Answer:
Diuretic usage.
Step-by-step explanation:
Diuretics are used to treat hypertension and kidney and heart failure as they help in eliminating sodium. They are medicines that act on the functioning of the kidneys, interfering with the process of filtration and reabsorption of water and salts and increasing the amount of urine produced by the body. By enhancing urinary flow, diuretics favor the elimination of sodium, often responsible for cases of high blood pressure and heart and kidney failure.
Like other medicines, diuretics can cause bowel changes and constipation. If abused, they can make the intestines lazy and addictive. In more serious cases, the patient may develop colitis, or irritable bowel syndrome.
For this reason, we can state that the change in Margaret's intestinal pattern probably occurred due to the use of diuretics to treat hypertension.