HESI LPN
HESI CAT Exam 2022
1. When caring for a client with acute respiratory distress syndrome (ARDS), why does the nurse elevate the head of the bed 30 degrees?
- A. To reduce abdominal pressure on the diaphragm
- B. To promote retraction of the intercostal accessory muscles of respiration
- C. To promote bronchodilation and effective airway clearance
- D. To decrease pressure on the medullary center which stimulates breathing
Correct answer: A
Rationale: Elevating the head of the bed to 30 degrees is done to reduce abdominal pressure on the diaphragm, aiding in lung expansion and oxygenation. This position helps improve respiratory mechanics by allowing the diaphragm to move more effectively. Choice B is incorrect as elevating the head of the bed does not directly promote retraction of the intercostal accessory muscles of respiration. Choice C is incorrect because although elevating the head of the bed can assist with airway clearance, its primary purpose in ARDS is to decrease pressure on the diaphragm. Choice D is incorrect because reducing pressure on the medullary center is not the main goal of elevating the head of the bed; the focus is on enhancing lung function and oxygen exchange.
2. After receiving a report on an inpatient acute care unit, which client should the nurse assess first?
- A. The client with bowel obstruction due to a volvulus who is experiencing abdominal rigidity
- B. The client who had surgery yesterday and is experiencing a paralytic ileus with absent bowel sounds
- C. The client with an obstruction of the large intestine who is experiencing abdominal distention
- D. The client with a small bowel obstruction who has a nasogastric tube that is draining greenish fluid
Correct answer: A
Rationale: The correct answer is A. Abdominal rigidity in a client with bowel obstruction due to a volvulus indicates possible complications and requires immediate assessment. Choice B is incorrect because although a paralytic ileus with absent bowel sounds is concerning, abdominal rigidity in a client with a volvulus takes priority. Choice C is incorrect as abdominal distention, though indicative of an obstruction, is not as urgent as the sign of abdominal rigidity. Choice D is incorrect as the drainage of greenish fluid from a nasogastric tube in a client with a small bowel obstruction, while concerning, does not present as immediate a threat as the abdominal rigidity in a client with a volvulus.
3. After a motor vehicle collision, a client is admitted to the medical unit with acute adrenal insufficiency (Addisonian crisis). Which prescription should the nurse implement?
- A. Determine serum glucose levels
- B. Withhold potassium additives to IV fluids
- C. Give IV corticosteroid replacement
- D. Prepare to initiate IV vasopressors
Correct answer: C
Rationale: In a client with acute adrenal insufficiency (Addisonian crisis) following a motor vehicle collision, the priority intervention is to administer IV corticosteroid replacement. This is crucial to manage the crisis by replacing the deficient cortisol. Determining serum glucose levels (Choice A) may be important but is not the immediate priority in this situation. Withholding potassium additives to IV fluids (Choice B) is not indicated and may exacerbate electrolyte imbalances. Initiating IV vasopressors (Choice D) is not the primary treatment for acute adrenal insufficiency and should be reserved for managing hypotension that is unresponsive to corticosteroid therapy.
4. A female client with fibromyalgia asks the nurse to arrange for hospice care to help her manage the severe, chronic pain. Which interdisciplinary team member should the nurse consult to assist the client?
- A. Contact a hospice nurse for an evaluation
- B. Arrange an appointment with a pain specialist
- C. Ask for a consultation with a psychologist
- D. Form an interdisciplinary team for evaluation
Correct answer: A
Rationale: In this scenario, the most appropriate interdisciplinary team member for the nurse to consult is a hospice nurse. Hospice nurses specialize in managing pain and symptom control, which aligns with the client's needs for managing severe chronic pain. While pain specialists (choice B) focus on pain management, in this case, the client specifically requested hospice care for pain management. Consulting a psychologist (choice C) may be beneficial for addressing psychological aspects, but the client's immediate need is pain management. Forming an interdisciplinary team (choice D) is not as specific as consulting a hospice nurse, who has the specialized skills required to address the client's pain effectively.
5. What intervention should the nurse implement during the administration of a vesicant chemotherapeutic agent via an IV site in the client's arm?
- A. Assess IV site frequently for signs of extravasation
- B. Monitor capillary refill distal to the infusion site
- C. Apply a topical anesthetic at the infusion site for burning
- D. Explain that temporary burning at the IV site may occur
Correct answer: A
Rationale: The correct intervention the nurse should implement during the administration of a vesicant chemotherapeutic agent via an IV site in the client's arm is to assess the IV site frequently for signs of extravasation. Vesicants are agents that can cause tissue damage if they leak into the surrounding tissues. Monitoring for signs of extravasation such as swelling, pain, or redness is crucial to prevent tissue damage and ensure prompt intervention if extravasation occurs. Choices B, C, and D are incorrect because monitoring capillary refill, applying a topical anesthetic for burning, and explaining temporary burning do not directly address the risk of extravasation associated with vesicant chemotherapeutic agents.
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