John is in his early sixties. He has difficulties in remembering basic information, such as his own address. He often fails to recognize people and cannot carry out simple motor activities. John initially experienced loss of memory a few years ago; over time these symptoms have increased. He does not experience any fluctuations in consciousness. John is unable to carry out day-to-day activities. Which of the following diagnoses would best fit John's condition?
A) Delirium
B) Trisomy21
C) Somatic symptom disorder
D) Alzheimer's disease

Question

Quizplus · Accepted Answer

John's symptoms are consistent with Alzheimer's disease, which is a neurodegenerative disorder that leads to progressive cognitive decline. Delirium is a reversible state of cognitive impairment that is often caused by an underlying medical condition, medication, or substance abuse. Trisomy 21, also known as Down syndrome, is a genetic disorder that is typically diagnosed at birth and is characterized by intellectual disability and developmental delays. Somatic symptom disorder involves the presence of physical symptoms that are not fully explained by a medical condition and are often associated with anxiety or distress. None of these conditions fully explain John's symptoms as presented in the scenario.

John Is in His Early Sixties