Question

solve the following parenteral dosage problem. give lidocaine 150 milligrams im stat from a vial labeled lidocaine 10%. how many milliliters should be given? milliliter(s) (simplify your answer. type an integer or decimal rounded to the nearest tenth as needed)

Explanation:

Step1: Convert percentage to mg/mL

A 10% solution means 10 grams per 100 mL. Since 1 gram = 1000 milligrams, 10 grams = 10×1000 = 10000 mg. So, a 10% solution is \(\frac{10000\space mg}{100\space mL}=100\space mg/mL\).

Step2: Calculate the volume

Use the formula \(V=\frac{D}{C}\), where \(D\) (desired dose) is 150 mg and \(C\) (concentration) is 100 mg/mL. Then \(V = \frac{150\space mg}{100\space mg/mL}\).

Answer:

1.5