Normoglycaemia : insulin displays rapid variations in blood concentrations
-secretory peaks q 5–10 min
-oscillations q 60–120 min
Normal insulin secretion stimulated by intravenous glucose
-Biphasic pattern
: Early peak 3–5 min & last for 10 min after the beginning of the tes
: Follow by : slower & more progressive phase lasts as long as glucose infusion.