A nurse is reinforcing teaching to a group of high school students about how penetrating traumatic brain injuries cause damage to the brain. Which of the following statements should the nurse include in the teaching?
"Damage occurs from the penetrating object shattering the skull and causing an infection."
"Damage to the brain is related to coup and contrecoup injuries."
"Damage occurs from the penetrating injury causing leakage of cerebrospinal fluid."
"Damage to the brain is related to the size, route, and rate of speed of the object entering the brain."
The Correct Answer is D
A) "Damage occurs from the penetrating object shattering the skull and causing an infection." While penetrating traumatic brain injuries can lead to skull fractures and subsequent infections, the primary mechanism of brain damage in these injuries is related to the direct impact of the penetrating object on brain tissue rather than the shattering of the skull.
B) "Damage to the brain is related to coup and contrecoup injuries." Coup and contrecoup injuries occur when the brain impacts the skull's interior surface due to rapid deceleration or acceleration, commonly seen in closed head injuries such as concussions. Penetrating traumatic brain injuries involve direct penetration of foreign objects into the brain tissue, and coup-contrecoup injuries are not typically associated with these types of injuries.
C) "Damage occurs from the penetrating injury causing leakage of cerebrospinal fluid." While penetrating injuries may result in cerebrospinal fluid leakage, this is not the primary mechanism through which they cause brain damage. Leakage of cerebrospinal fluid is more commonly associated with certain types of head trauma, such as skull fractures, rather than solely penetrating injuries.
D) "Damage to the brain is related to the size, route, and rate of speed of the object entering the brain." This statement is correct. The extent of brain damage in penetrating traumatic brain injuries depends on various factors, including the size, shape, and velocity of the penetrating object, as well as the route it takes through the brain tissue. Larger, faster-moving objects tend to cause more extensive damage, whereas smaller objects or those with slower velocities may cause more localized damage. Therefore, understanding these factors is crucial in assessing and managing patients with penetrating traumatic brain injuries.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is ["A","C"]
Explanation
A. Colchicine:
Colchicine is commonly used in the treatment of pericarditis, especially in cases of recurrent or refractory pericarditis.
It helps reduce inflammation and alleviate symptoms by inhibiting the migration of neutrophils to the inflamed pericardium.
Colchicine is often used in conjunction with nonsteroidal anti-inflammatory drugs (NSAIDs) or corticosteroids for the management of pericarditis.
B. Acetaminophen:
Acetaminophen is a pain reliever and fever reducer commonly used to manage mild to moderate pain associated with various conditions, including pericarditis.
While acetaminophen may provide symptomatic relief, it is not typically considered a primary treatment for pericarditis, especially in cases of severe or recurrent pericarditis.
C. Indomethacin:
Indomethacin is a nonsteroidal anti-inflammatory drug (NSAID) that can help reduce inflammation and relieve pain associated with pericarditis.
NSAIDs are often used as first-line therapy for acute pericarditis to alleviate symptoms such as chest pain and fever.
However, caution should be exercised when using NSAIDs in certain populations, such as older adults or those with preexisting gastrointestinal or renal conditions.
D. Amiodarone:
Amiodarone is an antiarrhythmic medication used to treat various types of arrhythmias, including ventricular arrhythmias and atrial fibrillation.
While pericarditis may lead to certain arrhythmias, such as atrial fibrillation, amiodarone is not a first-line treatment for pericarditis itself.
However, it may be used in cases where pericarditis is complicated by arrhythmias or concomitant cardiac conditions.
E. Nitroglycerine:
Nitroglycerine is a vasodilator medication commonly used to treat angina and heart failure.
While pericarditis may cause chest pain similar to angina, nitroglycerine is not typically used as a primary treatment for pericarditis.
In fact, nitroglycerine may exacerbate symptoms of pericarditis by causing venodilation and increasing cardiac preload.
Correct Answer is A
Explanation
A. Hypovolemic shock: Hypovolemic shock occurs due to a significant decrease in circulating blood volume, leading to inadequate tissue perfusion. Blood loss, such as that experienced by the client in the scenario, is a common cause of hypovolemic shock. The decrease in blood pressure observed over time is consistent with the compensatory mechanisms of hypovolemic shock, where the body attempts to maintain perfusion to vital organs despite decreased blood volume.
B. Septic shock: Septic shock results from a systemic inflammatory response to infection, leading to vasodilation, increased capillary permeability, and maldistribution of blood flow. While infection can lead to hypovolemia in some cases, the scenario does not provide evidence of infection or systemic inflammatory response as the cause of shock.
C. Obstructive shock: Obstructive shock occurs when there is obstruction to blood flow within the cardiovascular system, such as in cases of pulmonary embolism, cardiac tamponade, or tension pneumothorax. There is no evidence in the scenario to suggest an obstruction to blood flow as the cause of the client's shock.
D. Neurogenic shock: Neurogenic shock results from loss of sympathetic tone leading to vasodilation and relative hypovolemia. It is often associated with spinal cord injury or severe head injury. While neurogenic shock can lead to hypotension, the scenario does not indicate any neurological injury or insult as the cause of the client's shock.
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