A patient receives 2900mL mL of an IV {\rm IV} solution containing 1g g of glucose per 100 mL.
How much energy, in kilojoules, does the patient obtain from glucose, a carbohydrate?
I don't understand the g g and the mL mL but 2900 mL x 1 g glucose/100 mL = 29 g glucose.
I think glucose is about 4 calories/g; therefore, energy = 4 cal/g x 29g = ?
To determine the amount of energy obtained from glucose, we need to calculate the number of grams of glucose the patient receives and then convert it to kilojoules.
We are given that the IV solution contains 1g of glucose per 100 mL. The patient receives a total of 2900 mL, so we can calculate the amount of glucose in grams using the following equation:
Amount of glucose (in grams) = (Total mL / 100 mL) * 1g
Substituting the given values:
Amount of glucose = (2900 mL / 100 mL) * 1g
= 29 * 1g
= 29g
Now, to calculate the energy obtained from glucose, we can use the conversion factor that 1g of glucose provides approximately 17 kilojoules (kJ) of energy.
Energy obtained from glucose (in kilojoules) = Amount of glucose (in grams) * 17 kJ/g
Substituting the calculated amount of glucose:
Energy obtained from glucose = 29g * 17 kJ/g
= 493 kJ
Therefore, the patient obtains 493 kilojoules of energy from the glucose present in the IV solution.