HESI LPN
CAT Exam Practice Test
1. A 70-year-old client is admitted to the hospital after 24 hours of acute diarrhea. To determine fluid status, which initial data is most important for the nurse to obtain?
- A. Usual and current weight
- B. Color and amount of urine
- C. Number and frequency of stools
- D. Intake and output 24 hours prior to admission
Correct answer: A
Rationale: The correct answer is A: Usual and current weight. Weight changes are the most direct indicator of fluid status in a patient with acute diarrhea. Monitoring weight loss or gain can provide crucial information about fluid balance. Option B, color and amount of urine, though important for assessing renal function, is not as direct an indicator of fluid status as weight. Option C, number and frequency of stools, is relevant for assessing the severity of diarrhea but does not provide direct information on fluid status. Option D, intake and output 24 hours prior to admission, does not reflect the current fluid status and may not be accurate in a rapidly changing condition like acute diarrhea.
2. A 20-year-old male client is diagnosed with Ewing’s sarcoma following an examination for a knee injury. Which instruction is most important for the nurse to provide the client?
- A. Take analgesics regularly to manage pain
- B. Notify the healthcare provider if the swelling worsens
- C. Avoid weight-bearing on the affected knee until the injury heals
- D. Seek treatment for the sarcoma immediately
Correct answer: D
Rationale: The most crucial instruction for the nurse to provide the client is to seek treatment for the sarcoma immediately. Ewing's sarcoma is a type of cancer that necessitates prompt and aggressive treatment for the best possible outcome. While managing pain (Choice A) and monitoring swelling (Choice B) are important, addressing the underlying sarcoma is the priority. Instructing the client to avoid weight-bearing (Choice C) is not directly related to the treatment of Ewing's sarcoma and may not be the most critical instruction at this point.
3. When admitting a client diagnosed with active tuberculosis to isolation, which infection control measures should the nurse implement?
- A. Negative pressure environment
- B. Contact precautions
- C. Droplet precautions
- D. Protective environment
Correct answer: A
Rationale: The correct answer is A: Negative pressure environment. Tuberculosis is transmitted through airborne particles, so a negative pressure room is essential to prevent the spread of the bacteria. Choice B, contact precautions, are used for infections spread by direct or indirect contact, not for tuberculosis. Choice C, droplet precautions, are for infections transmitted through respiratory droplets, not airborne particles like tuberculosis. Choice D, protective environment, is used for protecting immunocompromised patients from outside pathogens, not for preventing the spread of tuberculosis.
4. When caring for a client with Cushing syndrome, which serum laboratory value is most important for the nurse to monitor?
- A. Lactate
- B. Glucose
- C. Hemoglobin
- D. Creatinine
Correct answer: B
Rationale: When caring for a client with Cushing syndrome, monitoring glucose levels is crucial as Cushing syndrome often leads to hyperglycemia. Elevated glucose levels are a common manifestation of Cushing syndrome due to increased cortisol levels. Monitoring glucose helps in assessing and managing the client's condition effectively. Lactate levels are not typically affected by Cushing syndrome. Hemoglobin and creatinine levels are important for other conditions like anemia and kidney function, but they are not the priority in Cushing syndrome.
5. 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.
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