| Codeine Contin should be used with caution preoperatively and within the first 24 hours postoperatively. |
| As a result, all women who are considered at risk for possible pregnancy are instructed to have a pregnancy test performed preoperatively. |
| In the United States erythropoetin injections or autologous blood donations, given preoperatively, are commonly used. |
| All patients routinely receive a prophylactic dose of intravenous antibiotics preoperatively. |
| Total parenteral nutrition was administered preoperatively, and complications were monitored. |
| The use of aspirin preoperatively is shunned by surgeons in noncardiac surgery. |
