HESI LPN
HESI PN Exit Exam 2023
1. What is the first step in using an automated external defibrillator (AED) on a patient who has collapsed?
- A. Apply the pads to the chest
- B. Turn on the AED and follow the voice prompts
- C. Check the patient's pulse
- D. Ensure the area is clear before delivering a shock
Correct answer: B
Rationale: The correct answer is B: Turn on the AED and follow the voice prompts. This is the first step in using an AED as the device will guide you through the process of analyzing the heart rhythm and delivering a shock if necessary. Choice A, applying the pads to the chest, comes after turning on the AED. Checking the patient's pulse (Choice C) is not necessary before using an AED as the device is specifically designed to assess the need for defibrillation. Ensuring the area is clear (Choice D) is important for safety but is not the initial step in using an AED.
2. What is the function of the enzyme lactase in the digestive system?
- A. Breaks down lactose into glucose and galactose
- B. Breaks down proteins into amino acids
- C. Converts starch into maltose
- D. Breaks down fats into fatty acids
Correct answer: A
Rationale: The correct answer is A: 'Breaks down lactose into glucose and galactose.' Lactase is an enzyme in the small intestine that specifically breaks down lactose, the sugar found in milk, into glucose and galactose for absorption. Choice B is incorrect because proteins are broken down into amino acids by protease enzymes. Choice C is incorrect because the enzyme amylase converts starch into maltose. Choice D is incorrect as lipase enzymes break down fats into fatty acids.
3. A client who is at full-term gestation is in active labor and complains of a cramp in her leg. Which intervention should the PN implement?
- A. Massage the calf and foot
- B. Elevate the leg above the heart
- C. Check the pedal pulse in the affected leg
- D. Extend the leg and flex the foot
Correct answer: D
Rationale: During labor, muscle cramps are common due to prolonged muscle tension. The correct intervention to alleviate a cramp in the leg is to extend the leg and flex the foot. This action helps relieve the muscle spasm by stretching and contracting the muscles. Massaging the calf and foot (Choice A) may not be as effective in relieving the cramp as extending and flexing the leg. Elevating the leg above the heart (Choice B) is not necessary and may not directly address the cramp. Checking the pedal pulse (Choice C) is important for assessing circulation, but it does not directly address the muscle cramp.
4. A client reports being able to swallow only small bites of solid food and liquids for the last 3 months. The PN should assess the client for what additional information?
- A. Past traumatic injury to the neck
- B. Daily consumption of hot beverages
- C. History of alcohol or tobacco use
- D. Daily dietary intake of roughage
Correct answer: C
Rationale: The correct answer is C: History of alcohol or tobacco use. A history of alcohol or tobacco use is significant as both are risk factors for esophageal cancer or other esophageal disorders that could cause difficulty swallowing (dysphagia). This information helps in evaluating the underlying cause of the symptom. Choices A, B, and D are less relevant in this context. While a past traumatic injury to the neck could potentially cause swallowing difficulties, given the chronic nature of the symptom in this case, it is more important to focus on potential risk factors associated with esophageal disorders like alcohol and tobacco use. Daily consumption of hot beverages and daily dietary intake of roughage are less likely to be directly related to the client's current swallowing issue.
5. The PN administered darbepoetin alfa to a client with chronic kidney disease (CKD). Which serum laboratory value should the PN monitor to assess the effectiveness of this drug?
- A. Calcium
- B. Phosphorus
- C. Hemoglobin
- D. White blood cell count
Correct answer: C
Rationale: Darbepoetin alfa is used to stimulate red blood cell production in clients with CKD. Monitoring hemoglobin levels is essential to assess the effectiveness of the treatment and to adjust the dosage to avoid complications such as hypertension or thrombosis. Monitoring calcium (Choice A), phosphorus (Choice B), or white blood cell count (Choice D) is not directly related to the effectiveness of darbepoetin alfa in treating anemia associated with CKD.
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