HESI LPN
CAT Exam Practice
1. A 13-year-old girl, diagnosed with diabetes mellitus Type 1 at the age of 9, is admitted to the hospital in diabetic ketoacidosis. Which occurrence is the most likely cause of the ketoacidosis?
- A. Ate an extra peanut butter sandwich before gym class
- B. Incorrectly drew up and administered too much insulin
- C. Was not hungry, so she skipped eating lunch
- D. Has had a cold and ear infection for the past two days
Correct answer: B
Rationale: The correct answer is B. Incorrect insulin administration is a common cause of diabetic ketoacidosis. Administering too much insulin can lead to uncontrolled hyperglycemia, where the body starts breaking down fat for energy, resulting in the production of ketones. Choices A, C, and D are less likely to directly cause diabetic ketoacidosis. Eating an extra peanut butter sandwich, skipping lunch, or having a cold and ear infection would not directly lead to the metabolic derangements seen in diabetic ketoacidosis.
2. A female client with fibromyalgia asks the nurse to arrange for hospice care to help her manage the severe, chronic pain. Which interdisciplinary team member should the nurse consult to assist the client?
- A. Contact a hospice nurse for an evaluation
- B. Arrange an appointment with a pain specialist
- C. Ask for a consultation with a psychologist
- D. Form an interdisciplinary team for evaluation
Correct answer: A
Rationale: In this scenario, the most appropriate interdisciplinary team member for the nurse to consult is a hospice nurse. Hospice nurses specialize in managing pain and symptom control, which aligns with the client's needs for managing severe chronic pain. While pain specialists (choice B) focus on pain management, in this case, the client specifically requested hospice care for pain management. Consulting a psychologist (choice C) may be beneficial for addressing psychological aspects, but the client's immediate need is pain management. Forming an interdisciplinary team (choice D) is not as specific as consulting a hospice nurse, who has the specialized skills required to address the client's pain effectively.
3. When conducting diet teaching for a client who is on a postoperative full liquid diet, which foods should the nurse encourage the client to eat?
- A. Vanilla frozen yogurt
- B. Vegetable juice
- C. Clear beef broth
- D. Canned fruit cocktail
Correct answer: A
Rationale: The correct answer should be provided as choice E: Vanilla frozen yogurt. For a postoperative full liquid diet, the nurse should encourage the client to eat foods that are fully liquid and easy to digest. Vanilla frozen yogurt is a suitable choice as it provides calories and nutrients while being in a liquid form. Creamy peanut butter, vegetable juice, and canned fruit cocktail are not appropriate for a full liquid diet as they are not fully liquid and may not be easy to digest. Creamy peanut butter is solid, vegetable juice is not fully liquid, and canned fruit cocktail contains solid pieces.
4. A new mother asks the nurse if the newborn infant has an infection because the healthcare provider prescribed a blood test called the TORCH screen test. Which response should the nurse offer to the mother's inquiry?
- A. Rising titers identify the etiology of certain neuro-sensory birth defects
- B. The screen determines the risk for inherited anomalies in the newborn
- C. The test identifies the correct antibiotic to give the newborn for an infection
- D. Exposure to infections that can cross the placenta cause a positive antibody titer
Correct answer: D
Rationale: The TORCH screen test is used to detect infections that can affect the newborn by showing if there was exposure to these infections. Choice A is incorrect because the TORCH screen test is not specifically for identifying the etiology of neuro-sensory birth defects. Choice B is incorrect because the test does not determine the risk for inherited anomalies. Choice C is incorrect because the test is not used to identify the correct antibiotic for an infection, but rather to detect infections that may have affected the newborn.
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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