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Order: Tobramycin sulfate 228 mg added to 500ml Normal Saline IV bag for infusion IV over...

Order: Tobramycin sulfate 228 mg added to 500ml Normal Saline IV bag for infusion IV over one hour, t.i.d.

Supply: Nebcin (Tobramycin sulfate) 40 mg/ml.

How much Tobramycin do you add to the Normal Saline?

Solutions

Expert Solution

Use the standard formula

Desired(D) *Vehicle(V) / On Hand (H)

Desired dose 228 mg

On Hand 40 mg per ml

Vehicle = 1 ml

Devide 228 mg ( Desired)with 40 mg ( drug on hand) to get 5.7

Multiply 5.7 with 1ml ( Vehicle) to get 5.7 ml

Computation :

228/40*1= 5.7 *1 ml = 5.7 ml

Nightingale answered 2 years ago
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