Enter the required details into the calculator to determine the correct dosage for RN Adult Medical Surgical Online Practice Assessment 3.0.

## Dosage Calculation Formula

The following formula is used to calculate the correct dosage from the ordered dosage and concentration.

Volume to Administer = Dosage Ordered / Concentration

Variables:

- Dosage Ordered is the prescribed amount of medication (mg)
- Concentration is the strength of the medication (mg/mL)
- Volume to Administer is the amount of medication to give (mL)

To calculate the volume to administer, divide the dosage ordered by the concentration.

## What is Dosage Calculation?

Dosage calculation is the process of determining the correct amount of medication to administer to a patient. This process involves understanding the prescribed dosage, the concentration of the medication, and the patient’s weight (if applicable). Accurate dosage calculation is critical for patient safety and effective treatment.

## How to Calculate the Correct Dosage?

The following steps outline how to calculate the correct dosage using the given formula.

- First, determine the prescribed dosage and the concentration of the medication.
- Next, determine the patient’s weight if calculating for weight-based dosage.
- Use the formula from above: Volume to Administer = Dosage Ordered / Concentration .
- For weight-based dosage, first calculate the total dosage by multiplying the patient’s weight by the dosage per kg.
- Calculate the volume to administer by plugging in the values.
- After inserting the variables and calculating the result, check your answer with the calculator above.

**Example Problem:**

Use the following variables as an example problem to test your knowledge.

Dosage Ordered = 500 mg

Concentration = 50 mg/mL

Patient Weight = 70 kg

Dosage per kg = 10 mg/kg

## FAQ

**1. What is the prescribed dosage?**

The prescribed dosage is the amount of medication ordered by the healthcare provider for the patient.

**2. How is the concentration related to the dosage calculation?**

The concentration indicates the strength of the medication, which is used to determine the volume to administer.

**3. How often should dosage calculations be performed?**

Dosage calculations should be performed whenever there is a new medication order or a change in the patient’s condition that affects medication requirements.

**4. Can this calculator be used for different medications?**

Yes, the calculator can be adjusted for different medications by changing the dosage ordered and concentration fields.

**5. Is the calculator accurate?**

The calculator provides an estimate based on the inputs provided. For exact figures, it’s best to consult with a healthcare professional or pharmacist.