A 17-year old was injured after diving into shallow water. He was transported to the emergency department where imaging indicated he suffered a spinal cord injury. Based on this information, what mechanism likely caused the spinal cord injury?
hyperextension
compression
flexion-rotation
flexion
The Correct Answer is B
Choice A Rationale: hyperextension is when the neck is bent backward beyond its normal range of motion. This can happen in a rear-end collision or a fall on the back of the head.
Choice B Rationale: A spinal cord injury occurs when there is damage to the spinal cord or the surrounding structures, such as the vertebrae, ligaments, or discs. The most common cause of spinal cord injury is trauma, which can result from direct impact, penetration, or excessive force on the spine. Diving into shallow water can cause compression of the spine, which means that the vertebrae are pushed together and squeeze the spinal cord. This can damage the nerve fibers and disrupt the communication between the brain and the body. Compression injuries can affect any part of the spine, but are more common in the cervical and thoracic regions.
Choice C Rationale: flexion-rotation is when the neck is bent and twisted at the same time. This can happen in a sports injury or a violent assault.
Choice D Rationale: This is when the neck is bent forward beyond its normal range of motion. This can cause the posterior part of the vertebral column to compress and fracture, while the anterior part of the spinal cord is stretched and injured. This can happen in a head-on collision or a fall on the face. A flexion-rotation is when the neck is bent and twisted at the same time.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is C
Explanation
Choice A Rationale: Notifying the nurse administrator should not be the first action when a client is experiencing pain or injury.
Choice B Rationale: Cleaning up the spill is important to prevent further accidents but does not address the client's immediate pain and discomfort.
Choice C Rationale: Asking the client to remain still is the best first action to ensure the client's safety and assess the extent of the injury or pain.
Choice D Rationale: Documenting the incident is important but should follow
Correct Answer is D
Explanation
Choice A Rationale: Leakage is not typically associated with upper motor neuron deficits related to a spinal cord injury.
Choice B Rationale: Anuria (absence of urine production) is not a common manifestation of upper motor neuron deficits in this context.
Choice C Rationale: A flaccid bladder and an inability to voluntarily void are more characteristic of lower motor neuron deficits. Upper motor neuron deficits often lead to spasticity and involuntary voiding.
Choice D Rationale: Spasticity and involuntary voiding are common manifestations of upper motor neuron deficits related to spinal cord injury. This is due to the loss of inhibitory control over reflexes, including the micturition reflex.
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