A client seeks medical attention for intermittent signs and symptoms that suggest a diagnosis of Raynaud's disease. The nurse should assess the trigger of these signs/symptoms by asking which question?

Raynaud's disease is vasospasm of the arterioles and arteries of the upper and lower extremities. It produces closure of the small arteries in the distal extremities in response to cold, vibration, or external stimuli. Episodes are characterized by pallor, cold, numbness, and possible cyanosis of the fingers, followed by erythema, tingling, and aching pain. Attacks are triggered by exposure to cold, nicotine, caffeine, trauma to the fingertips, and stress. Prolonged episodes of inactivity are unrelated to these episodes.