High sugar levels causes blood vessel damage, vascular remodelling leading to increased peripheral artery resistance. Also, body fluid volume increases in response to insulin resistance-induced hyperinsulinemia and hyperglycemia. Both increased peripheral vascular resistance and body fluid volume lead to increase in systemic blood pressure causing Hypertension.
Diabetes affects nerves which reduce one's sensitivity to pain from wound leading to repetitive traumas, wounds can get infected which may not heal fastly due to reduced blood supply. Sometimes, a bad infection never heals. The infection might lead to gangrene and amputation.
Prefer whole grains with fresh greens, moderate amount of protein, low fat and no added sugar/salt foods. It's important to include different foods in portion control to get balanced nutrition.
Redness, swelling, and itching at the injection site,changes in the feel of your skin, skin thickening (fat build-up), or a little depression in the skin (fat breakdown) weight gain are possible side effects
Yes, emergency room protocols have blood sugar check as one of the parameters. It may be done in patients with suspicion on deranged blood sugar levels.