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. One of your patients is dependent on a mechanical ventilator for their respiratory needs. The patient cannot breathe on their own. Suddenly, the lights in the patient's room and the entire nursing unit go off. You realize that the electric power has been lost. What is the first thing that you should do for this patient?
- A. Plug the ventilator into the red outlet in the room.
- B. Plug the ventilator into the blue outlet in the room.
- C. Use an Ambu bag to ventilate the patient.
- D. Call the doctor about this emergency.
Correct answer: B
Rationale: In healthcare facilities, emergency generators are in place in case of power outages. The red outlets in patient rooms are connected to the emergency generator and provide power during such situations. By plugging the ventilator into the red outlet, you ensure that the patient's mechanical ventilation needs are met despite the power loss. Using an Ambu bag or calling the doctor should be secondary actions after ensuring the ventilator is powered correctly. Plugging the ventilator into the blue outlet is incorrect and can result in the ventilator not functioning during a power outage.
3. A client is taking a walk down the hallway when she suddenly realizes that she needs to use the restroom. Although she tries to make it to the bathroom on time, she is incontinent of urine before reaching the toilet. What type of incontinence does this situation represent?
- A. Relex incontinence
- B. Urge incontinence
- C. Total incontinence
- D. Functional incontinence
Correct answer: D
Rationale: Functional incontinence occurs when a client develops an urge to void but may not be able to reach the toilet in time. In this scenario, the client had the urge to use the restroom but was unable to make it in time, leading to incontinence. Functional incontinence may be related to conditions that cause the client to forget bladder sensation until the last minute, such as cognitive changes, or the client may have mobility problems that prevent her from reaching the bathroom in time. Choice A, Reflex incontinence, is incorrect as reflex incontinence is characterized by the involuntary loss of urine due to hyperreflexia of the detrusor muscle. Choice B, Urge incontinence, is not the correct answer as urge incontinence is the involuntary loss of urine associated with a strong desire to void. Choice C, Total incontinence, is also incorrect as it refers to the continuous and unpredictable loss of urine, not specifically related to the inability to reach the toilet in time.
4. A patient is asked to abduct her arms. Which of the following accurately describes her arm movement?
- A. She moves her arms away from her trunk
- B. She moves her arms toward her trunk
- C. She rotates her arms at the wrists while holding them away from her body
- D. She crosses her arms over her abdomen
Correct answer: A
Rationale: Abduction refers to moving a body part away from the midline of the body. In this case, when the patient abducts her arms, she is moving them away from her trunk. Choice A is correct. Choices B, C, and D are incorrect. Choice B describes adduction, which is the movement of a body part toward the midline. Choice C describes wrist rotation, not arm abduction. Choice D describes crossing the arms over the abdomen, which is not the movement associated with abduction.
5. A patient has been told to monitor her LH levels. Which of the following potential conditions might the patient be suffering from?
- A. Menorrhagia
- B. Grave's Disease
- C. Menopause
- D. Infertility
Correct answer: D
Rationale: Luteinizing hormone (LH) is released by the pituitary gland to stimulate ovulation. One of the common reasons for monitoring LH levels is infertility. In women with infertility, LH levels are monitored to time intercourse accurately to maximize the chances of conception. Menorrhagia (choice A) is characterized by heavy menstrual bleeding and is not directly related to LH levels. Grave's Disease (choice B) is an autoimmune disorder affecting the thyroid gland and is not typically monitored by LH levels. Menopause (choice C) is a natural process marking the end of a woman's reproductive years and is not a condition where LH monitoring for infertility is common.
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