title: The reliability of laboratory data from blood samples collected through pulmonary artery catheters.
abstract: Blood samples obtained through quadruple-lumen Swan-Ganz catheters in ten critically ill patients provided reliable results after withdrawal of a total of 2.2 mL (including 1.2 mL of dead space) for hematocrit tests and 3.2 mL (including 1.2 mL of dead space) for plasma sodium tests.
mesh_terms: D000328:Adult; D001800:Blood Specimen Collection; D002408:Catheters, Indwelling; D019411:Clinical Laboratory Techniques / Q000379:methods*; D006801:Humans; D011651:Pulmonary Artery