Timing Sometimes the etiology of pain can be determined when time aspects are known . Therefore , the nurse inquiries about the onset , duration , relationship between time and intensity , and whether there are changes in rhythmic patterns . The patient is asked if the pain began suddenly or increased gradually . Sudden pain that rapidly reaches maximum intensity is indicative of tissue rupture , and immediate intervention is necessary . Pain from ischemia gradually increases and becomes intense over a longer time . The chronic pain of...











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