Answer:
Nitroglycerine is a medicine tablet that is used to treat patients with chest pain or angina due to heart failure, low blood pressure or artery blockage. This establishes that the old woman is having some kind of angina due to coronary heart disease or fissure.
Some times geriatric patients often experience slower absorption these medications as she is a 74-year-old woman it is also found that eliminator is also slower. Hence it is necessary to modify the dosage of the medication for better and long term absorption of nitroglycerine.
Thus, the correct answer should be - modifying the dosage of the medication due to slow absorption in elderly or geriatric patients.