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. 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. The healthcare provider is evaluating a client for potential dehydration. Which assessment finding is most indicative of fluid volume deficit?
- A. Moist mucous membranes
- B. Increased urine output
- C. Decreased skin turgor
- D. Elevated blood pressure
Correct answer: C
Rationale: Corrected Rationale: Decreased skin turgor is a classic sign of dehydration. When someone is dehydrated, the skin loses its elasticity and becomes less turgid. This change is easily assessed by gently pinching and pulling up the skin on the back of the hand or forearm. If the skin remains elevated or tents rather than quickly returning to its normal position, it indicates dehydration. Moist mucous membranes (Choice A) are actually a sign of adequate hydration. Increased urine output (Choice B) can be a sign of dehydration, but decreased skin turgor is a more specific indicator. Elevated blood pressure (Choice D) is not typically associated with fluid volume deficit and may indicate other health issues.
4. A client has a history of vasovagal attacks resulting in brady-dysrhythmias. Which instruction is most important to include in the teaching plan?
- A. Use stool softeners regularly
- B. Avoid electromagnetic fields
- C. Maintain a low-fat diet
- D. Do not use aspirin products
Correct answer: A
Rationale: The correct answer is A: 'Use stool softeners regularly.' Vasovagal attacks can be triggered by straining, and using stool softeners can help prevent such attacks. Choices B, C, and D are not directly related to preventing vasovagal attacks in this context. Avoiding electromagnetic fields, maintaining a low-fat diet, or not using aspirin products are important for various health reasons but not specifically for preventing vasovagal attacks related to brady-dysrhythmias.
5. A 17-year-old adolescent is brought to the emergency department by both parents because the adolescent has been coughing and running a fever with flu-like symptoms for the past 24 hours. Which intervention should the nurse implement first?
- A. Obtain a chest X-ray per protocol.
- B. Place a mask on the client’s face.
- C. Assess the client’s temperature.
- D. Determine the client’s blood pressure
Correct answer: B
Rationale: The correct intervention for the nurse to implement first is to place a mask on the client's face. This is crucial to prevent the potential spread of infectious agents to others in the emergency department, considering the presenting symptoms of coughing and fever. Placing a mask helps in containing respiratory secretions and reducing the risk of airborne transmission. Assessing the client’s temperature or blood pressure can be done after ensuring infection control measures. Obtaining a chest X-ray would be a secondary intervention once immediate infection control is addressed.
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