HESI LPN
Fundamentals of Nursing HESI
1. Heparin 20,000 units in 500 ml D5W at 50 ml/hour has been infusing for 5.5 hours. How much heparin has the client received?
- A. 11,000 units.
- B. 13,000 units.
- C. 15,000 units.
- D. 17,000 units.
Correct answer: A
Rationale: To calculate the total amount of heparin received, multiply the infusion rate (50 ml/hour) by the total infusion time (5.5 hours). This results in 275 ml of the solution infused. Since there are 20,000 units of heparin in 500 ml, there are 800 units per ml. Therefore, 275 ml contains 220,000 units. However, the heparin is diluted in 500 ml, so the client has received half of this amount, which is 110,000 units. Therefore, the correct answer is 11,000 units. Choices B, C, and D are incorrect as they do not reflect the correct calculation based on the provided information.
2. An assistive personnel tells the nurse, 'I am unable to find a large blood pressure cuff for a client who is obese. Can I just use the regular cuff if I can get it to stay on?' The nurse replies that taking the blood pressure of a morbidly obese client with a regular blood pressure cuff will result in a reading that is:
- A. Low
- B. High
- C. Inaccurate
- D. Unaffected
Correct answer: B
Rationale: Using a regular blood pressure cuff on a morbidly obese client will lead to a falsely high blood pressure reading. This occurs because the cuff is not appropriately sized for the client's arm circumference, resulting in increased pressure on the artery and an inaccurate high reading. Choice A is incorrect because the reading will be falsely high, not low. Choice C is incorrect as the reading will not be accurate with an incorrectly sized cuff. Choice D is incorrect because the reading will be affected by using the wrong cuff size.
3. A healthcare professional is preparing to perform nasal tracheal suctioning for a client. Which of the following is an appropriate action for the healthcare professional to take?
- A. Hold the suction catheter with the non-dominant hand.
- B. Apply suctioning for 20 to 30 seconds.
- C. Place the catheter in a clean and dry location for later use.
- D. Use surgical asepsis when performing the procedure.
Correct answer: D
Rationale: Using surgical asepsis when performing nasal tracheal suctioning is crucial to prevent infection. Choice A is incorrect because the suction catheter should be held with the dominant hand to ensure better control and precision during the procedure. Choice B is incorrect as suctioning should be applied for no longer than 10 to 15 seconds to avoid trauma to the mucous membranes. Choice C is incorrect as the catheter should be disposed of properly after single-use to prevent cross-contamination and infection.
4. A client with lower extremity weakness is being taught a four-point crutch gait by a nurse. Which of the following instructions should the nurse include in the teaching?
- A. Bear weight on both legs.
- B. Move the crutches and the weak leg in unison.
- C. Advance the crutches and the strong leg simultaneously.
- D. Move the crutches forward, then move one leg at a time.
Correct answer: D
Rationale: The correct technique for a four-point crutch gait involves moving the crutches forward, then moving one leg at a time. This method provides stability and support by alternating movement between the crutches and legs. Choice A is incorrect because bearing weight on both legs simultaneously is not the correct method for a four-point gait. Choice B is incorrect as moving the crutches and weak leg together does not provide the required stability. Choice C is incorrect as advancing the crutches and strong leg together does not promote the alternating movement needed for a four-point gait.
5. Which client statement from the assessment data is likely to explain their noncompliance with propranolol hydrochloride (Inderal)?
- A. I have problems with diarrhea.
- B. I have difficulty falling asleep.
- C. I have diminished sexual function.
- D. I often feel jittery.
Correct answer: C
Rationale: The correct answer is C. Propranolol hydrochloride (Inderal) is known to cause side effects such as diminished sexual function, which can lead to noncompliance with the medication due to its impact on quality of life. Choices A, B, and D are less likely to be associated with propranolol hydrochloride. While diarrhea, difficulty falling asleep, and feeling jittery are possible side effects of propranolol, they are not as commonly reported as diminished sexual function. Therefore, choice C is the most likely reason for the client's noncompliance.
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