Question

a nurse is providing instruction to a client who has a new prescription for codeine oral solution 30 mg po every 6 hr prn pain. the amount available is codeine 10 mg/5 ml. how many tbsp should the nurse instruct the client to take 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: Calculate volume in mL

The available codeine is 10 mg/5 mL. The prescribed dose is 30 mg. We use the proportion $\frac{10\ mg}{5\ mL}=\frac{30\ mg}{x\ mL}$. Cross - multiplying gives $10x = 30\times5$, so $x=\frac{30\times5}{10}=15$ mL.

Step2: Convert mL to Tbsp

We know that 1 Tbsp = 15 mL. So if the volume is 15 mL, the number of tablespoons is $\frac{15\ mL}{15\ mL/Tbsp}=1$ Tbsp.

Answer:

1