MD order: dextromethorpan 10 mg q 4 h for a cough
Available: 5g/5 mL
How many tablespoons will be administered per dose?
To determine the number of tablespoons that will be administered per dose, we need to calculate the volume of the medication that corresponds to 10 mg of dextromethorphan.
Given that the available form of the medication is 5g/5 mL, we can convert the medication to milligrams by multiplying 5g by 1000 (since 1g = 1000mg).
5g * 1000 = 5000mg
Since 5 mL corresponds to 5000mg, we can calculate the volume of medication needed for 10 mg by setting up a proportion:
5 mL / 5000 mg = x mL / 10 mg
Cross-multiplying, we get:
5000 mg * x mL = 10 mg * 5 mL
x mL = (10 mg * 5 mL) / 5000 mg
x mL = 50 mL / 5000
x mL = 0.01 mL
Therefore, 0.01 mL of the medication is needed for a dose of 10 mg.
Since there are approximately 14.79 mL in 1 tablespoon, we can now calculate the number of tablespoons per dose:
0.01 mL / 14.79 mL = 0.000675 tablespoons
Therefore, approximately 0.000675 tablespoons will be administered per dose.
Note: It is important to round this value appropriately, as administering such tiny amounts accurately might be difficult or impractical.
To determine the number of tablespoons to be administered per dose, we need to convert the dosage of dextromethorphan from mg to mL, and then convert mL to tablespoons.
Given that the concentration of the available medication is 5g/5 mL, we can calculate the dosage in mL as follows:
10 mg * (1 g / 1000 mg) = 0.01 g
To determine the volume in mL, we divide the dosage in grams by the concentration:
0.01 g / 5 g/mL = 0.002 mL
Since there are 5 mL in a teaspoon and 3 teaspoons in a tablespoon, we can convert mL to tablespoons as follows:
0.002 mL * (1 tablespoon / 5 mL) = 0.0004 tablespoons
Therefore, approximately 0.0004 tablespoons will be administered per dose.