HESI LPN
CAT Exam Practice
1. A female client presents to the emergency department in the early evening complaining of abdominal cramping, watery diarrhea, and vomiting. She tells the nurse that she was at a picnic and ate barbecue that afternoon. What question is most important for the triage nurse to ask this client?
- A. Have you recently traveled outside the United States?
- B. How high was your temperature when you returned home?
- C. Have you taken any medication to treat these symptoms?
- D. Is anyone else sick who was also at the picnic?
Correct answer: D
Rationale: The most important question for the triage nurse to ask the client in this scenario is whether anyone else who attended the picnic is also sick. This is crucial to identify a potential outbreak or common source of infection. Asking about recent travel may be important for infectious diseases but is not as relevant as identifying a common source among individuals who shared the same food. Inquiring about the client's temperature is important but does not provide immediate insight into the cause of symptoms. Asking about medication taken is relevant but not as critical as determining if others are affected, which could indicate a foodborne illness.
2. The unlicensed assistive personnel (UAP) reports that a client’s blood pressure cannot be measured because the client has casts on both arms and is unable to be turned to the prone position for blood pressure measurement in the legs. What action should the nurse implement?
- A. Advise the UAP to document the last blood pressure obtained on the client's graphic sheet
- B. Estimate the blood pressure by assessing the pulse volume of the client’s radial pulses
- C. Demonstrate how to palpate the popliteal pulse with the client supine and the knee flexed
- D. Document why the blood pressure cannot be accurately measured at the present time
Correct answer: D
Rationale: When a client cannot have their blood pressure measured due to specific circumstances such as casts on both arms, the nurse should document the reason why the blood pressure cannot be obtained accurately. This documentation is crucial for maintaining a clear record of the client's condition and for continuity of care. Advising the UAP to document the last blood pressure obtained (Choice A) does not address the current inability to measure the blood pressure. Estimating the blood pressure by assessing the pulse volume of radial pulses (Choice B) is not a reliable method for obtaining accurate blood pressure readings. Demonstrating how to palpate the popliteal pulse (Choice C) is irrelevant in this situation as it does not provide a solution for accurately measuring the blood pressure.
3. 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.
4. The nurse is evaluating a client who has had a mastectomy and is experiencing pain and swelling in the arm on the affected side. What action should the nurse take?
- A. Assess for signs of lymphedema
- B. Encourage the client to perform arm exercises
- C. Provide pain relief through medication
- D. Recommend wearing a compression sleeve
Correct answer: A
Rationale: Assessing for signs of lymphedema is crucial in this situation as it is a common complication following mastectomy. Lymphedema presents as swelling and pain in the affected arm due to compromised lymphatic drainage. By assessing for lymphedema, the nurse can identify the condition early and implement appropriate interventions such as compression sleeves, manual lymphatic drainage, and exercises. Encouraging arm exercises (Choice B) may exacerbate the symptoms if lymphedema is present. While providing pain relief through medication (Choice C) is important, assessing for the underlying cause of pain and swelling takes precedence. Recommending a compression sleeve (Choice D) may be suitable but should come after a thorough assessment for lymphedema to ensure the most effective management plan.
5. Which techniques should be used to administer an intradermal (ID) injection for a Mantoux test to screen for tuberculosis (TB)? Select all that apply.
- A. Observe for an intradermal bleed after the antigen is injected
- B. Select an ID site using the volar surface of the forearm
- C. Use a 26 or 27-gauge needle with a length of 1/4 to 5/8 inches on a 1 ml calibrated syringe
- D. Ensure that the needle is inserted into the skin with the bevel up
Correct answer: A
Rationale: Observing for an intradermal bleed after the antigen is injected is a proper technique for an ID injection. This is important to confirm the correct placement of the injection. Choice B is correct because the recommended site for an ID injection for a Mantoux test is the volar surface of the forearm. Choice C is incorrect because the standard needle size for an ID injection is usually 26 or 27 gauge with a length of 1/4 to 5/8 inches, not 25 gauge with a length of 1/2 inch. Choice D is incorrect because the needle should be inserted into the skin with the bevel facing up, not down.
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