HESI LPN
HESI CAT Exam Quizlet
1. An 8-year-old child who weighs 60 pounds receives an order for Polycilin (Ampicillin) suspension 25 mg/kg/day divided into a dose every 8 hours. The medication is labeled '125 mg/5 ml'. How many ml should the nurse administer per dose every 8 hours?
- A. 5
- B. 10
- C. 15
- D. 20
Correct answer: A
Rationale: Calculate the daily dose first: 60 pounds x 25 mg/kg = 1500 mg/day. Divide by 3 doses = 500 mg/dose. Convert to mL: (500 mg / 125 mg) x 5 ml = 20 ml. However, the question asks for the dose per administration every 8 hours, which is 1/3 of the daily dose. So, the correct calculation should be (20 ml / 3) = 6.67 ml, which rounds to 5 ml. Therefore, the correct answer is 5 ml. Choice B (10 ml) is incorrect because it doesn't consider the frequency of dosing. Choice C (15 ml) is incorrect as it overestimates the dose. Choice D (20 ml) is incorrect as it represents the total daily dose, not the dose per administration every 8 hours.
2. An adult male is admitted to the psychiatric unit from the emergency department because he is in the manic disorder. He has lost 10 pounds in the last two weeks and has not bathed in a week because he has been “trying to start a new business†and is “too busy to eat.†He is alert and oriented to time, place and person, but not situation. Which nursing diagnosis has the greatest priority?
- A. Self-care deficit
- B. Disturbed sleep pattern
- C. Disturbed thought processes
- D. Imbalanced nutrition
Correct answer: D
Rationale: Imbalanced nutrition is the priority in this case as the patient has lost a significant amount of weight and is neglecting self-care, such as bathing and eating properly. The weight loss indicates a serious issue that needs immediate attention to prevent further health complications. While self-care deficit, disturbed sleep pattern, and disturbed thought processes are also concerns for this patient, addressing the imbalanced nutrition takes precedence due to the potential impact on the patient's physical health. Neglecting proper nutrition can lead to serious complications, so it is crucial to address this issue first.
3. 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.
4. A young adult male who is being seen at the employee health care clinic for an annual assessment tells the nurse that his mother was diagnosed with schizophrenia when she was his age and that life with a schizophrenic mother was difficult indeed. Which response is best for the nurse to provide?
- A. Ask the client if he is worried about becoming schizophrenic at the age his mother was diagnosed.
- B. Encourage the client to seek genetic counseling to determine his risk for mental illness.
- C. Inform the client that his mother’s schizophrenia has affected his psychological development.
- D. Tell the client that mental illness has a familial predisposition so he should see a psychiatrist.
Correct answer: B
Rationale: Genetic counseling can help assess risk and provide guidance for the client’s concerns about potential hereditary conditions.
5. 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.
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