the termafferent nerve means

NCLEX-RN

NCLEX RN Actual Exam Test Bank

1. What does the term 'Afferent Nerve' mean?

A. Carrying an impulse to the brain
B. Carrying an impulse away from the brain
C. Carrying impulses to the motor neurons of the appendicular muscles
D. None of the above

Correct answer: A

Rationale: The correct answer is 'Carrying an impulse to the brain.' Afferent nerves are sensory nerves that carry signals from sensory receptors towards the central nervous system, including the brain. Choice B, 'Carrying an impulse away from the brain,' is incorrect as this describes efferent nerves which carry signals from the central nervous system to muscles and glands. Choice C, 'Carrying impulses to the motor neurons of the appendicular muscles,' is incorrect as it describes a different type of nerve function. Choice D, 'None of the above,' is incorrect as the correct definition of afferent nerve is indeed 'Carrying an impulse to the brain.'

2. The NFPA diamond has four colors. The blue diamond:

A. indicates hazards to health.
B. designates that it is safe to use water to put out this type of fire.
C. indicates that ice is necessary to treat an injury with this type of chemical.
D. indicates that the chemical may be incinerated upon disposal.

Correct answer: A

Rationale: The National Fire Protection Agency (NFPA) uses a safety diamond to communicate the level of threat posed by a specific chemical. The blue diamond in the NFPA diamond system signifies potential health hazards associated with the use of that chemical. Choice B is incorrect because the blue diamond does not indicate anything about using water to extinguish fires. Choice C is incorrect as the NFPA diamond does not provide information on treating injuries. Choice D is also incorrect as the blue diamond does not suggest incineration upon disposal; it pertains to health hazards.

3. What does the medical term 'basophilia' refer to?

A. An attachment of the epithelial cells of the skin to a basement membrane
B. An overabundance of a particular white blood cell in the peripheral blood
C. An underrepresentation of basophils on a blood smear
D. None of the above

Correct answer: B

Rationale: The correct answer is 'An overabundance of a particular white blood cell in the peripheral blood.' Basophilia specifically indicates an increased number of basophils in the peripheral blood. It can be observed in conditions like leukemia and certain allergic reactions. Choice A is incorrect as it describes something unrelated to basophilia. Choice C is incorrect as it suggests a decrease in basophils, which is opposite to the actual meaning of basophilia. Choice D is also incorrect as basophilia does have a defined medical significance.

4. A client is being transferred from a bed to a wheelchair. Which action is essential to maintain client safety in this situation?

A. Position the wheelchair at the foot of the bed
B. Maintain a space of at least 12 inches between the wheelchair and the bed
C. Place the footplates in the lowest position before transferring the client
D. Lock both wheels on the wheelchair before moving the client

Correct answer: D

Rationale: When transferring a client from a bed to a wheelchair, it is crucial to prioritize client safety. Locking both wheels on the wheelchair before moving the client is essential as it adds stability and prevents the wheelchair from moving unexpectedly during the transfer process. Placing the wheelchair at the foot of the bed allows for easier transfer, but ensuring the wheels are locked is more critical for safety. Maintaining a 12-inch space between the wheelchair and the bed is not as essential as ensuring wheel locks are engaged. While placing the footplates in the lowest position can enhance client comfort, it is not a safety measure that is as critical as securing the wheelchair by locking its wheels before the transfer.

5. After instructing the client on crutch walking technique, the nurse should evaluate the client's understanding by using which of the following methods?

A. Return demonstration
B. Explanation
C. Achievement of 90 on written test
D. Have the client explain the procedure to the family

Correct answer: A

Rationale: After teaching the client on crutch walking technique, assessing the client's understanding is crucial. The most effective method to evaluate the client's comprehension of a hands-on skill like crutch walking technique is through a return demonstration. This allows the nurse to observe the client performing the technique, ensuring they have grasped the instructions correctly and can execute the skill safely. While providing an explanation can help clarify doubts, it may not confirm the client's ability to perform the skill. Achieving a high score on a written test assesses cognitive understanding but not necessarily the practical application of the skill. Having the client explain the procedure to the family does not directly assess their ability to perform the skill themselves; it tests their ability to communicate the information to others.