Question

a nurse is preparing to administer levothyroxine 0.25 mg iv bolus stat. available is levothyroxine injection 100 mcg/ml. how many ml should the nurse administer? (round the answer to the nearest tenth. use a leading zero if it applies. do not use a trailing zero.)

Explanation:

Step1: Convert mg to mcg

We know that \( 1\space mg = 1000\space mcg \), so for \( 0.25\space mg \), we calculate \( 0.25\times1000 = 250\space mcg \).

Step2: Calculate volume in mL

The formula for volume \( V \) (in mL) is \( V=\frac{\text{Desired dose (mcg)}}{\text{Concentration (mcg/mL)}} \). Given desired dose is \( 250\space mcg \) and concentration is \( 100\space mcg/mL \), so \( V = \frac{250}{100}=2.5\space mL \).

Answer:

\( 2.5 \)