1. Determine the type of specimen (plasma or serum) required for the following tests:
Fasting blood sugar ___________________________
Creatinine ___________________________
Coagulation studies ___________________________
# Fasting blood sugar
Stat/Line draws: 3 mL green/yellow-top (plasma separator) tube Routine requests/off-site specimens: 3.5 mL gold-top (serum separator) tube 4 mL grey-top (Na fluoride/K oxalate)
2 mL plasma; minimum 0.5 mL. Special notes: Place specimen on ice, or centrifuge and separate plasma from cells.
# Creatinine
Stat/Line draws: 3 mL green/yellow-top (plasma separator) tube Routine requests/off-site specimens: 3.5 mL gold-top (serum separator) tube.
Specimen required: | 2 mL serum or plasma; minimum 0.5 mL |
# coagulation studies
Citrated plasma
citrated plasma derived from whole blood. Specimens should be collected into tubes containing 3.2% sodium citrate (109 mM) at a ratio of 9 parts blood and 1 part anticoagulant.
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