HESI LPN
CAT Exam Practice Test
1. When should the nurse conduct an Allen’s test?
- A. When obtaining pulmonary artery pressures
- B. To assess for the presence of a deep vein thrombus in the leg
- C. Just before arterial blood gases are drawn peripherally
- D. Prior to attempting a cardiac output calculation
Correct answer: C
Rationale: The correct time to conduct an Allen’s test is just before arterial blood gases are drawn peripherally. This test is performed to assess the adequacy of collateral circulation in the hand before obtaining arterial blood gases. Choice A is incorrect because an Allen’s test is not specifically done when obtaining pulmonary artery pressures. Choice B is incorrect because an Allen’s test is not used to assess deep vein thrombosis. Choice D is incorrect because an Allen’s test is not done specifically before attempting a cardiac output calculation.
2. The nursing staff on a medical unit includes a registered nurse (RN), practical nurse (PN), and an unlicensed assistive personnel (UAP). Which task should the charge nurse assign to the RN?
- A. Transport a client who is receiving IV fluid to the radiology department
- B. Administer PRN oral analgesics to a client with a history of chronic pain
- C. Supervise a newly hired graduate nurse during an admission assessment
- D. Complete ongoing focused assessments of a client with wrist restraints
Correct answer: C
Rationale: The correct answer is C because supervising a newly hired graduate nurse during an admission assessment is a task that falls within the registered nurse's scope of practice. Registered nurses are responsible for overseeing and delegating tasks, especially to new staff, to ensure proper assessment and care delivery. Choices A, B, and D involve tasks that can be appropriately assigned to practical nurses or unlicensed assistive personnel as they are within their scope of practice. Transporting a client, administering oral analgesics, and completing focused assessments do not require the advanced knowledge and skills of a registered nurse.
3. An older male was recently admitted to the rehabilitation unit with unilateral neglect syndrome as a result of a cerebrovascular accident (CVA). Which action should the nurse include in the plan of care?
- A. Provide additional light in the room to promote sensory stimulation
- B. Teach the client to turn his head from side to side for visual scanning
- C. Place a clock and calendar in the room to improve orientation
- D. Use hand and arm gestures to improve communication and comprehension
Correct answer: B
Rationale: Teaching the client to turn his head from side to side for visual scanning is essential in addressing unilateral neglect syndrome caused by a cerebrovascular accident. This action helps improve visual awareness and assists the client in overcoming the neglect of one side of the body. Providing additional light for sensory stimulation (Choice A) may not directly address the issue of unilateral neglect. Placing a clock and calendar in the room (Choice C) may be helpful for orientation but does not specifically target unilateral neglect. Using hand and arm gestures for communication (Choice D) may aid in communication but does not directly address the visual scanning deficits associated with unilateral neglect syndrome.
4. The parents of a 6-year-old recently diagnosed with asthma should be taught that the symptom of acute episodes of asthma is due to which physiological response?
- A. Inflammation of the mucous membrane & bronchospasm
- B. Increased mucus production and bronchoconstriction
- C. Allergic reactions and hyperventilation
- D. Airway narrowing and decreased lung capacity
Correct answer: A
Rationale: The correct answer is A: Inflammation of the mucous membrane & bronchospasm. Acute asthma episodes are primarily caused by inflammation of the airways and bronchospasm, which lead to airway obstruction. Increased mucus production and bronchoconstriction (Choice B) are part of the physiological responses in asthma but do not directly cause acute episodes. Allergic reactions and hyperventilation (Choice C) are related to asthma triggers and responses but are not the direct causes of acute episodes. Airway narrowing and decreased lung capacity (Choice D) are consequences of inflammation and bronchospasm but do not explain the physiological response leading to acute asthma episodes.
5. Following a thyroidectomy, a client experiences tetany. The nurse should expect to administer which intravenous medication?
- A. Sodium iodide solution
- B. Levothyroxine sodium (Synthroid)
- C. Calcium gluconate
- D. Propranolol (Inderal)
Correct answer: C
Rationale: Following a thyroidectomy, tetany can occur due to hypoparathyroidism, leading to low calcium levels. Therefore, the nurse should administer calcium gluconate intravenously to raise the calcium levels. Choice A, Sodium iodide solution, is incorrect as it is used for thyroid conditions, not for treating tetany. Choice B, Levothyroxine sodium (Synthroid), is incorrect as it is a thyroid hormone replacement and does not address low calcium levels. Choice D, Propranolol (Inderal), is incorrect as it is a beta-blocker used for conditions like hypertension and not indicated for tetany after thyroidectomy.
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