12. you are working with an experience nursing assistant and an lpn on the telemetry unit. a client who had an acute mi 3 days ago has the nursing diagnosis of activity intolerance related to fatigue and chest pain. which nursing activity included in the care plan is best delegated to the lpn? a. administering nitroglycerin (nitrostat) of chest discomfort occurs during client activities b. monitoring pulse, blood pressure, and oxygen saturation before and after client ambulation c. teaching the client energy conservation techniques to decrease myocardial oxygen demand d. explaining the rationale for alternating rest periods with exercise to the client and family