Before the colonoscopy, it is good to have intravenous fluids for nutritional supplementation, and you should consult your doctor for details.
Before doing colonoscopy usually need to take polyethylene glycol and other drugs for diarrhea to completely empty the intestinal tract, and 6-8 hours before the examination should be fasting and water. Some weak patients cannot tolerate prolonged starvation and may even experience hypoglycemic symptoms such as dizziness, blackness and cold sweat.
Therefore, once the symptoms of hypoglycemia appear, patients should be allowed to rest in bed in time, and in order not to affect the results of colonoscopy, usually through intravenous infusion of nutrients such as sugar, salt, amino acids, vitamins, electrolytes and other nutrients for parenteral supplementation, and wait for the patient’s body functions to recover and then carry out colonoscopy. The above treatment should be carried out in accordance with medical advice.