colonoscopy

Dear Doctor, My Mom of 80 is due to undergo a Colonoscopy at 4p.m. in the afternoon. According to the handout from the hospital preparation starts at 4p.m. the day before.(24 hrs!)Is this logical- can she not take the preparation later as I remember when she had a Colonoscopy abroad she took it the night before for the following morning. Please help! Thanks!

24 שעות לפני הבדיקה יש צורך לעבור לדיאטה של נוזלים בלבד, את התרופות יש לקחת לרב כ12 שעות לפני הבדיקה.