To determine the volume required for an 80 mg dose of Tramadol when the stock concentration is 50 mg per 2 mL, you can set up a proportion based on the stock concentration.
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Identify the stock concentration:
- 50 mg is present in 2 mL.
- Thus, the concentration is \( \frac{50 \text{ mg}}{2 \text{ mL}} = 25 \text{ mg/mL} \).
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Determine the volume required for 80 mg:
- If the concentration is 25 mg/mL, we need to find out how many mL are required for 80 mg.
- Set up the equation based on the concentration: \[ \text{Volume (mL)} = \frac{\text{Desired Dose (mg)}}{\text{Concentration (mg/mL)}} \]
- Substituting the values: \[ \text{Volume} = \frac{80 \text{ mg}}{25 \text{ mg/mL}} = 3.2 \text{ mL} \]
Therefore, you will require 3.2 mL of Tramadol Hydrochloride injection to administer an 80 mg dose.