Apr 06, 2018 · The gradation markings for U-100 insulin of each size are: Generally speaking, you should size your syringe to your maximum injection dosage. For example, if you are taking 20 units per shot, you could use either a 0.5cc/50 unit syringe or a 0.3cc/30 unit syringe. If you are taking 60 units, use a 1cc/100 unit syringe.
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