Phleb Order of draw

Blood Culture

Additives: nutrient broth or SPS

Department: Microbiology

Drawn in pairs: 1 aerobic and 1 anaerobic

Discard tube

Clear or Red; used to discard to prevent contamination of additives

Light Blue top

Additive: Sodium Citrate

Yields: Plasma

Department: Hematology

Inversions: 3-4 times

Red plastic

Additive: Silica

Yields: Serum

Department: Chemistry

Inversions: none

Gold/Tiger/Marble/SST

Additive: Silica, Thixotropic gel

Yields: Serum

Department: Chemistry

Inversions: 8-10

Light Green

Additive: Lithium Heparin and Thixotropic gel

Yields: Plasma

Department: Chemistry

Inversions: 8

Dark Green

Additive: Sodium Heparin

Yields: Plasma

Department: Chemistry

Inversions: 8

Pink

Additive: Potassium EDTA

Yields: Plasma

Department: Blood Bank

Inversions: 8

Lavender

Additive: EDTA

Yields: Plasma

Department: Hematology

Inversions: 8

Dark blue w Lavender

Additive: EDTA

Yields: Plasma

Department: Toxicology

Inversions: 8

Dark Blue w Red stripe

Additive: None

Yields: Serum

Department: Toxicology

Inversions: 8

Gray

Additive: Sodium Fluoride and Potassium Oxalate

Yields: Plasma

Department: Chemistry

Inversions: 8