Question 1

How many units is a 100 mcg dose of DSIP (5mg vial, 2ml diluent)?

Accepted Answer

4 units on a standard U-100 insulin syringe (0.04 ml). Mixing a 5mg vial of DSIP with 2ml of bacteriostatic water gives a concentration of 2.5 mg/ml. On a U-100 insulin syringe that means: 100 mcg = 4 units · 250 mcg = 10 units · 500 mcg = 20 units.

Question 2

What is the concentration of 5mg of DSIP in 2ml?

Accepted Answer

5mg ÷ 2ml = 2.5 mg/ml.

Question 3

Which syringe do these unit marks refer to?

Accepted Answer

A standard U-100 insulin syringe, where 100 units = 1 ml. On U-50 or U-30 syringes the same volume reads as half or 30% of the U-100 marks. These are mathematical conversions for organizational purposes only — not medical advice.

Dose	Draw volume	U-100 units
100 mcg	0.04 ml	4 U
250 mcg	0.1 ml	10 U
500 mcg	0.2 ml	20 U

DSIP 5mg in 2ml — syringe units chart