how many gtts in ml
If you are refering to the drops used in IV sets, that depends on the drop factor. They are either 15gtts/ml, 20gtts/ml or 60gtts/ml. Then the 3gtts work out to: 0.2ml, 0.15ml or 0.05ml. EDIT: Medication droppers are calibrated to deliver 20gtts/ml, so 3gtts is 0.15ml.