If a patient feels a cramping sensation in their abdomen after a colonoscopy, it is advisable that they should do/have which of the following?

  • Eat and drink as soon as sedation has worn off.

  • Drink 500 mL of fluid immediately to flush out any gas retained in the abdomen.

  • Have half hourly blood pressure performed for 12 hours.

  • Be nursed flat and kept in bed for 12 hours.