HESI LPN
HESI Practice Test for Fundamentals
1. The healthcare professional caring for a patient who is immobile frequently checks for impaired skin integrity. What is the rationale for this action?
- A. Inadequate blood flow leads to decreased tissue ischemia.
- B. Patients with limited caloric intake develop thicker skin.
- C. Pressure reduces circulation to affected tissue.
- D. Verbalization of skin care needs is decreased.
Correct answer: C
Rationale: The rationale behind checking for impaired skin integrity in an immobile patient is that pressure reduces circulation to the affected tissue. Prolonged pressure on specific body parts can lead to reduced blood flow to those areas, causing tissue damage and potentially leading to pressure ulcers. Choices A, B, and D are incorrect because inadequate blood flow causing decreased tissue ischemia, limited caloric intake leading to thicker skin, and decreased verbalization of skin care needs are not directly related to the rationale for checking for impaired skin integrity in immobile patients.
2. A healthcare professional is preparing to insert an IV catheter into a client’s arm prior to initiating IV fluid therapy. Which of the following interventions should the healthcare professional implement to prevent infection?
- A. Thread the catheter up to the hub
- B. Use a sterile technique throughout the procedure
- C. Clean the insertion site with alcohol only
- D. Use gloves but not a mask during the procedure
Correct answer: B
Rationale: Using a sterile technique throughout the procedure is essential to prevent infection when inserting an IV catheter. This includes maintaining aseptic conditions, using sterile equipment, and following proper hand hygiene practices. Choice A is incorrect because threading the catheter up to the hub does not specifically address infection prevention. Choice C is incorrect as cleaning the insertion site with alcohol only may not provide adequate disinfection, as it is essential to use an antiseptic solution to reduce microbial load. Choice D is incorrect as wearing gloves alone is not sufficient protection against infection; a mask should also be worn to prevent the spread of microorganisms through respiratory secretions.
3. A healthcare professional is reviewing a client’s medications. They include cimetidine and imipramine. Knowing that cimetidine decreases the metabolism of imipramine, the healthcare professional should identify that this combination is likely to result in which of the following effects?
- A. Decreased therapeutic effects of cimetidine
- B. Increased risk of imipramine toxicity
- C. Decreased risk of adverse effects of cimetidine
- D. Increased therapeutic effects of imipramine
Correct answer: B
Rationale: When cimetidine decreases the metabolism of imipramine, it leads to an increased concentration of imipramine in the body, which can result in imipramine toxicity. This increased risk of toxicity is the likely effect of this drug interaction. Choice A is incorrect because cimetidine's effect on imipramine metabolism does not impact the therapeutic effects of cimetidine. Choice C is incorrect because the interaction does not decrease the risk of adverse effects of cimetidine. Choice D is incorrect as the increased concentration of imipramine can lead to toxicity, not increased therapeutic effects.
4. A healthcare professional is preparing to administer 750 mL of 0.9% sodium chloride IV to infuse over 7 hr. The professional should set the infusion pump to deliver how many mL/hr? (Round the answer to the nearest whole number. Use a leading zero if it applies. Do not use a trailing zero.)
- A. 107 mL/hr
- B. 120 mL/hr
- C. 95 mL/hr
- D. 100 mL/hr
Correct answer: A
Rationale: To calculate the infusion rate, divide the total volume (750 mL) by the total time (7 hr). 750 ÷ 7 ≈ 107 mL/hr. Choice A is correct because it accurately calculates the infusion rate based on the total volume and time. Choices B, C, and D are incorrect as they do not reflect the correct calculation for the infusion rate in this scenario.
5. When caring for a client with a tracheostomy, which of the following actions should the nurse take?
- A. Clean the skin around the stoma with normal saline.
- B. Secure the tracheostomy ties with two fingers' width underneath.
- C. Soak the outer cannula in warm tap water.
- D. Use a cotton tip applicator to clean the inside of the inner cannula.
Correct answer: A
Rationale: When caring for a client with a tracheostomy, the nurse should clean the skin around the stoma with normal saline to prevent infection and ensure cleanliness. This action helps in maintaining skin integrity and preventing skin breakdown. Securing the tracheostomy ties with two fingers' width underneath is essential to allow for proper fit, prevent skin irritation, and ensure the ties are not too tight. Soaking the outer cannula in warm tap water is not recommended as it can lead to contamination and is not a standard practice. Using a cotton tip applicator to clean the inside of the inner cannula is discouraged as it can leave fibers behind, increasing the risk of aspiration and respiratory complications.
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