Cognition

Cognition

  • Cognition involves mental processes for knowledge, understanding, decision-making, problem-solving, and information processing.

  • It encompasses perception, attention, memory, reasoning, language, and problem-solving, being central to human intelligence.

  • Influenced by age, education, health, emotions, and affected by neurological conditions, mental disorders, or injuries.

Nursing Process: ADPIE
Assessment

  • Involves gathering subjective (patient/family reports) and objective (observation, alertness, orientation, speech, mood) information.

  • Key assessment tools include MMSE, Clock Drawing Test, GCS, and CAM.

  • Focus on cognitive domains: orientation, attention, memory, language, executive, and visuospatial functioning.

Diagnosis

  • Common diagnoses include Impaired Memory, Acute/Chronic Confusion, and Risk for Injury.

Planning

  • Establish SMART (Specific, Measurable, Achievable, Relevant, Time-sensitive) short and long-term goals.

Intervention

  • Address environment, cognitive support, physical needs, safety, and family involvement.

Evaluation

  • Assess the effectiveness of interventions and progress toward goals.

Communicating with Patients who have Impaired Cognition or Consciousness

  • Strategies include: attempting communication, avoiding rushing, reducing distractions, not arguing, using multiple modalities, providing consistent reminders, regular orientation, using short/simple sentences (avoiding "elderspeak"), asking yes/no questions, limiting choices, being concrete, avoiding slang/jargon, incorporating gestures, and checking for comprehension.

Differentiating Dementia and Delirium
Dementia

  • Characterized by chronic, gradual onset (months to years) with slow, even progression.

  • Involves memory impairment (recent and remote), impaired judgment, and difficulties with word finding.

  • Misperceptions are usually absent, and sleep cycles are generally normal.

Delirium

  • Characterized by acute, often evening onset (hours to less than 1 month) with abrupt progression.

  • Features reduced alertness, fluctuating cognitive states, and highly evident recent/immediate memory impairment.

  • Speech may be disorganized/incoherent, and illusions, delusions, or hallucinations can be present.

  • Sleep patterns are disturbed, with day-night reversal common.

Case Study: Dementia Summary

  • Dementia (e.g., Alzheimer's) leads to progressive memory loss, difficulties with daily activities, and behavioral changes.

  • Early recognition of gradual symptoms is crucial for supportive care, including structured routines, safety measures, and appropriate medications, to improve quality of life and safety for affected patients.