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. Hallucinations: As dementia progresses, especially in conditions like Alzheimer's disease, sensory perceptions can become distorted, leading to hallucinations, where the person perceives things that are not present.

B. Paranoia: Paranoia, or irrational suspicions and mistrust, often increases as dementia progresses. The person may become increasingly fearful or suspicious of others, even caregivers or family members.

C. Lethargy: While lethargy can be a symptom of dementia, it is more commonly associated with the earlier stages of the disorder when the person may experience apathy, lack of interest, and reduced energy levels. As the disease progresses, other behavioral changes like agitation or restlessness may become more prominent.

D. Impulsivity: Impulsivity, or acting without forethought or consideration of consequences, can increase as dementia progresses, particularly in certain types of dementia like frontotemporal dementia. This can manifest as impulsive behaviors such as excessive spending, inappropriate social behavior, or risky actions.

E. Disregard for caregiver's feelings: As dementia advances, the person's ability to empathize or recognize the feelings and needs of others may decline. They may become increasingly self-focused or unaware of the impact of their actions on caregivers, leading to behaviors that disregard or overlook the caregiver's feelings and well-being.

A. Synchronized electrical cardioversion: Synchronized electrical cardioversion is a procedure used to restore normal sinus rhythm in patients with certain types of arrhythmias, such as atrial fibrillation or atrial flutter. However, it is not typically indicated for all patients with worsening heart failure and arrhythmias.

B. Cardiac resynchronization therapy (CRT): CRT, also known as biventricular pacing, involves the placement of a specialized pacemaker device to improve the coordination of contractions between the heart's chambers. It is often used in patients with heart failure and arrhythmias to help regulate the rhythm and improve cardiac function.

C. Heart catheterization with percutaneous intervention: Heart catheterization with percutaneous intervention, such as angioplasty or stent placement, is used to treat coronary artery disease by opening narrowed or blocked blood vessels. While coronary artery disease may contribute to heart failure, this procedure specifically targets the coronary arteries rather than arrhythmias.

D. Echocardiogram : An echocardiogram is a diagnostic test that uses sound waves to create images of the heart's structure and function. While an echocardiogram may provide valuable information about the heart's condition in a patient with heart failure and arrhythmias, it is not a procedure used to regulate the rhythm directly.