The specimen type must be written on the container and on the requisition. Place the specimen on ice and deliver to the laboratory immediately; pH will change with time. If transport is delayed, refrigerate the specimens at 2-8°C. If specimen contains particulate, cellular matter, or clots, centrifuge before testing.
If the specimen is collected in large vacuum-sealed container, it should be transferred into a heparinized blood gas syringe before transporting between Legacy Laboratory sites.