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. A client admitted to the intensive care unit with syndrome of inappropriate antidiuretic hormone (SIADH) has developed osmotic demyelination. Which intervention should the nurse implement first?
- A. Patch one eye.
- B. Reorient often.
- C. Range of motion.
- D. Evaluate swallow
Correct answer: B
Rationale: Frequent reorientation is crucial for clients with neurological impairments from osmotic demyelination to prevent confusion and assist with orientation. It helps maintain a proper sense of time, place, and person, reducing disorientation. Patching one eye (Choice A) is not a priority intervention for osmotic demyelination and does not address the immediate need for reorientation. Range of motion exercises (Choice C) may be important for overall care, but reorientation takes precedence due to its impact on neurological functioning. Evaluating swallow (Choice D) is not the primary intervention needed for osmotic demyelination; it is essential but not the first priority.
3. When preparing the client for a thoracentesis, which action is essential for the nurse to take?
- A. Encourage the client to cough during the procedure
- B. Ask the client to void prior to the procedure
- C. Have the client lie in the prone position
- D. Determine if chest x-rays have been completed
Correct answer: B
Rationale: The essential action for the nurse to take when preparing a client for a thoracentesis is to ask the client to void prior to the procedure. This step is crucial as it helps prevent discomfort and reduces the risk of accidental injury. Encouraging the client to cough during the procedure (Choice A) is inappropriate as it can affect the accuracy of the thoracentesis. Having the client lie in the prone position (Choice C) is incorrect; the procedure is typically performed with the client sitting upright or slightly leaning forward. While determining if chest x-rays have been completed (Choice D) is important, ensuring the client has emptied their bladder is more critical for their comfort and safety during the procedure.
4. Which action should the school nurse take first when conducting a screening for scoliosis?
- A. Compare dorsal trunk measurements
- B. Have the individual extend arms over the head for visualization
- C. Inspect for symmetrical shoulder height
- D. Observe weight-bearing on each leg
Correct answer: C
Rationale: Inspecting for symmetrical shoulder height is a crucial initial step in screening for scoliosis. Asymmetry in shoulder height can indicate the presence of spinal curvature, which is a key indicator of scoliosis. This assessment is prioritized as it provides a visual clue to potential spinal abnormalities. Choices A, B, and D are not the first steps in scoliosis screening. Choice A involves a more detailed measurement that is not the primary visual indicator for scoliosis; choice B is not a primary indicator of scoliosis but can be used for further examination, and choice D is not directly related to identifying spinal curvature.
5. The nurse is caring for a group of clients on a surgical unit. Which client should the nurse assess first?
- A. A client who is two days post knee surgery and describes pain at a “4” on a 1 to 10 scale
- B. A client who is one day post bowel resection with no bowel sounds
- C. A client who is 8 hours post appendectomy with urinary output of 480 ml
- D. A client who was admitted with severe abdominal pain and suddenly has no pain
Correct answer: D
Rationale: The correct answer is D. A sudden absence of pain in a client with severe abdominal pain may indicate a serious condition such as internal bleeding. This sudden change in pain status requires immediate assessment to rule out any life-threatening complications. Choices A, B, and C do not indicate an acute change in the client's condition that would necessitate immediate attention compared to sudden pain relief in a client with severe abdominal pain.
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