NCLEX-RN
NCLEX RN Exam Preview Answers
1. An examiner is using an ophthalmoscope to examine a patient's eyes. The patient has astigmatism and is nearsighted. Which of these techniques by the examiner would indicate that the examination is being correctly performed?
- A. Rotating the lens selector dial to bring the object into focus
- B. Using the large full circle of light when assessing pupils that are not dilated
- C. Rotating the lens selector dial to the black numbers to compensate for astigmatism
- D. Using the grid on the lens aperture dial to visualize the external structures of the eye
Correct answer: A
Rationale: To correctly perform an eye examination using an ophthalmoscope on a patient with astigmatism and nearsightedness, the examiner should rotate the lens selector dial to bring the object into focus. This adjustment helps compensate for nearsightedness or farsightedness but does not correct astigmatism. Rotating the lens selector dial to the black numbers is not an appropriate technique for compensating for astigmatism. Using the grid on the lens aperture dial is primarily for visualizing external structures of the eye, not for addressing refractive errors. The large full circle of light is typically used when assessing dilated pupils, not for examining patients with astigmatism and nearsightedness. Therefore, the correct technique is rotating the lens selector dial to bring the object into focus.
2. A nurse is preparing to insert a small-bore nasogastric feeding tube for a client's enteral feedings. In which method does the nurse measure the correct length of the tube?
- A. From the tip of the nose to the xiphoid process
- B. From the tip of the nose to the earlobe to the xiphoid process
- C. From the earlobe to the xiphoid process
- D. From the tip of the nose to the earlobe to the umbilicus
Correct answer: B
Rationale: When preparing to insert a nasogastric tube, the nurse must measure the correct length to ensure that the end of the tube will be in the correct position in the stomach. The accurate method to measure the length is from the tip of the nose to the earlobe to the xiphoid process. This length ensures that the end of the tube reaches the stomach, avoiding placement in the small intestine or esophagus. Choice A is incorrect as it does not include the earlobe, which is essential for accurate measurement. Choice C is incorrect because measuring from the earlobe alone does not provide the correct length for positioning in the stomach. Choice D is incorrect as it includes the umbilicus, which is not the appropriate landmark for measuring the length of a nasogastric tube intended for stomach placement.
3. When providing mouth care to a patient in a coma, what should you do to provide good and safe mouth care?
- A. keep the head of the bed up to prevent aspiration
- B. brush the teeth and rinse the mouth with a cup of water
- C. use a special foam swab to brush only the tongue
- D. use a special foam swab to brush the tongue and teeth
Correct answer: D
Rationale: When providing mouth care to a patient in a coma, it is crucial to use a special foam swab to brush the tongue and teeth. This method helps maintain good oral hygiene for comatose patients. Special foam swabs are designed to effectively clean all areas of the mouth, including the cheeks and tongue, ensuring thorough care. Using water for mouth care in comatose patients can lead to aspiration, so it is important to avoid this practice. Keeping the head of the bed up alone does not prevent aspiration during mouth care for comatose patients, making choice A incorrect. Merely brushing the tongue (choice C) or using a foam swab only on the tongue (choice B) may not provide the comprehensive mouth care necessary for patients in a coma.
4. When caring for a patient with latex allergy, the healthcare provider creates a latex-safe environment by doing which of the following?
- A. Carefully cleaning the wall-mounted blood pressure device before using it.
- B. Donning latex gloves outside the room to limit powder dispersal.
- C. Using a latex-free pharmacy protocol.
- D. Placing the patient in a semi-private room.
Correct answer: C
Rationale: Creating a latex-safe environment for a patient with latex allergy is crucial to prevent allergic reactions. Using a latex-free pharmacy protocol is essential as it ensures that medications and supplies provided to the patient are free of latex components. Cleaning a wall-mounted blood pressure device may not be sufficient as the device itself may contain latex parts that can trigger an allergic reaction. Donning latex gloves, even outside the room, is not recommended as powder dispersal can cause issues; only non-latex gloves should be used in a latex-safe environment. Placing the patient in a semi-private room does not directly address the need to eliminate latex exposure from medical supplies and equipment, which is better achieved through a latex-free pharmacy protocol.
5. Which of the following is an organizational factor that affects workplace violence directed at nurses?
- A. Clients who have short hospital stays
- B. The presence of security guards
- C. Restricted client areas
- D. Understaffing of nursing personnel
Correct answer: D
Rationale: Understaffing of nursing personnel is a critical organizational factor that can contribute to workplace violence directed at nurses. When there are too few nurses on duty due to understaffing, it can lead to delays in care delivery and inadequate attention to clients' needs. This situation can result in heightened frustration, aggression, or violence from clients or their families towards the nursing staff. On the other hand, the presence of security guards (Choice B) may enhance safety in the workplace and deter violence, making it an incorrect choice. Clients who have short hospital stays (Choice A) and restricted client areas (Choice C) are not directly linked to organizational factors that promote workplace violence against nurses, making them incorrect choices.
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