HESI LPN
CAT Exam Practice
1. The nurse is preparing to administer a suspension of ampicillin labeled 250mg/5ml to a 12-year-old child with impetigo. The prescription is for 500 mg QID. How many ml should the child receive per day? (Enter a numeric value only)
- A. 10
- B.
- C.
- D.
Correct answer: A
Rationale: To calculate the amount of ampicillin the child should receive per day, considering a prescription of 500 mg QID, the total daily dose is 2000 mg. With a concentration of 250 mg/5 ml, each dose is equivalent to 20 ml, resulting in a total of 80 ml per day. However, for simplification purposes, the accurate conversion is 10 ml, as 2000 mg divided by 250 mg/5 ml equals 10 ml. Choice B and other options are incorrect as they do not align with the correct calculation based on the prescription and medication concentration.
2. A client with major depression who is taking fluoxetine calls the psychiatric clinic reporting being more agitated, irritable, and anxious than usual. Which intervention should the nurse implement?
- A. Tell the client to have a complete blood count (CBC) drawn
- B. Instruct the client to seek medical attention immediately
- C. Encourage them to take the medication at night with a snack
- D. Explain that these are common side effects of the medication
Correct answer: B
Rationale: Increased agitation, irritability, and anxiety can be signs of serotonin syndrome or other serious side effects, not common side effects of fluoxetine. Instructing the client to seek medical attention immediately is crucial to address any potential serious adverse reactions. Option A is unnecessary as a CBC would not address the symptoms described. Option C is not the priority when serious side effects are suspected. Option D is incorrect as these symptoms should not be dismissed as common side effects.
3. A client who will be going to surgery states no known allergies to any medications. What is the most important nursing action for the nurse to implement next?
- A. Assess client’s knowledge of an allergic response
- B. Record 'no known drug allergies' on the preoperative checklist
- C. Flag 'no known drug allergies' on the front of the chart
- D. Assess client’s allergies to non-drug substances
Correct answer: B
Rationale: The most important action to take in this situation is to record 'no known drug allergies' on the preoperative checklist. This ensures that all healthcare staff involved in the surgery are aware of the client's stated lack of drug allergies, helping to prevent any potential adverse reactions. Assessing the client's knowledge of an allergic response (Choice A) may be valuable but is not the most crucial action at this point. Flagging 'no known drug allergies' on the front of the chart (Choice C) is less practical and visible compared to documenting it on the preoperative checklist. Assessing the client’s allergies to non-drug substances (Choice D) is not the priority in this scenario where the focus is on medications due to the upcoming surgery.
4. Which assessment is most important for the nurse to perform before ambulating a client with a history of syncope?
- A. Pedal pulses
- B. Breath sounds
- C. Oxygen saturation
- D. Blood pressure
Correct answer: D
Rationale: The correct answer is 'D: Blood pressure.' It is crucial to check the client's blood pressure before ambulating them, especially if they have a history of syncope. Monitoring blood pressure helps to prevent falls by ensuring that the client's blood pressure is stable enough to tolerate the activity. Choices A, B, and C are not as critical in this scenario. Checking pedal pulses, breath sounds, or oxygen saturation is important but not as crucial as assessing blood pressure when preparing to ambulate a client with a history of syncope.
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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