HESI LPN
CAT Exam Practice
1. A client is admitted to the intensive care unit with diabetes insipidus due to a pituitary gland tumor. Which potential complication should the nurse monitor closely?
- A. Hypokalemia
- B. Ketonuria
- C. Peripheral edema
- D. Elevated blood pressure
Correct answer: A
Rationale: The correct answer is A: Hypokalemia. In diabetes insipidus, there is excessive urination leading to fluid loss, which can result in electrolyte imbalances such as hypokalemia. Monitoring potassium levels is crucial to prevent complications like cardiac arrhythmias. Choices B, C, and D are incorrect. Ketonuria is typically seen in diabetic ketoacidosis, peripheral edema is more commonly associated with conditions like heart failure or kidney disease, and elevated blood pressure is not a direct complication of diabetes insipidus related to a pituitary gland tumor.
2. Diabetes insipidus is the result of:
- A. A diet high in sugar and carbohydrates.
- B. A complicated pregnancy.
- C. A disorder of the pancreas.
- D. A disorder of the pituitary gland.
Correct answer: D
Rationale: Diabetes insipidus is caused by a disorder of the pituitary gland affecting ADH regulation. This disorder results in the decreased production or release of antidiuretic hormone (ADH), leading to the inability of the kidneys to concentrate urine properly. Choices A, B, and C are incorrect as they do not relate to the underlying cause of diabetes insipidus.
3. A male client with schizophrenia tells the nurse that the FBI is monitoring his phone calls. What is the nurse's best response?
- A. Let's talk about your feelings of being monitored.
- B. There is no evidence that the FBI is monitoring your calls.
- C. Why do you think the FBI is interested in your phone calls?
- D. I can assure you that your phone calls are not being monitored.
Correct answer: A
Rationale: The correct response is to choose A: 'Let's talk about your feelings of being monitored.' This response shows empathy and encourages the client to express his feelings. Engaging the client in a discussion about his feelings can help address underlying fears without directly challenging the delusion. Choice B is incorrect because directly denying the delusion may lead to increased distrust or agitation in the client. Choice C may come across as confrontational, which can exacerbate the client's paranoia. Choice D offers a false sense of assurance and does not address the client's concerns effectively.
4. A nurse is caring for a client who is postoperative and has signs of hemorrhagic shock. When the nurse notifies the surgeon, he directs her to continue measuring the client's vital signs every 15 minutes and call him back in 1 hour. From a legal perspective, which of the following actions should the nurse take next?
- A. Document the provider's directive in the medical record
- B. Notify the nursing manager
- C. Consult the facility's risk manager
- D. Complete an incident report
Correct answer: B
Rationale: In this scenario, the nurse is facing a critical situation with a client showing signs of hemorrhagic shock. The surgeon's directive of waiting for an hour without providing immediate intervention poses a risk to the client's well-being. The nurse should prioritize the client's safety and advocate for timely and appropriate care. Notifying the nursing manager is the correct action as it activates the chain of command to ensure that the client receives the necessary care promptly. Documenting the provider's directive, consulting the risk manager, or completing an incident report are not the immediate actions needed to address the client's deteriorating condition and ensure patient safety.
5. When developing the plan of care for a child with burns requiring fluid replacement therapy, what information would the nurse expect to include?
- A. Administration of colloid initially followed by a crystalloid
- B. Determination of fluid replacement based on the type of burn
- C. Administration of most of the volume during the first 8 hours
- D. Monitoring of hourly urine output to achieve less than 1 mL/kg/hr
Correct answer: C
Rationale: The correct answer is C. In fluid replacement therapy for burns, the majority of the volume should be administered within the first 8 hours to prevent shock and maintain perfusion. Choice A is incorrect because crystalloids are typically administered first in fluid resuscitation for burns. Choice B is incorrect as fluid replacement in burn patients is primarily determined by the extent of the burn injury rather than the type of burn. Choice D is incorrect as the goal for hourly urine output in burn patients is generally higher, aiming for 1-2 mL/kg/hr in children to ensure adequate renal perfusion and prevent dehydration.