Causative factors for the development of delirium include which of the following? Select all that apply.

Choice A reason: Taking a daily multivitamin with iron is important for overall health, but it is not specifically related to preventing sickle cell crises. While maintaining proper nutrition is essential, it does not directly address the triggers or management of sickle cell crises.
Choice B reason: Restricting fluids to 2 liters per day is not appropriate for patients with sickle cell disease. In fact, maintaining adequate hydration is crucial to prevent sickling of red blood cells and reduce the risk of a sickle cell crisis. Restricting fluids could lead to dehydration, which can exacerbate the condition.
Choice C reason: Limiting exposure to crowds is an important instruction for patients with sickle cell disease. Crowded environments can increase the risk of infections, which can trigger a sickle cell crisis. By avoiding crowded places, patients can reduce their exposure to potential infections and help prevent crises.
Choice D reason: While avoiding caffeinated beverages is generally good advice for overall health, it is not specifically related to preventing sickle cell crises. Caffeine can cause dehydration, but the primary focus for preventing crises is maintaining proper hydration and avoiding infections.

Choice A reason: While CT or MRI scans can be helpful in identifying structural changes in the brain associated with dementia, such as atrophy or the presence of strokes, they are not sufficient on their own to diagnose dementia. These imaging techniques are often used to rule out other causes of cognitive impairment and to support a clinical diagnosis, but they do not provide a complete picture of a patient's cognitive function.
Choice B reason: Patient history and cognitive assessment are the primary methods for diagnosing dementia. The clinical diagnosis is based on a thorough evaluation of the patient's medical history, including any changes in cognitive function, behavior, and daily living activities. Cognitive assessments, such as the Mini-Mental State Examination (MMSE) or Montreal Cognitive Assessment (MoCA), are used to evaluate memory, attention, language, and other cognitive abilities. These assessments help to determine the presence and severity of cognitive impairment and differentiate dementia from other conditions that may cause similar symptoms.
Choice C reason: A brain biopsy is not a standard procedure for diagnosing dementia. It is an invasive procedure that involves taking a small sample of brain tissue for examination under a microscope. While it can provide definitive information about certain types of dementia, such as Creutzfeldt-Jakob disease, it is rarely used due to its invasiveness and associated risks.
Choice D reason: An electroencephalogram (EEG) is a test that measures electrical activity in the brain. It can be useful in diagnosing certain neurological conditions, such as epilepsy, but it is not typically used to diagnose dementia. EEGs do not provide detailed information about cognitive function or the structural changes in the brain associated with dementia.