Question

18. The nurse practitioner orders an IVPB with a medication at 5 mg/kg. The medication is available in a vial labeled as 10 mg/4 mL. The patient weighs 110 lb. The nurse will administer _____ mL of medication.

Show your work.

Answer 1

Given information:

Medication to administer at dose of 5mg/kg

Medication available : 10mg/4mL

Patient weighs 110lb

Converting weight from pound ( lb ) to kilograms ( kg )

  1 lb = 0.454 kg

110 lb = 110 × 0.454 kg

=49.94kg

After rounding off to nearest whole number

110 lb = 50kg

Prescribed dose is 5mg / kg

The medication required for a body weight of 50 kg is

= 5mg × 50 kg

= 250mg

Drug supply available is 10 mg / 4 mL

Hence,

D

X = ---------- × Q

H

D - desired dose

H - Drug supply availble

Q - Quantity

X - Required dosage

250mg

X = ---------------- × 4m L

10mg

250

X = ---------------------- × 4

10

  

X = 100 mL

The nurse will admisiter 100 mL of medication .