Hi,
if you see a low blood sugar, there is no need to go to the hospital, the correct thing to do is to take about 10 - 15 g of fast acting carbs (10 g of sugar, small glass of juice etc). Test again
in 15 - 20 minutes and you should see your sugars coming up. You can then
eat your next planned meal.
Alternatively if you see that low number and you were going to eat, then eat already.
make sure your monitor your blood sugar regularly so you can catch lows before they get too low.