Question

Order: Phenergan 12.5 mg IM

Supply: Phenergan 25 mg/mL

Give: ________ mL

Order: Thorazine 35 mg IM

• Supply: Thorazine 25 mg/mL
• Give: ________ mL

Order: metroprolol 25 mg

• Supply: metoprolol 50 mg/tab
• Give: ________ tablet (s)

Answer 1

phenergan---

supply is given phenergan 25 mg/mL means

25 mg of phenergan is present in 1 ml

Then 1 mg of phenergan requires = (1/25) ml

So, 12.5 mg of phenergan requires= (1/25)× 12.5 = 0.5 mL

Ans --------- GIVE : 0.5 mL

Thorazine--

supply is given that Thorazine 25mg/ml means

Thorazine 25 mg present in 1mL

1 mg present in (1/25) mL

So, Thorazine 35 mg present in (1/25)×35 = 1.4 mL

Ans -- GIVE: 1.4 mL

Metoprolol

supply is given metoprolol 50mg/tab means

50 mg of metoprolol present in 1 tab

1 mg of metoprolol present in (1/50) tablet

25 mg of metoprolol present in (1/50)× 25 = 1/2 tablet.

1/2 tablet means 0.5 tablet.

Ans---- GIVE: 1/2 tablet.