Uncontrolled hyperglycaemia is associated with poor clinical outcomes among hospitalised patients with coronavirus disease 2019 (COVID-19).

This review provides a practical guidance on the use of the basal-bolus insulin regimen for management of hyperglycaemia in hospitalised patients.

Various case scenarios are provided to illustrate how to achieve optimal blood glucose control through adjustments in doses of prandial and basal insulin, the use of correctional insulin dosing and changes in timing and content of major and minor meals.

This guidance can be used for patients admitted for indications other than COVID-19 and for those in ambulatory care.