HESI LPN
CAT Exam Practice Test
1. While changing a client’s chest tube dressing, the nurse notes a crackling sensation when gentle pressure is applied to the skin at the insertion site. What is the best action for the nurse to take?
- A. Apply a pressure dressing around the chest tube insertion site
- B. Assess the client for allergies to topical cleaning agents
- C. Measure the area of swelling and crackling
- D. Administer an oral antihistamine per PRN protocol
Correct answer: A
Rationale: A crackling sensation indicates subcutaneous emphysema, caused by air trapped under the skin. Applying a pressure dressing around the chest tube insertion site can help manage the issue by preventing further air leakage into the tissues. Choice B is incorrect because the crackling sensation is not related to allergies. Choice C is incorrect as measuring the area does not address the underlying cause. Choice D is incorrect as administering an oral antihistamine is not indicated for subcutaneous emphysema.
2. What should the nurse monitor for during the IV infusion of vasopressin (Pitressin) in a client with bleeding esophageal varices?
- A. Vasodilatation of the extremities
- B. Chest pain and dysrhythmia
- C. Hypotension and tachycardia
- D. Decreasing GI cramping and nausea
Correct answer: B
Rationale: During the IV infusion of vasopressin in a client with bleeding esophageal varices, the nurse should monitor for chest pain and dysrhythmia. Vasopressin is a vasoconstrictor that can cause cardiovascular effects, including chest pain and dysrhythmias. Options A, C, and D are incorrect as vasopressin is not expected to cause vasodilatation of the extremities, hypotension, tachycardia, or improvements in GI symptoms such as cramping and nausea.
3. A male client with diabetes mellitus takes NPH/regular 70/30 insulin before meals and azithromycin PO daily, using medication he brought from home. When the nurse delivers his breakfast tray, the client tells the nurse that he took his insulin but forgot to take his daily dose of azithromycin an hour before breakfast as instructed. What action should the nurse implement?
- A. Provide a PRN dose of an antacid to take with the azithromycin right after breakfast
- B. Offer to obtain a new breakfast tray in an hour so the client can take the azithromycin
- C. Instruct the client to eat his breakfast and take the azithromycin two hours after eating
- D. Tell the client to skip that day's dose and resume taking the azithromycin the next day
Correct answer: C
Rationale: Azithromycin should ideally be taken on an empty stomach; however, if taken after breakfast, it should not affect its efficacy. Instructing the client to eat his breakfast and take the azithromycin two hours after eating allows for proper absorption without compromising its effectiveness. Providing an antacid with azithromycin is not necessary in this case. Offering a new breakfast tray in an hour or skipping the dose is not the best course of action as it may lead to missed doses and potential effectiveness issues.
4. 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.
5. A client who had a cerebrovascular accident (CVA) is paralyzed on the left side of the body and has developed a Stage II pressure ulcer on the left hip. Which nursing diagnosis describes this client’s current health status?
- A. Risk for impaired tissue integrity related to impaired physical mobility
- B. Impaired skin integrity related to altered circulation and pressure
- C. Ineffective tissue perfusion related to inability to move self in bed
- D. Impaired physical mobility related to the left-side paralysis
Correct answer: B
Rationale: The correct answer is B: 'Impaired skin integrity related to altered circulation and pressure.' This nursing diagnosis is the most appropriate as it directly addresses the Stage II pressure ulcer on the left hip, which is caused by altered circulation and pressure due to the client's left-side paralysis. Choice A is incorrect because it focuses on the risk for impaired tissue integrity rather than the current issue of impaired skin integrity. Choice C is incorrect as ineffective tissue perfusion is not the primary issue in this scenario. Choice D is incorrect as it only addresses the left-side paralysis and not the pressure ulcer or altered circulation.
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