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ORDER OF DRAW

TUBE COLORS AND TESTS

TermDefinition
YELLOW TOP TUBE CONTAINING SPS USED IN MICROBIOLOGY FOR BLOOD CULTURES
LIGHT BLUE TUBE WITH SODIUM CITRATE USED IN COAGULATION STUDIES, MUST HAVE A 9:1 RATIO, FULL TUBE ,TESTS INCLUDE PT, PTT, D-DIMER, aPTT
PLAIN RED TOP TUBE, NO ADDITIVES BLOOD IS ALLOWED TO CLOT, SERUM IS USED FOR TESTING PURPOSES. USUALLY TEST FOR MEDICATIONS EX. THEOPHYLLINE
GOLD OR RED AND BLACK SST TUBES CONTAINING THIXOTROPIC GEL AFTER BLOOD IS SPUN DONE SERUM IS USED FOR TESTING. MOSTLY CHEMISTRY TESTS ARE DONE. EX. CMP, LIPD, TSH
GREEN TOP TUBE, ADDITIVES MAY BE LITHIUM, SODIUM OR AMMONIA HEPARIN TEST DEPENDS ON THE ADDITIVE. TEST FOR AMMONIA IS A STAT AND MUST BE KEPT ON SLUSHY ICE UNTIL TEST PERFORMED LA
LAVENDER TOP TUBE WITH ADDITIVE EDTA TESTING IN HEMATOLOGY, EX. CBC, HGB, HCT, SED RATE (ESR), GLYCOHEMOGLOBIN A1C
GRAY TOP TUBE WITH ADDITIVES POTASSIUM OXALATE, AND SODIUM FLUORIDE TUBE USED FOR TESTING GLUCOSE AND ETOH. DO NOT PREPARE SKIN USING ALCOHOL WHEN TESTING ETOH