Question

a nurse is preparing to administer phenytoin 100 mg iv bolus every 8 hr. available is phenytoin injection 50 mg/ml. how many ml should the nurse administer per dose? (round the answer to the nearest whole number. use a leading zero if it applies. do not use a trailing zero.)

Explanation:

Step1: Identify the formula

To find the volume (in mL) of the injection needed, we use the formula: \(\text{Volume (mL)}=\frac{\text{Dose (mg)}}{\text{Concentration (mg/mL)}}\)

Step2: Substitute the values

The dose is \(100\) mg and the concentration is \(50\) mg/mL. Substituting these values into the formula, we get:
\(\text{Volume (mL)}=\frac{100\space\text{mg}}{50\space\text{mg/mL}}\)

Step3: Perform the calculation

\(\frac{100}{50} = 2\)

Answer:

\(2\)