Question about how mL, mg, and cc are all related...

[LukeSitewalker]

Question about how all breakdown and relate to one another. A for instance question...


Lets say patient A has a 400 cc bag of liquid DILAUDID or DILAUDID-HP. For moderate to high tolerance of opiates in general, what would be the average to high dose in ml or cc's? I see online it says 4mg is an average starting dose, but someone with a high tolerance could use around 40mg+ to receive a strong effect. Now how does that lets say 40mg dose convert to ml basically, so you can use a 1 CC syringe. How much water? How many medium level ml doses is in a 400 cc bag? Thanks.

 

[Kittycat5]

What is the concentration? If you know how many mg/ml it is simple. If a 400 ml (cc is the same thing as ml) has 1mg/ml than you need 4ml to get 4mg.

 

[LukeSitewalker]

cc is not the same as a ml. There is 100ml in 1 cc.

 

[Kittycat5]

cc is not the same as a ml. There is 100ml in 1 cc.

No they are the same. 1cc=1ml

https://en.wikipedia.org/wiki/Cubic_centimetre

 

[torboy]

1 cc is one mL. These are measures of Volume, or the amount of physical space the substance being measured actually takes up. The term milligram (mg) is a measure of weight, and the volume (the ml/cc) needed to make up a mg depends upon the density of the substance, which is expressed in weight/volume (i.e. mg/ML, g/ml, mg/dL, etc.) . Water is the reference point for measuring density. The density of H2O is 1 mg/mL. As might be applied to a drug, the density reflects the volume we need to draw into a measuring device to make a certain dose, which is usually measured on terms of weight in milligrams (mg) or grams (g), through we usually use mg for this. So if the solution is in the concentration of 1,000 mg / mL (we would read the fraction bar here as "per") and we need to draw a dose of 500 mg. , then the math equation works like this: A.) We know the concentration is 1,000 mg per 1 mL of solution. (Any time any type of measurement unit appears by itself, by convention it has the coefficient of 1, unless specifically stated otherwise.) B.) We know that the 500mg is 1/2 of the 1,000mg. the mathematical operation is "divide by 2". C.) In order to have a balanced equation, what we do to one side of the equation must be done to the other side equation. Therefore, we then have 1 mL / 2. D.) 1 mL /2 = 0.5 or 1/2 mL. It could also be expressed this way, as an algebraic expression: 1,000 mg 1 mL ------------ = ----------- 500 mg x mL Solve for x by cross-multiplying: 500 * 1 = 1,000 * x We solve 500 * 1, and are left with: 500 = 1,000 * x We know that where A, B, and C, are different numbers, that it follows that if A * B = C that C / B = A, and C / A= B. This is the inverse and associative laws of multiplication and division. so we are left with 500/1,000. 500/1,000 = 0.5 , or 1/2 mL. I hope this helps you all out with your calulations.