HESI LPN
HESI Fundamentals Practice Questions
1. A healthcare professional is caring for a client who has a prescription for a stool specimen to be sent to the laboratory to be tested for ova and parasites. Which of the following instructions regarding specimen collection should the healthcare professional provide to the assistive personnel?
- A. Collect at least 2 inches of formed stool.
- B. Wear sterile gloves while obtaining the specimen.
- C. Use a culturette for specimen collection.
- D. Record the date and time the stool was collected.
Correct answer: A
Rationale: To ensure accurate testing, a minimum amount of stool is required for specimen collection, typically at least 2 inches of formed stool. This amount provides an adequate sample for testing. Wearing sterile gloves is important for infection control but is not specifically required for stool specimen collection. Using a culturette is not typically necessary for collecting stool specimens. Recording the date and time the stool was collected is essential to ensure timely processing but does not directly impact the collection of the specimen itself.
2. A healthcare provider is preparing to insert an IV catheter into a client's arm before starting IV fluid therapy. Which of the following interventions should the provider implement to prevent infection?
- A. Thread the IV catheter so that the hub rests at the insertion site
- B. Shave excess hair from around the insertion site
- C. Cleanse the site with hydrogen peroxide before IV catheter insertion
- D. Palpate the site carefully just before inserting the IV catheter
Correct answer: A
Rationale: Inserting the IV catheter so that the hub rests at the insertion site reduces the risk of contamination along the length of the catheter. This technique helps prevent introducing microbes into the bloodstream during the catheter insertion process. Shaving excess hair is unnecessary and can increase the risk of skin irritation and infection. Cleansing the site with hydrogen peroxide is outdated as it can cause tissue damage and delay wound healing. Palpating the site just before insertion can introduce bacteria from the skin surface into the insertion site, increasing the risk of infection.
3. A nurse in a provider's office is obtaining the health and medication history of a client who has a respiratory infection. The client tells the nurse that she is not aware of any allergies, but that she did develop a rash the last time she was taking an antibiotic. Which of the following information should the nurse give to the client?
- A. We need to document the exact medication you were taking because you might be allergic to it.
- B. You should take a different type of antibiotic this time.
- C. A rash is a common reaction and is not usually concerning.
- D. You can take the same antibiotic again if needed.
Correct answer: A
Rationale: The nurse should advise the client to document the exact medication taken to identify potential allergies and prevent adverse reactions. This is important as the client developed a rash previously while taking an antibiotic, indicating a possible allergic reaction. Choice B is not appropriate as switching antibiotics without proper evaluation can be risky. Choice C is incorrect as rashes should not be dismissed without further investigation, especially in the context of taking medication. Choice D is also not recommended as re-taking the same antibiotic without clarifying the allergic reaction can lead to a potentially severe outcome.
4. When admitting a 5-month-old who has vomited 9 times in the past 6 hours, what should the healthcare provider observe for signs of which overall imbalance?
- A. Metabolic acidosis
- B. Metabolic alkalosis
- C. Increased serum hemoglobin levels
- D. Decreased serum potassium levels
Correct answer: B
Rationale: When a 5-month-old infant vomits multiple times, there is a risk of developing metabolic alkalosis due to the loss of stomach acid. Metabolic alkalosis is characterized by elevated pH and bicarbonate levels. It is caused by the loss of hydrogen ions from the body, often through vomiting. Metabolic acidosis (choice A) is unlikely in this scenario because it is more commonly associated with conditions like renal failure or diabetic ketoacidosis. Choice C, increased serum hemoglobin levels, is not typically a direct consequence of vomiting. Choice D, decreased serum potassium levels, may occur with vomiting but is not the primary concern when a patient is vomiting excessively.
5. While bathing a patient, the nurse notices movement in the patient's hair. What action should the nurse take?
- A. Use gloves to inspect the hair.
- B. Apply a lindane-based shampoo immediately.
- C. Shave the patient's hair off.
- D. Ignore the movement and continue.
Correct answer: A
Rationale: When a nurse suspects pediculosis capitis (head lice) upon noticing movement in the patient's hair, the correct action is to use gloves to inspect the hair. This protects the nurse from potential self-infestations. Applying a lindane-based shampoo immediately (Choice B) is not the first action, as diagnosis and confirmation are necessary before treatment. Shaving the patient's hair off (Choice C) is an extreme measure and is unnecessary at this stage. Ignoring the movement and continuing (Choice D) is negligent and can lead to the spread of infestation.
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