NCLEX-RN
NCLEX RN Actual Exam Test Bank
1. Which brain structure serves as the heat-regulating center?
- A. Hypothalamus
- B. Pituitary Gland
- C. Pons
- D. Medulla Oblongata
Correct answer: A
Rationale: The correct answer is the Hypothalamus. The hypothalamus is responsible for regulating body temperature, ensuring it stays within a narrow range. Moreover, the hypothalamus controls various essential bodily functions, such as hunger, thirst, and circadian rhythms. Choices B, C, and D are incorrect because the Pituitary Gland primarily produces and releases hormones, the Pons is involved in functions like sleep, respiration, and bladder control, and the Medulla Oblongata controls vital functions like breathing and heart rate, but not body temperature regulation.
2. Which of the following statements best describes substance P?
- A. Substance P decreases a client's sensitivity to pain
- B. Substance P levels are drawn before administration of narcotic analgesics
- C. Substance P is found in the brain and is responsible for pain control and management of depression
- D. Substance P is found in the dorsal horn of the spinal column
Correct answer: D
Rationale: Substance P is a neurotransmitter found in the brain and the dorsal horn of the spinal column, not just in the brain. It is associated with pain transmission and modulation. Substance P is known to cause inflammation, edema, and pain. While it plays a role in pain perception, it does not decrease a client's sensitivity to pain (Choice A), nor are its levels typically drawn before administering narcotic analgesics (Choice B). Although substance P is involved in pain control, it is not responsible for managing depression (Choice C). Therefore, the correct statement is that substance P is found in the dorsal horn of the spinal column.
3. A client is post-op day #1 after a hemilaminectomy. The nurse removes the dressing as ordered and notes that the incision appears slightly red, with a small amount of serous drainage coming from the site. The edges of the incision are approximated. What is the next action of the nurse?
- A. Assist the client to shower as ordered and monitor the site for further changes
- B. Instruct the client to lie prone to allow the site to dry
- C. Place antibiotic ointment and a sterile dressing over the site
- D. Notify the physician for an antibiotic order
Correct answer: A
Rationale: An incision that appears slightly red with a small amount of serous drainage on the first day following surgery is going through a normal healing process. It is important to keep the incision clean. In this case, the nurse should assist the client to shower as ordered to maintain hygiene and monitor for changes in the incision site. Instructing the client to lie prone may not be necessary and could cause discomfort. Applying antibiotic ointment without a specific order is not recommended as it can interfere with the healing process. Notifying the physician for an antibiotic order is premature at this stage since the incision is showing normal signs of healing.
4. To accurately assess a patient's respiration rate, which of the following methods would be BEST?
- A. Tell the patient, 'Please remain silent while I count your number of breaths.'
- B. Count respirations at the same time you are counting the pulse rate
- C. Count the pulse rate for one minute, then, while keeping your index fingers on the patient's radial artery, count the respirations for an additional minute.
- D. Count the patient's respiration rate, then take the patient's temperature, and then take the pulse rate.
Correct answer: B
Rationale: The most accurate method to assess a patient's respiration rate is to count the breaths simultaneously while counting the pulse rate. This approach ensures that the patient is unaware of the specific focus on their breathing, preventing any conscious alteration in breathing patterns. Choice A is incorrect because informing the patient may lead to altered breathing as the patient may consciously change their breathing pattern. Choice C involves counting the pulse rate first, which is not necessary for assessing respiration rate. Choice D is incorrect as it includes unnecessary steps such as taking the patient's temperature before counting respiration rate, which adds no value to accurately assessing the respiration rate.
5. A client is being seen for disrupted sleep patterns. The nurse encourages the client to verbalize feelings about sleep and inability to maintain adequate sleep habits. What is the rationale for this action?
- A. The client most likely has a mental illness that should be treated before addressing sleep issues
- B. The client may have unrecognized anxiety or fear that could be contributing to poor sleep habits
- C. The client may become tired once they start talking
- D. None of the above
Correct answer: B
Rationale: Clients experiencing disrupted sleep patterns may have underlying anxiety or fear contributing to their poor sleep habits. Encouraging clients to verbalize their feelings about sleep allows them to address any negative emotions that may be impacting their ability to sleep well. By working through these issues, clients may experience increased peace and relaxation, which can help promote better sleep. Option A is incorrect because assuming a mental illness without evidence can lead to mismanagement of the client's care. Option C is incorrect as it does not address the underlying emotional factors affecting the client's sleep patterns. Option D is incorrect as there is a specific rationale for encouraging the client to verbalize their feelings about sleep.
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