HESI LPN
CAT Exam Practice Test
1. An adult suffered burns to the face and chest resulting from a grease fire. On admission, the client was intubated, and a 2-liter bolus of normal saline was administered IV. Currently, the normal saline is infusing at 250 ml/hour. The client’s heart rate is 120 beats/minute, blood pressure is 90/50 mmHg, respirations are 12 breaths/minute over the ventilated 12 breaths for a total of 24 breaths/minute, and the central venous pressure (CVP) is 4 mm H2O. Which intervention should the nurse implement?
- A. Increase the rate of normal saline infusion
- B. Infuse an additional bolus of normal saline
- C. Lower the head of the bed to a recumbent position
- D. Bring a tracheostomy tray to the bedside
Correct answer: B
Rationale: The correct intervention is to infuse an additional bolus of normal saline. The client's presentation with a heart rate of 120 beats/minute, hypotensive blood pressure of 90/50 mmHg, and low CVP of 4 mm H2O indicates hypovolemic shock. Administering more normal saline can help in restoring intravascular volume and improving perfusion. Increasing the rate of normal saline infusion (Choice A) is not the best choice as it may lead to fluid overload. Lowering the head of the bed to a recumbent position (Choice C) could worsen hypotension by reducing venous return. Bringing a tracheostomy tray to the bedside (Choice D) is not a priority at this time as the client is already intubated, and the immediate concern is addressing the hypovolemia.
2. Several months after a foot injury, an adult woman is diagnosed with neuropathic pain. The client describes the pain as severe and burning and is unable to put weight on her foot. She asks the nurse when the pain will 'finally go away.' How should the nurse respond?
- A. Explain that healing from the injury can take many months.
- B. Assist the client in developing a goal of managing the pain.
- C. Encourage the client to verbalize her fears about the pain.
- D. Complete an assessment of the client’s functional ability.
Correct answer: B
Rationale: The correct answer is B: 'Assist the client in developing a goal of managing the pain.' In cases of chronic neuropathic pain, complete resolution is often not achievable. Therefore, the most appropriate approach is to help the client develop strategies to manage the pain effectively. Choice A is incorrect because it may give false hope of immediate resolution, which is unlikely with neuropathic pain. Choice C is incorrect as it does not directly address the client's need for pain management. Choice D is incorrect as it focuses on functional ability assessment, which is not the priority when addressing the client's pain concerns.
3. A client receives a prescription for acetylcysteine (Mucomyst) 1.4 grams per nasogastric tube q4 hours. Acetylcysteine is available as a 10% solution (10 grams/100ml). How many ml of the 10% solution should the nurse administer per dose?
- A. 7
- B. 10
- C. 14
- D. 1.4 grams of acetylcysteine is equivalent to 14 ml of a 10% solution.
Correct answer: D
Rationale: To determine the amount of the 10% acetylcysteine solution to administer, convert the 1.4 grams to milligrams (1.4 grams = 1400 mg). Then, as the 10% solution contains 10 grams (10,000 mg) per 100 ml, it means there are 1000 mg of acetylcysteine in every 10 ml of the solution (10,000 mg / 100 ml = 100 mg/ml). Therefore, to administer 1400 mg (1.4 grams) of acetylcysteine, the nurse should give 14 ml of the 10% solution. Choices A, B, and C are incorrect as they do not accurately convert the amount of acetylcysteine to the corresponding volume of the 10% solution.
4. A 14-year-old male client with a spinal cord injury (SCI) at T-10 is admitted for rehabilitation. During the morning assessment, the nurse determines that the adolescent's face is flushed, his forehead is sweating, his heart rate is 54 beats/min, and his blood pressure is 198/118. What action should the nurse implement first?
- A. Determine if the urinary bladder is distended
- B. Irrigate the indwelling urinary catheter
- C. Review the temperature graph for the last day
- D. Administer an antihypertensive agent
Correct answer: A
Rationale: Autonomic dysreflexia is a potentially life-threatening emergency that can be triggered by a distended bladder in clients with spinal cord injuries at T-6 or above. The priority action is to determine if the urinary bladder is distended as this could be the cause of the symptoms observed in the adolescent. Flushing, sweating, bradycardia, and severe hypertension are classic signs of autonomic dysreflexia. Irrigating the urinary catheter, reviewing temperature graphs, or administering an antihypertensive agent are not the initial actions to take when suspecting autonomic dysreflexia.
5. When planning to contact the healthcare provider about a client's need for a belt restraint, what information is most important to report?
- A. The presence and location of any pressure ulcers.
- B. Measures already taken to maintain client safety.
- C. Any special mattresses on the client’s bed.
- D. Current vital signs and oxygen saturation.
Correct answer: B
Rationale: The correct answer is B. When reporting to the healthcare provider about a client's need for a belt restraint, it is crucial to provide information on the measures already taken to maintain client safety. This includes detailing alternative strategies that have been tried before considering restraint use. This information helps the healthcare provider assess the situation comprehensively and explore other safety interventions. Choices A, C, and D, though relevant to the client's care, are not as critical to report when discussing the need for a belt restraint. Pressure ulcers (Choice A) are important but not directly related to the need for a belt restraint. The presence of special mattresses (Choice C) may influence overall care but is not the most pertinent information when considering restraints. Current vital signs and oxygen saturation (Choice D) are essential for the client's overall assessment but do not directly address the need for a belt restraint.
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