A nurse is educating a group of high school students about the damage caused by penetrating traumatic brain injuries.
Which statement should the nurse include in the teaching?
Damage to the brain is related to the size, route, and speed of the object entering the brain.
Damage occurs from the penetrating injury causing leakage of cerebrospinal fluid.
Damage to the brain is related to coup and contrecoup injuries.
Damage occurs from the penetrating object shattering the skull and causing an infection.
The Correct Answer is A
Choice A rationale
Penetrating traumatic brain injuries can cause significant damage to the brain. The extent of this damage is often related to the size, route, and speed of the object entering the brain. A larger, faster object or one that follows a path through vital areas of the brain can cause more severe injury. This is because the object can disrupt normal brain tissue and function, leading to a range of potential effects, from temporary changes in brain function to long-term complications or even death.
Choice B rationale
While it is true that a penetrating injury can cause leakage of cerebrospinal fluid (CSF), this is not the primary source of damage in such injuries. CSF leakage can lead to complications such as meningitis, an infection of the protective membranes covering the brain and spinal cord.
However, the primary damage in penetrating brain injuries comes from the direct physical disruption of brain tissue by the object.
Choice C rationale
Coup and contrecoup injuries are terms used to describe injuries that occur at the site of impact (coup) and on the opposite side of the brain (contrecoup). These injuries are typically associated with blunt force trauma, not penetrating injuries. In a penetrating injury, the damage is localized to the path that the object has taken through the brain, rather than at the point of impact and its opposite side.
Choice D rationale
While a penetrating object can indeed shatter the skull and potentially cause an infection, the primary damage in penetrating brain injuries is caused by the direct injury to the brain tissue itself. Infections are a secondary complication that can occur if bacteria enter the brain through the wound.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is ["B","C","D"]
Explanation
Choice A rationale
Hyponatremia, or low sodium levels, is not typically a symptom of degenerative disc disease. It can be caused by a variety of conditions, but it is not directly linked to degenerative disc disease.
Choice B rationale
Paresthesia, or abnormal sensations such as tingling or prickling, can develop with degenerative disc disease. This is due to the fact that degenerative changes can lead to nerve compression, which can cause these sensations.
Choice C rationale
Foot drop, a gait abnormality, can be a symptom of degenerative disc disease. It can occur if the disease process affects the nerves that control the muscles involved in lifting the foot.
Choice D rationale
Intermittent pain is a common symptom of degenerative disc disease. The pain can vary in intensity and may be worse with certain activities or positions.
Choice E rationale
Hyperreflexia, or overactive reflexes, is not typically a symptom of degenerative disc disease. It is more commonly associated with conditions that affect the upper motor neurons.
Correct Answer is ["A","D","E","F"]
Explanation
Choice A rationale: The nurse should prepare to administer tissue plasminogen activator (tPA). This medication is used to dissolve blood clots that have formed in the blood vessels of the brain. The client’s CT scan shows a large area of decreased attenuation in the left hemisphere, which is indicative of a stroke. The administration of tPA is time-sensitive and should be initiated as soon as possible after the onset of symptoms if there is no evidence of hemorrhage on the CT scan.
Choice B rationale: Positioning the client on his right side is not necessarily beneficial in this situation. The client is experiencing symptoms of a stroke, and positioning will not alleviate these symptoms. It is more important to focus on interventions that can potentially reverse the effects of the stroke, such as the administration of tPA.
Choice C rationale: There is no indication that the client requires a bolus of 50% dextrose. The client’s blood glucose levels are within normal limits, and hypoglycemia is not a concern at this time. Administering a bolus of 50% dextrose without indication could potentially lead to hyperglycemia.
Choice D rationale: The nurse should anticipate the need for endotracheal intubation. The client’s condition is deteriorating, and he is now unresponsive to verbal stimuli and only responds to painful stimuli. This indicates a decreased level of consciousness, which can compromise the client’s airway. Endotracheal intubation may be necessary to protect the client’s airway and ensure adequate ventilation.
Choice E rationale: The nurse should prepare to administer antihypertensive medication. The client’s blood pressure is significantly elevated, which can further exacerbate the damage caused by a stroke. Antihypertensive medication can help to lower the client’s blood pressure and reduce the risk of further complications.
Choice F rationale: The nurse should use a calm and reassuring approach when interacting with the client. This can help to reduce anxiety and promote a sense of safety. It is important to remember that the client may be scared and confused due to his symptoms, and a calm and reassuring approach can help to alleviate these feelings.
Choice G rationale: Restricting all fluids and sodium intake is not indicated in this situation. While fluid and sodium balance is important in stroke patients, there is no indication that the client is fluid overloaded or has a condition that would require sodium restriction. Furthermore, the client has been prescribed IV fluids, indicating that fluid restriction is not appropriate at this time.
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