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. The client has silvery scaling plaques bilaterally on elbows, forearms, and palms. When scratched, the skin bleeds over these plaques. What is most important to include in this client’s plan of care?
- A. Interventions to decrease emotional stress
- B. Precautions about avoiding sunlight
- C. Strategies to increase omega-3 fatty acids in the diet
- D. Instruct about applying a corticosteroid cream
Correct answer: A
Rationale: The most important aspect to include in this client's plan of care is interventions to decrease emotional stress. Psoriasis, characterized by silvery scaling plaques on the skin, can be exacerbated by emotional stress. Managing stress is crucial in controlling the condition. Precautions about avoiding sunlight are important in psoriasis management, but emotional stress has a more significant impact. While omega-3 fatty acids may provide some benefits, stress management should take priority. Applying a corticosteroid cream may help with symptoms, but addressing emotional stress is crucial for long-term management of psoriasis.
3. The nurse is admitting a client from the post-anesthesia unit to the postoperative surgical care unit. Which intervention should the nurse implement first?
- A. Advance to clear liquids as tolerated
- B. Straight catheterization if unable to void
- C. Administer Cefazolin 1 gram IVPQ q6 hours
- D. Obtain a complete blood cell count (CBC) in the morning
Correct answer: B
Rationale: The correct answer is to perform straight catheterization if the client is unable to void. This action is essential to prevent urinary retention and its potential complications following anesthesia. Option A, advancing to clear liquids, is not the priority upon admission as the focus should be on urinary function first. Option C involves administering an antibiotic, which is important but not the immediate priority. Option D, obtaining a CBC, can be done later and is not as crucial as ensuring proper urinary function postoperatively.
4. A young adult who is hit with a baseball bat on the temporal area of the left skull is conscious when admitted to the ED and is transferred to the Neurological Unit to be monitored for signs of closed head injury. Which assessment finding is indicative of a developing epidural hematoma?
- A. Altered consciousness within the first 24 hours after injury
- B. Confusion immediately following the injury
- C. Headache that resolves quickly
- D. Brief loss of consciousness with a lucid interval
Correct answer: A
Rationale: The correct answer is A. Epidural hematoma often presents with a brief loss of consciousness followed by a lucid interval and then a rapid decline in consciousness. Therefore, altered consciousness within the first 24 hours after the injury is indicative of a developing epidural hematoma. Choices B, C, and D are incorrect because confusion immediately following the injury, headache that resolves quickly, and brief loss of consciousness with a lucid interval are not specific signs of epidural hematoma.
5. What is the primary focus of postoperative nursing care for the client with colon trauma?
- A. Monitoring for elevated coagulation studies
- B. Observation for and prevention of fistulas
- C. Monitoring for signs of hyponatremia
- D. Observation for and prevention of infection
Correct answer: D
Rationale: The correct answer is D: Observation for and prevention of infection. Postoperative nursing care for a client with colon trauma primarily focuses on preventing infections. Clients with colon trauma are at high risk for infections due to the disruption of the intestinal barrier. Monitoring for signs of infection, maintaining proper wound care, administering antibiotics as prescribed, and implementing strict aseptic techniques are essential in preventing postoperative infections. Choices A, B, and C are incorrect because elevated coagulation studies, fistulas, and hyponatremia are not the primary concerns in the immediate postoperative period for a client with colon trauma.
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