If a doctor prescribes 300 mg of a medication and it is available at 5 ml/800 mg, how much should be administered?

If a doctor prescribes 300 mg of a medication and it is available at 5 ml/800 mg, how much should be administered?

• A. 2.5 mL
• B. 1.8 mL
• C. 3.0 mL
• D. 1.5 mL

Answer: (B)

To determine the correct volume of medication that should be administered, we need to calculate how much of the medication corresponds to the prescribed dose of 300 mg. The formulation indicates that there are 800 mg of the medication available in 5 mL. To find out how many milligrams are in 1 mL, we can perform the following calculation: 1. **Calculate the concentration per mL**: - 800 mg / 5 mL = 160 mg/mL. Next, we can find out how many mL would contain the required 300 mg: 2. **Calculate the volume needed for 300 mg**: - Volume = Desired dose / Concentration = 300 mg / (160 mg/mL) = 1.875 mL. Since we typically round to a reasonable volume given in the options, we can express this value as approximately 1.8 mL. Therefore, the correct volume to administer is about 1.8 mL, reflecting the 300 mg dosage requested by the physician. This makes the correct answer appropriate as it corresponds to the calculation and the requirement stated in the prescription. Additionally, it is essential to ensure accuracy and proper dosage administration for patient safety and

To determine the correct volume of medication that should be administered, we need to calculate how much of the medication corresponds to the prescribed dose of 300 mg.

The formulation indicates that there are 800 mg of the medication available in 5 mL. To find out how many milligrams are in 1 mL, we can perform the following calculation:

1. Calculate the concentration per mL:

• 800 mg / 5 mL = 160 mg/mL.

Next, we can find out how many mL would contain the required 300 mg:

2. Calculate the volume needed for 300 mg:

• Volume = Desired dose / Concentration = 300 mg / (160 mg/mL) = 1.875 mL.

Since we typically round to a reasonable volume given in the options, we can express this value as approximately 1.8 mL. Therefore, the correct volume to administer is about 1.8 mL, reflecting the 300 mg dosage requested by the physician.

This makes the correct answer appropriate as it corresponds to the calculation and the requirement stated in the prescription. Additionally, it is essential to ensure accuracy and proper dosage administration for patient safety and