Required volume(8 ml) * Required Concentration(5mg) = 40mg hydrocortisoneGiven concentration(100 mg/2ml) / 40mg hydrocortisone =
required volume of hydrocortisone = 0.8mL
So 0.8 ml of hydrocortisone are needed.
Final volume(8mL)- Volume of hydrocortisone (0.8mL)= Required volume of dilutant (7.2mL).
I hope this helps.
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