the body
needs a constant level of sugar in the blood
Basic
Requirements
What happens when you eat
In a non
diabetic state, a background level of insulin is present in the blood stream
to cope with background glucose (normal BG range is 4 – 7 mmol/l) When BG
rises after glucose absorption from the gut, insulin is pulsed into the
hepatic portal vein from storage in the pancreas. The amount is carefully
controlled and mirrors the level of BG
It may be seen
from this why a fast acting and longer acting insulin is often used. The
longer acting for background cover, the faster acting for a glucose
challenge.