A74 year old woman complains of heaviness in her chest nausea and sweating that suddenly began about an hour ago. she is conciliatory and alert but anxious. her blood pressure is 144/84 mm hg and her heart rate is 110 beats/min. she took two of her prescribed nitroglycerin (0.4 mg tablets) before your arrival but still feels heaviness in her chest. you shouldrecall that geriatric patients often have slower absorption and eliminator times which may necessitate modification of the dosing of certain drugs (t/f)