Limiting the number of available drug concentrations is a standard strategy to decrease the potential for error. I am interested in those institutions that do not stock heparin in either the 10,000 and 20,000 unit/mL concentrations. If you have eliminated these high concentrations, what were the barriers you had to overcome? Examples: higher concentrations are need for dialysis machines or needed for SQ prophylactic doses of heparin in bariatric patients.