Questions: The physician's order is for Demerol 65 milligrams IM every 4 hours as needed for pain. The Demerol label reads 100 milligrams in 2 milliliters. What do you give to the patient?
A) 0.8 mL
B) 2 mL
C) 1.3 mL
D) 5.2 mL
Transcript text: The physician's order is for Demerol 65 milligrams IM every 4 hours as needed for pain. The Demerol label reads 100 milligrams in 2 milliliters. What do you give to the patient?
A) 0.8 mL
B) 2 mL
C) 1.3 mL
D) 5.2 mL
Solution
Solution Steps
To determine the correct dosage in milliliters, we need to calculate the volume of Demerol that contains 65 milligrams. We know from the label that 100 milligrams is contained in 2 milliliters. We can set up a proportion to find the volume that corresponds to 65 milligrams.
Step 1: Determine the Dosage Required
The physician's order specifies a dosage of 65mg of Demerol.
Step 2: Understand the Concentration of the Medication
The label indicates that 100mg of Demerol is contained in 2mL. This gives us the concentration of the medication.
Step 3: Set Up the Proportion
To find the volume V in milliliters that corresponds to 65mg, we can set up the following proportion:
VmL65mg=2mL100mg