title: Oxygen saturation during preinduction placement of monitoring catheters in the cardiac surgical patient.
mesh_terms: D000281:Administration, Intranasal; D000328:Adult; D000368:Aged; D002404:Catheterization; D006801:Humans; D008875:Middle Aged; D008991:Monitoring, Physiologic / Q000295:instrumentation*; D009204:Myocardial Revascularization; D010100:Oxygen / Q000008:administration & dosage*
chemical_list: D010100:Oxygen