HESI LPN
HESI CAT Exam 2022
1. A premature infant weighing 1,200 grams at birth receives a prescription for beractant (Survanta) 120 mg endotracheal now and q6 hr for 24 hr. The recommended dose for beractant is 100 mg/kg birth weight per dose. Single-use vials of Survanta are labeled 100 mg/4 ml. What action should the nurse take?
- A. Give 4.8 ml q6 hr
- B. Notify the healthcare provider that the dose is too high
- C. Notify the healthcare provider that the dose is too low
- D. Give 1.2 ml q6 hr
Correct answer: A
Rationale: The correct answer is to give 4.8 ml q6 hr. To calculate the dose, you divide the prescribed dose of 120 mg by the concentration of Survanta, which is 100 mg per 4 ml. This results in 4.8 ml per dose, as 120 mg ÷ 100 mg/4 ml = 4.8 ml. Option B suggesting to notify the healthcare provider that the dose is too high is incorrect because the calculated dose of 4.8 ml is based on the recommended dose of 100 mg/kg birth weight. Option C suggesting to notify the healthcare provider that the dose is too low is incorrect as the calculated dose is based on the correct dosage calculation. Option D suggesting to give 1.2 ml q6 hr is incorrect because it doesn't align with the correct calculation.
2. 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.
3. After removing an IV that became infiltrated in the client’s left forearm, which site should the nurse select as a possible site to insert another IV catheter?
- A. Right hand
- B. Right forearm
- C. Left hand
- D. Right subclavian
Correct answer: A
Rationale: The correct answer is A: Right hand. When an IV becomes infiltrated in the client's left forearm, it is essential to avoid the same side due to the risk of complications. Therefore, the right hand is a suitable alternative site for IV insertion. Choices B, C, and D are incorrect. Choosing the right forearm (B) would still be on the same side, which increases the risk of complications. The left hand (C) is not a preferred option immediately after an infiltration in the left forearm. The right subclavian (D) is an invasive site typically reserved for central line placement and not a first-line choice for IV insertion.
4. The nurse should explain to a client with lung cancer that pleurodesis is performed to achieve which expected outcome?
- A. Debulk tumor to maintain patency of air passages
- B. Relieve empyema after pneumonectomy
- C. Prevent the formation of effusion fluid
- D. Remove fluid from the intrapleural space
Correct answer: C
Rationale: The correct answer is C. Pleurodesis is a procedure used to prevent the re-accumulation of pleural effusion by creating adhesion between the pleurae. This helps prevent the formation of effusion fluid. Choices A, B, and D are incorrect because pleurodesis is not performed to debulk tumors, relieve empyema after pneumonectomy, or remove fluid from the intrapleural space. Understanding the purpose of pleurodesis is essential in providing accurate patient education and care.
5. When planning to contact the healthcare provider about a client's need for a belt restraint, what information is most important to report?
- A. The presence and location of any pressure ulcers.
- B. Measures already taken to maintain client safety.
- C. Any special mattresses on the client’s bed.
- D. Current vital signs and oxygen saturation.
Correct answer: B
Rationale: The correct answer is B. When reporting to the healthcare provider about a client's need for a belt restraint, it is crucial to provide information on the measures already taken to maintain client safety. This includes detailing alternative strategies that have been tried before considering restraint use. This information helps the healthcare provider assess the situation comprehensively and explore other safety interventions. Choices A, C, and D, though relevant to the client's care, are not as critical to report when discussing the need for a belt restraint. Pressure ulcers (Choice A) are important but not directly related to the need for a belt restraint. The presence of special mattresses (Choice C) may influence overall care but is not the most pertinent information when considering restraints. Current vital signs and oxygen saturation (Choice D) are essential for the client's overall assessment but do not directly address the need for a belt restraint.
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