HESI LPN
HESI Fundamentals Exam
1. A healthcare professional is preparing to administer 750 mL of 0.9% sodium chloride IV to infuse over 7 hours. The healthcare professional should set the pump to deliver how many mL/hr?
- A. 107 mL/hr
- B. 75 mL/hr
- C. 90 mL/hr
- D. 60 mL/hr
Correct answer: A
Rationale: To calculate the mL/hr rate for the infusion, divide the total volume (750 mL) by the total time (7 hours). 750 mL รท 7 hours = 107 mL/hr. This means that the pump should be set to deliver approximately 107 mL/hr. Choice B (75 mL/hr) is incorrect because it does not reflect the correct calculation. Choice C (90 mL/hr) is incorrect as it does not align with the accurate calculation. Choice D (60 mL/hr) is incorrect as it does not match the correct mL/hr rate obtained through the calculation.
2. A nurse is calculating a client's fluid intake over the past 8 hr. Which of the following items should the nurse plan to document on the client's intake and output record as 120 mL of fluid?
- A. 2 cups of soup
- B. 1 quart of water
- C. 8 oz of ice chips
- D. 6 oz of tea
Correct answer: C
Rationale: The correct answer is C: 8 oz of ice chips. When calculating fluid intake, the nurse should document half of the volume of ice chips to account for the air in between the chips. Therefore, 8 oz of ice chips equals 120 mL of fluid. Choices A, B, and D are incorrect because they do not equate to 120 mL of fluid intake as per the given scenario. Choice A, 2 cups of soup, is more than 120 mL. Choice B, 1 quart of water, is significantly more than 120 mL. Choice D, 6 oz of tea, is less than 120 mL.
3. A PN is assigned to care for a newborn with a neural tube defect. Which dressing, if applied by the PN, would need no further intervention by the charge nurse?
- A. Telfa dressing with antibiotic ointment
- B. Moist sterile non-adherent dressing
- C. Dry sterile dressing that is occlusive
- D. Sterile occlusive pressure dressing
Correct answer: B
Rationale: The correct answer is B: Moist sterile non-adherent dressing. A moist sterile non-adherent dressing is suitable for covering a neural tube defect and would not require further intervention. This type of dressing helps prevent the dressing from sticking to the wound, minimizing trauma during dressing changes. Choice A, Telfa dressing with antibiotic ointment, is not ideal for a neural tube defect as the ointment may not be necessary and can complicate wound care. Choice C, dry sterile dressing that is occlusive, is not recommended for a neural tube defect as it may not provide the necessary environment for proper wound healing. Choice D, sterile occlusive pressure dressing, is excessive for a neural tube defect and may cause unnecessary pressure on the wound site.
4. A client is being taught about the use of an incentive spirometer. Which statement by the client indicates effective teaching?
- A. I will use the spirometer every hour while awake.
- B. I will blow into the spirometer as hard as I can.
- C. I should feel dizzy when using the spirometer.
- D. I will only use the spirometer if I feel short of breath.
Correct answer: A
Rationale: The correct answer is A because using the spirometer every hour while awake is an effective way to prevent respiratory complications. This frequency helps in maintaining lung function and preventing atelectasis. Choice B is incorrect because blowing too hard into the spirometer can lead to hyperventilation and dizziness, making choice C also incorrect. Choice D is wrong as waiting to use the spirometer only when feeling short of breath may not provide optimal lung expansion and can lead to respiratory issues.
5. A healthcare provider is caring for a client who has a heart murmur. The healthcare provider is preparing to auscultate the pulmonary valve. Over which of the following locations should the healthcare provider place the bell of the stethoscope?
- A. Second intercostal space at the left sternal border
- B. Fifth intercostal space at the midclavicular line
- C. Fourth intercostal space at the left sternal border
- D. Fifth intercostal space at the left anterior axillary line
Correct answer: A
Rationale: The correct location to auscultate the pulmonary valve is the second intercostal space at the left sternal border. This area is where the pulmonary valve can best be heard due to its anatomical position. Choice B, the fifth intercostal space at the midclavicular line, is the location for auscultating the mitral valve. Choice C, the fourth intercostal space at the left sternal border, is the area for the tricuspid valve. Choice D, the fifth intercostal space at the left anterior axillary line, is the site for listening to the mitral valve as well. Therefore, option A is the correct choice for auscultating the pulmonary valve.
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