Appropriate bloods as necessary
Normal Insulin Regimen:
Pre-breakfast, Pre-Lunch, Pre-Tea, Pre-Bed
- Confirm dose and time of last insulin injection
- Confirm intake of food since last injection
(Children with diabetes need regular dietary intake – no longer than 2½ hours during day without carbohydrate)
Check blood glucose immediately
- Check blood ketones
- If ketotic – check venous blood gas
Is the child decompensated?
- Urinary ketones plus
- Blood gas pH <7.3 and/or
- Standard bicarbonate <15mmol/l
YES, decompensated
Follow Protocol for Management of DKA and liaise with Surgical Team regarding timing of operation
NO, not decompensated
Liaise with Surgical Team regarding length of the operation >30min or <30min?
Short Procedure <30 minutes
Nil by mouth
IV 5% Dextrose + 0.45% Saline at maintenance values
Check blood glucose every 30 minutes in Theatre + in Recovery
If Blood glucose <4.5mmol/l, give IV 10% Dextrose until blood glucose >11mmol/l for 1 hour, then decrease to 5% Dextrose + 0.45% Saline
Long Procedure >30 minutes
IV insulin infusion + IV 5% Dextrose + 0.45% Saline at maintenance + KCL to maintain plasma potassium 4-5mmol/l
Commence insulin infusion 0.03 units/kg/hour – (note time of last injection)
Aim to maintain blood glucose 7-13mmol/l
- Monitor blood glucose hourly (½ hourly in Theatre) using Blood Glucose Meter whilst insulin infusion running.
- Alter rate of insulin infusion in alloquots of 0.1ml/hour
(insulin infusion: 50 units Novorapid or Humalog in 50ml Normal Saline - therefore 0.1ml = 0.1 unit).
AIM TO MAINTAIN TARGET BLOOD GLUCOSE VALUES OF 7-13MMOL/L
- Expect steady state to be reached but small alterations may be required.
- If blood glucose rises by >3mmol/l/hour - INCREASE insulin rate by 0.1ml/hour.
- If blood glucose rises to >13mmol/l/hour INCREASE insulin infusion rate by 0.1ml/hour and continue to do so HOURLY until target range (7-13mmol/l) is again reached.
- If blood glucose <7.0mmol/l change immediately to 10% dextrose & 0.45% saline WITHOUT decreasing rate of insulin infusion.
- Minimum insulin infusion rate is expected to be 0.03u/kg/hour. Therefore, if blood glucose readings
falling towards 7.0mmol/l, change to 10% dextrose & 0.45% saline instead of decreasing rate of insulin infusion. - Continue IV insulin infusion until 30 minutes after subcutaneous insulin administered pre-meal.
- Discontinue IV fluids as the child is eating the meal.
- Ensure appropriate meal with carbohydrate content given.
BLOOD GLUCOSE MONITORING SHOULD TAKE PLACE IN THEATRE AND IN RECOVERY AREA HALF HOURLY – USE RECORD SHEET PROVIDED