If you are delivering 4L of oxygen and 3L of nitrous oxide to your patient, what is the percent of nitrous oxide being delivered?

To determine the percentage of nitrous oxide being delivered, you can use the formula for the concentration of a gas in a mixture. First, add the volumes of oxygen and nitrous oxide together:

4L (oxygen) + 3L (nitrous oxide) = 7L (total gas mixture).

Next, to find the percentage of nitrous oxide, you take the volume of nitrous oxide and divide it by the total volume of the gas mixture, then multiply by 100:

(3L of nitrous oxide / 7L total) * 100 = 42.857%, which can be rounded to 42.8%.

Thus, the answer indicating that approximately 42.8% nitrous oxide is being delivered is correct. Understanding this calculation is essential in settings where precise gas mixtures are needed, such as in anesthesia practice.