An 82-year-old client with osteoarthritis is admitted to the medical unit. The nurse is conducting a pain assessment. Which assessment finding would be most concerning and require immediate nursing intervention?

An 82-year-old client with a history of osteoarthritis is admitted to the medical unit. During a routine pain assessment, the client, who was previously oriented, is now confused, agitated, and unable to verbalize their pain level clearly.

In older adults, acute confusion is not a normal finding and should be treated as a medical emergency. The primary concern is delirium, an acute, fluctuating disturbance in attention and cognition. Untreated pain is a common precipitating factor for delirium in hospitalized older adults. While expected osteoarthritis symptoms include chronic pain and morning stiffness, an acute change in mental status requires immediate investigation for underlying causes such as infection, electrolyte imbalance, or unrelieved severe pain.

• Immediate Assessment: Perform a focused neurological assessment. Evaluate for signs of hypoxia, hypoglycemia, or infection. Use a validated delirium screening tool (e.g., CAM - Confusion Assessment Method).
• Safety First: Initiate fall precautions and consider one-to-one supervision. Agitation increases the risk of pulling out IV lines or falling.
• Pain Re-evaluation: Attempt to assess pain using a behavioral pain scale (e.g., PAINAD) designed for non-verbal patients. Observe for non-verbal cues like grimacing, guarding, or restlessness.
• Provider Notification: Report the acute change in mental status immediately to the healthcare provider. Prepare to implement orders for diagnostic tests (e.g., CBC, BMP, urinalysis) and non-pharmacological comfort measures.
• Family Involvement: Contact family to establish the client's baseline cognitive status and recent history, which is crucial for differentiating delirium from dementia.

When prioritizing, use the acute vs. chronic rule. An acute change in level of consciousness (confusion/agitation) takes priority over chronic symptoms (pain score of 6/10, morning stiffness) or expected behaviors (requesting scheduled medication). This aligns with Maslow's hierarchy (physiological safety) and the nursing process (assessment first).