately stop the infusion?
- A. The client reports pain at the IV site
- B. The client’s heart rate is irregular
- C. The client has swelling at the IV site
- D. The client’s blood pressure is elevated
Correct answer: B
Rationale: An irregular heart rate is a critical sign of hyperkalemia, a serious condition that can lead to life-threatening cardiac arrhythmias. Stopping the infusion promptly is crucial to prevent further complications. The healthcare professional should inform the healthcare provider immediately for further evaluation and management. Choice A is incorrect because pain at the IV site is common and may not necessitate stopping the infusion. Choice C is incorrect as swelling at the IV site may indicate a local reaction but is not a reason to stop the infusion. Choice D is incorrect as an elevated blood pressure alone is not a direct indication to stop the infusion of IV potassium chloride.
5. The client has a chest tube. What is the most important action for the nurse to take?
- A. Ensure the chest tube remains unclamped at all times.
- B. Empty the chest tube every 2 hours.
- C. Keep the drainage system below the level of the chest.
- D. Assess for subcutaneous emphysema.
Correct answer: C
Rationale: Keeping the drainage system below the level of the chest (C) is crucial to ensure proper drainage and prevent backflow of air or fluid into the chest cavity. This position helps maintain the integrity of the closed drainage system. Ensuring the chest tube remains unclamped at all times (A) allows for continuous drainage. Emptying the chest tube (B) should be done as needed, not routinely every 2 hours. Assessing for subcutaneous emphysema (D) is important but not the most critical action in this scenario.
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