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If you are administering medicine to yourself or someone else, you need to have a medical professional check your math....otherwise, if this is a homework question, nobody is likely going to die if you miscalculate.

You could expect the syringe to be marked in tenths of mls. 1 ml of distilled water at 4 degrees Celsius has a mass of 1 gram. Since 100 mg = 0.1 gram and 0.1 gram of distilled water would have the volume of 0.1 ml you would draw at least 0.1 ml and give the injection.

You would need to adjust the volume depending on the density of the material you are injecting.

If the material is denser than water you would dispense less. The multiplier would be the reciprocal of the material's specific gravity.

If you are asking how many ml of a solution containing X mg of the active ingredient, you would need to find out how many mg of the active is in a given quantity of the solution. That may be given in mg/ml, ppm or percent. If you have something that is 100mg/ml you would draw up at least 1 ml of the solution.

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14y ago
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3y ago

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Q: What if you have 3ml syringe you need to give 100mg how much do you draw up?
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