HESI LPN
Practice HESI Fundamentals Exam
1. A client has an indwelling urinary catheter. Which of the following actions should the nurse take to prevent infection?
- A. Ensure the catheter tubing is free of kinks.
- B. Clean the perineal area with antiseptic solution daily.
- C. Irrigate the catheter with normal saline every shift.
- D. Secure the catheter to the client's leg.
Correct answer: B
Rationale: Cleaning the perineal area with antiseptic solution daily is essential to prevent infection when caring for a client with an indwelling urinary catheter. This practice helps reduce the risk of introducing pathogens into the urinary tract. Ensuring the catheter tubing is free of kinks (Choice A) is important for maintaining proper urine flow but is not directly related to preventing infection. Irrigating the catheter with normal saline every shift (Choice C) is not a routine practice and can increase the risk of introducing pathogens. Securing the catheter to the client's leg (Choice D) is important for stability but does not directly prevent infection.
2. The nurse assesses a client who has a nasal cannula delivering oxygen at 2 L/min. To assess for skin damage related to the cannula, which areas should the nurse observe?
- A. Tops of the ears
- B. Bridge of the nose
- C. Around the nostrils
- D. Over the cheeks
Correct answer: A
Rationale: When a client is using a nasal cannula for oxygen therapy, the areas prone to skin damage are the tops of the ears and around the nostrils. The pressure exerted by the cannula on these areas can lead to skin breakdown, so it is important for the nurse to observe these sites for any signs of damage. The correct answer is 'Tops of the ears.' Choices 'Bridge of the nose' and 'Over the cheeks' are not typically areas where skin damage related to the cannula would occur, making them incorrect choices.
3. A nurse is preparing to administer ketorolac 0.5 mg/kg IV bolus every 6 hr to a school-age child who weighs 66 lb. The available ketorolac injection is 30 mg/mL. How many mL should the nurse administer per dose? (Round the answer to the nearest tenth. Use a leading zero if it applies. Do not use a trailing zero.)
- A. 0.5 mL
- B. 1 mL
- C. 1.5 mL
- D. 2 mL
Correct answer: A
Rationale: To calculate the dose, first convert the weight from pounds to kilograms. The child weighs 66 lb, which is approximately 30 kg. The prescribed dose is 0.5 mg/kg, so for a 30 kg child, the dose would be 0.5 mg/kg x 30 kg = 15 mg. Since the available ketorolac injection is 30 mg/mL, the nurse should administer 15 mg รท 30 mg/mL = 0.5 mL per dose. Therefore, choice A (0.5 mL) is the correct answer. Choices B, C, and D are incorrect as they do not accurately calculate the correct dose based on the child's weight and the concentration of the ketorolac injection.
4. A client is being discharged with a prescription for digoxin (Lanoxin). Which of the following instructions should the nurse include in the discharge teaching?
- A. Take your pulse daily before taking this medication.
- B. Take an extra dose if you miss a dose of this medication.
- C. Take this medication with food.
- D. Avoid eating foods high in potassium while taking this medication.
Correct answer: A
Rationale: The correct answer is A: 'Take your pulse daily before taking this medication.' It is essential for clients taking digoxin to monitor their pulse daily to detect bradycardia, a potential side effect. Choice B is incorrect because clients should never take an extra dose if a dose is missed; they should take the missed dose as soon as remembered unless it is close to the time for the next dose. Choice C is incorrect because digoxin is preferably taken with food to minimize gastrointestinal side effects. Choice D is incorrect because digoxin itself can cause low potassium levels, so avoiding potassium-rich foods is not necessary.
5. The healthcare provider prescribes the diuretic metolazone (Zaroxolyn) 7.5 mg PO. Zaroxolyn is available in 5 mg tablets. How much should the LPN/LVN plan to administer?
- A. 1/2 tablet.
- B. 1 tablet.
- C. 1 1/2 tablets.
- D. 2 tablets.
Correct answer: C
Rationale: To administer 7.5 mg of metolazone (Zaroxolyn), the LPN/LVN should plan to give 1 1/2 tablets since each tablet contains 5 mg. Choice A (1/2 tablet) would not provide the full prescribed dose. Choice B (1 tablet) would only deliver 5 mg, which is less than the prescribed dose. Choice D (2 tablets) would exceed the prescribed dose, resulting in 10 mg instead of the required 7.5 mg. Therefore, the correct answer is to administer 1 1/2 tablets to achieve the prescribed 7.5 mg.
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