A nurse is caring for a client who has a subarachnoid hemorrhage and asks why they are having a CT angiography. Which of the following should the nurse understand about CT angiography?
A CT angiogram will reveal any edema within the brain tissue.
A CT angiogram will reveal any overproduction of cerebrospinal fluid (CSF).
A CT angiogram will reveal any fractures within the skull or spine.
A CT angiogram will reveal any decreased blood flow related to vasospasm.
The Correct Answer is D
A. A CT angiogram will reveal any edema within the brain tissue: CT angiography primarily focuses on visualizing blood vessels and blood flow within the brain. While it may incidentally detect areas of edema, its primary purpose is to assess vascular structures rather than brain tissue changes such as edema.
B. A CT angiogram will reveal any overproduction of cerebrospinal fluid (CSF): CT angiography does not assess cerebrospinal fluid (CSF) production. Its main function is to visualize blood vessels and blood flow within the brain, particularly to detect abnormalities such as aneurysms, arteriovenous malformations, or vasospasm.
C. A CT angiogram will reveal any fractures within the skull or spine: CT angiography primarily focuses on imaging blood vessels and is not the preferred modality for detecting fractures within the skull or spine. CT scans or plain radiography are typically used to assess bony structures for fractures.
D. A CT angiogram will reveal any decreased blood flow related to vasospasm: This statement is correct. CT angiography is a specialized imaging technique that combines computed tomography (CT) scanning with contrast dye to visualize blood vessels and blood flow within the brain. It is commonly used to detect and monitor vasospasm, a potentially serious complication of subarachnoid hemorrhage, where blood vessels in the brain constrict, leading to decreased blood flow. CT angiography allows for the visualization of these changes in blood vessel diameter and blood flow dynamics.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is D
Explanation
A. Comply with compression therapy:
Compression therapy typically refers to the use of compression garments or devices to improve circulation and reduce swelling in the extremities, particularly in conditions such as venous insufficiency or deep vein thrombosis.
While compression therapy may be beneficial for certain circulatory disorders, it is not a standard treatment for cardiac tamponade.
Cardiac tamponade is a medical emergency characterized by the accumulation of fluid in the pericardial sac, leading to increased pressure on the heart and impaired cardiac function.
Treatment for cardiac tamponade involves prompt recognition and intervention to relieve the pressure on the heart, such as pericardiocentesis or surgical drainage of the pericardial effusion.
B. Monitor wounds on lower extremities:
Monitoring wounds on the lower extremities is essential for assessing healing, preventing complications such as infection, and promoting overall wound care.
However, monitoring wounds on the lower extremities is not directly related to the management or monitoring of cardiac tamponade.
In cardiac tamponade, the focus of monitoring is on assessing signs and symptoms of cardiac compromise, such as hypotension, tachycardia, dyspnea, and pulsus paradoxus, rather than wound care.
C. Take antiplatelet medications as ordered:
Antiplatelet medications, such as aspirin or clopidogrel, are commonly prescribed to prevent platelet aggregation and reduce the risk of thrombotic events, particularly in patients with cardiovascular disease or a history of myocardial infarction or stroke.
While antiplatelet medications may be part of the long-term management of certain cardiac conditions, they are not specific to the treatment or monitoring of cardiac tamponade.
The primary treatment for cardiac tamponade involves interventions to relieve the pressure on the heart and restore cardiac function, such as pericardiocentesis or surgical drainage of the pericardial effusion.
D. Monitor for gradual onset of symptoms:
Phase II of cardiac tamponade is characterized by a gradual onset of symptoms as the pressure within the pericardial sac increases, leading to impaired cardiac filling and decreased cardiac output.
Symptoms may include dyspnea, fatigue, orthopnea, tachycardia, and chest discomfort, which may develop gradually over time.
Early recognition of symptoms is crucial for prompt diagnosis and intervention to prevent further deterioration and improve outcomes in patients with cardiac tamponade.
Correct Answer is B
Explanation
A. "I can't eat as much as I used to": While changes in eating habits may be related to various factors, such as appetite changes or difficulty chewing/swallowing, this statement does not specifically indicate how hearing loss affects the client's ability to perform ADLs.
B. "I get dizzy when I nod my head": This statement suggests that the client is experiencing dizziness, which could be related to hearing loss affecting their sense of balance. Dizziness can significantly impact the client's ability to perform activities of daily living (ADLs) safely, such as walking, cooking, or bathing, as it increases the risk of falls and injury.
C. "I wash my hair every other day": This statement describes a personal hygiene habit and does not directly indicate how hearing loss affects the client's ability to perform ADLs.
D. "I walk my dog at least twice a day": This statement describes an activity the client engages in and does not directly indicate how hearing loss affects the client's ability to perform ADLs. Walking a dog does not necessarily require hearing ability, as it primarily involves physical movement and visual observation.
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