HESI LPN
HESI Fundamentals Exam
1. A healthcare professional is planning to collect a liquid stool specimen from a client for ova and parasites. Inaccurate test results may result if the healthcare professional:
- A. Refrigerates the collected specimen
- B. Collects the specimen in a sterile container
- C. Delays the collection of the specimen
- D. Uses a non-contaminated collection container
Correct answer: A
Rationale: Refrigeration can kill the ova and parasites present in the stool specimen, leading to inaccurate test results. Storing the specimen in a cold environment can disrupt the integrity of the parasites and ova, affecting the accuracy of the test. Collecting the specimen in a sterile container (Choice B) is the correct procedure to prevent external contamination. Delaying the collection of the specimen (Choice C) may affect the freshness of the sample but does not directly impact the test results. Using a non-contaminated collection container (Choice D) is essential to maintain the sample's integrity but does not relate to the risk of killing ova and parasites through refrigeration.
2. A client with a history of atrial fibrillation is receiving warfarin (Coumadin). Which laboratory value should the LPN/LVN monitor closely while the client is taking this medication?
- A. Blood glucose level
- B. Prothrombin time (PT) and INR
- C. Serum potassium level
- D. Serum creatinine level
Correct answer: B
Rationale: The LPN/LVN should closely monitor Prothrombin time (PT) and INR (Choice B) levels in a client receiving warfarin. These values are crucial to ensure the medication's effectiveness and prevent complications like bleeding. Monitoring blood glucose level (Choice A) is not directly relevant to warfarin therapy. While serum potassium level (Choice C) and serum creatinine level (Choice D) are important for other conditions or medications, they are not specifically required to be monitored when a client is on warfarin.
3. The LPN/LVN is assessing the nutritional status of several clients. Which client has the greatest nutritional need for additional intake of protein?
- A. A college-age track runner with a sprained ankle.
- B. A lactating woman nursing her 3-day-old infant.
- C. A school-aged child with Type 2 diabetes.
- D. An elderly man being treated for a peptic ulcer.
Correct answer: B
Rationale: The correct answer is B, a lactating woman nursing her 3-day-old infant. During lactation, women have increased nutritional needs, including protein, to support milk production for their infants. Protein is essential for proper growth and development. While choice A, a college-age track runner with a sprained ankle, may require protein for tissue repair, the lactating woman's need is greater due to the demands of breastfeeding. Choice C, a school-aged child with Type 2 diabetes, may have specific dietary considerations related to diabetes management but does not necessarily require additional protein intake compared to a lactating woman. Choice D, an elderly man being treated for a peptic ulcer, may need protein for wound healing, but the nutritional need for a lactating woman is higher to support her infant's growth.
4. At the surgical scrub sink, a surgical nurse demonstrated the proper surgical handwashing technique by scrubbing:
- A. With her hands held lower than her elbows
- B. With her hands held higher than her elbows
- C. With her hands in a fist position
- D. With hands placed on her chest
Correct answer: B
Rationale: The correct technique for surgical handwashing involves scrubbing with hands held higher than the elbows. This positioning helps prevent water from the contaminated area (the hands) from flowing towards the cleaner area (the elbows). This directional flow minimizes the risk of contaminating the scrubbed hands during the handwashing process. Choices A, C, and D are incorrect: A - having hands lower than elbows would risk contamination of the clean area, C - using a fist position does not ensure proper coverage and thorough handwashing, and D - placing hands on the chest is not part of the proper surgical handwashing technique.
5. A nurse is caring for a client who has herpes zoster. The client asks about complementary and alternative therapies for pain control. The nurse should inform the client that this condition is a contraindication for which of the following therapies?
- A. Acupuncture
- B. Massage therapy
- C. Aromatherapy
- D. Herbal supplements
Correct answer: A
Rationale: The correct answer is A, Acupuncture. Acupuncture is contraindicated for clients with herpes zoster due to the risk of infection at the needle sites. In individuals with herpes zoster, the skin's integrity is compromised, increasing susceptibility to infections. Therefore, acupuncture, which involves inserting needles into the skin, can introduce pathogens and lead to local infections. Massage therapy (B), aromatherapy (C), and herbal supplements (D) do not involve skin penetration like acupuncture and are generally considered safe complementary therapies for pain control in clients with herpes zoster.
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