The vet said that it seems that Simba's treatment is working so to still give him 3u but to keep an eye on him and test again 5 hours after the shot
Please make sure to test two hours after the injection - do not wait 5 hours as you vet said!
Seconding what Tanya said... Ana, PLEASE test again
no later than two hours after the shot, to get an idea of how the insulin cycle may go.
This is the lowest pre-shot you've given insulin at, so we have no data to show how Simba may respond....
If you test him 2 hours after the shot, and he's dropping a bit too fast you can give a little ordinary food to 'steer' the curve to slow it down, and/or to prevent the blood glucose dropping too low.
If he's dropping
really fast, and it looks like he really will drop too low, then you may need to intervene even further.
Do let us know what his BG is 2 hours after the shot ('+2') if you can.
I have fed him but I haven't given him any insulin yet.
His levels were going up so I thought it would be ok to give him the 3u
The BG went up in response to the food, so the later preshot was no longer a 'true' number.
That's why, if the number is little low at preshot, we sometimes wait ('stall')
without feeding to see if the number is rising on it's own, and is high enough to give that dose of insulin.
This lower preshot is a good sign, and very nice to see!
But it'll be important to monitor Simba carefully up until the peak of the cycle (till around +5, maybe).
.