NCLEX-RN
NCLEX RN Predictor Exam
1. For a healthcare worker under normal conditions with unsoiled hands, effective hand hygiene between patients requires which of the following?
- A. At least a 15-second scrub with plain soap and water
- B. At least a 23-minute scrub with an antimicrobial soap
- C. Use of an alcohol-based antiseptic hand-rub
- D. Wearing a mask when scrubbing
Correct answer: C
Rationale: Effective hand hygiene between patients for a healthcare worker with unsoiled hands involves using an alcohol-based antiseptic hand rub. This method is sufficient for cleaning hands that are not visibly soiled. The use of an antimicrobial soap or a prolonged scrubbing time is unnecessary and not recommended in this scenario. Wearing a mask is not required for routine hand hygiene and does not contribute to effective hand cleaning.
2. Which principle of body mechanics may help to reduce the risk of a back injury?
- A. Maintain a wide base of support
- B. Bend from the knees, not the waist
- C. Keep the back straight while lifting
- D. Push or pull objects rather than lifting
Correct answer: C
Rationale: Proper body mechanics are crucial to prevent injuries, especially for professions involving lifting and moving objects. Keeping the back straight while lifting is essential to reduce the risk of back injuries as it helps maintain the spine's natural alignment and prevents excessive strain on the back muscles. Choosing choices A, B, and D would increase the risk of back injury. Maintaining a wide base of support provides stability, bending from the knees instead of the waist protects the lower back, and pushing or pulling objects reduces the strain on the back muscles, all contributing to preventing back injuries.
3. To properly read a meniscus,
- A. hold the measuring device at eye level and read the bottom of the curve of the liquid level
- B. hold the measuring device at eye level and read the top of the curve of the liquid level where the liquid adheres to the walls of the container.
- C. hold the measuring device at table level and, looking down into the measuring device, read the bottom of the curve of the liquid level.
- D. hold the measuring device at table level and, looking down into the measuring device, read the top of the curve of the liquid level.
Correct answer: A
Rationale: To properly read a meniscus, it is essential to hold the measuring device at eye level to avoid parallax error. Reading the bottom of the curve of the liquid level is correct because the meniscus is the concave or convex curve at the liquid's surface. Choice B is incorrect because reading the top of the curve where the liquid adheres to the walls of the container can lead to inaccurate measurements. Choices C and D are incorrect as they suggest holding the device at table level, which can introduce parallax error and result in an incorrect reading.
4. In which of the following ways can a healthcare provider promote the sense of taste for an older adult?
- A. Mixing foods together on the dinner tray
- B. Avoiding cologne, air fresheners, or room deodorizers
- C. Encouraging the client to chew food thoroughly
- D. Discouraging the use of salt or seasonings with prepared food
Correct answer: C
Rationale: As individuals age, their sense of taste may diminish, impacting the enjoyment of eating. One effective way for a healthcare provider to promote the sense of taste for an older adult is by encouraging them to chew food thoroughly. Thorough chewing increases the contact of food with the taste buds, enhancing the chances of experiencing the flavors. Mixing foods together on the dinner tray may not necessarily enhance taste perception. Avoiding strong scents like cologne, air fresheners, or room deodorizers is more related to olfactory senses rather than taste. Discouraging the use of salt or seasonings can further diminish the taste experience for older adults who may already have reduced taste sensitivity.
5. A nurse is caring for newborn infants in a nursery when a man enters the area to take his baby back to the room. The man does not have an identification bracelet, and the nurse does not recognize him. What is the next action of the nurse?
- A. Call security and ask them to escort the man out of the nursery
- B. Ask the man to wait and check the infant's chart
- C. Ask the man to return to his room and bring an identification band
- D. Allow the man to take the baby to his room
Correct answer: C
Rationale: The safety of infants in newborn nurseries is maintained by requiring parents to wear identification bracelets to identify themselves as the rightful parents. This practice minimizes the risk of mistakenly allowing an unauthorized individual to take a baby. In this scenario, since the nurse does not recognize the man and he lacks an identification bracelet, the appropriate action is to ask him to return to his room and bring the identification band. This step ensures the proper identity verification before allowing the man to take the baby. Calling security without first verifying the man's identity may escalate the situation unnecessarily. Checking the infant's chart alone does not confirm the man's identity. Allowing the man to take the baby without proper verification poses a safety risk to the infant.
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