Aging can reduce an individual\ s ability to regulate body temperature.-rationale: in an assessment, the nurse should remember that aging can reduce ability to regulate body temperature. this not only increases the elderly clients susceptibility to hyperthermia and heat stroke but also decreases his ability to produce a fever in response to his infection. an elderly client may exhibit decreased (not increased) pain perception. many medications, such as anesthetic agents and analgesics, can cause confusion or depression (not psychotic behavior) in an elderly client. the risk of developing emphysema is highest in smokers, regardless of age.client needs category: health promotion and maintenanceclient needs subcategory: nonecognitive level: comprehensionreference: taylor, c., et al. fundamentals of nursing: the art and science of nursing care, 6th ed. philadelphia: lippincott williams & wilkins, 2008, p. 559.