In addition, the impairment should involve ≥ 2 of the following domains: Impaired ability to acquire and remember new information (eg, asking repetitive questions, frequently misplacing objects or forgetting appointments) Impaired reasoning and handling of complex tasks and poor judgment (eg, being unable to manage a bank account, making poor financial decisions) Language dysfunction (eg, difficulty thinking of common words, errors speaking and / or writing) Visuospatial dysfunction (eg, inability to recognize faces or common objects) Changes in personality, behavior, or comportment If cognitive impairment is confirmed, history and physical examination should then focus on signs of treatable disorders that cause cognitive impairment (eg, vitamin B12 deficiency, neurosyphilis, hypothyroidism, depression —see table).