In case of blood testing
The day of the exam, you fast (no food ingestion 10 hours prior). For example, from 22 pm the night before if the blood test is at 8am. You can still drink as much water as you want. Do not take your usual medications. These will be taken after the blood test.
For different types of urine analysis
Refer to the instructions of the leaflet accompanying the container to collect urine.
The patient must be on an empty stomach for 6 to 8 hours before the gastroscopy takes place and, if possible, not to have smoked for a period of 12 hours.
The colon needs to be perfectly clean so as to allow a good visibility.
Three types of exams can be performed:
- Recto-sigmoidoscopy: Exam of the last 50 centimeters (20 inches) of the colon. The preparation involves an enema at home using Fleet (available in pharmacies) half an hour before the exam. The recto-sigmoidoscopy takes about 10 minutes.
- Left colonoscopy: Exam of the half of the colon. The required preparation consists of two enemas: the first one 2 hours ahead of time, and the second one half an hour before the exam. The left colonoscopy takes about 15 minutes.
- Full colonoscopy: Exam of the entire colon. For the three days before the exam, the patient will need to undertake a fiber-free diet (i.e. no vegetables, no fruits]. The preparation consists of the drinking of a saline solution the night before and the morning of the exam. Its objective is to wash out the system. This solution is available in pharmacies and can be prescribed by your general practitioner or your gastroenterologist (Colopeg, Klean-Prep, Fleet Phosphosoda….). By the end of the preparation, stools must be liquid and clear. This exam typically requires a pre-medication and takes 20 to 30 minutes.
This is an exam of the anus. The patient is lying down on his/her left side. It takes about 5 minutes.