The nurse is caring for a client with delirium. What does the nurse understand about the onset of this condition?
A) It is rapid in onset and may last between hours and days.
B) It is chronic and insidious in nature and is progressive in onset.
C) It is typically episodic in nature and variable in onset.
D) It is characterized by developing late in life and is caused by brain disease or injury.
A) It is rapid in onset and may last between hours and days.
Explanation: A) Delirium is rapid in onset and may last between hours and days.
B) Dementia, as opposed to delirum, is chronic and insidious in nature and is progressive in onset, characterized by developing late in life and being cause by brain disease or injury.
C) Depression is typically episodic in nature and variable in onset.
D) Dementia, not delirium, is chronic and insidious in nature and is progressive in onset, characterized by developing late in life and being cause by brain disease or injury.
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The sum of 
written in the proper form and reduced to lowest terms is ________.
A. 
B. 
C. 
D. 