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Homocysteine
Test CodeHOMO
CPT Codes
83090
Preferred Specimen
1.0 mL plasma collected in a PST (LiHeparin tube)
Minimum Volume
Preferred 1mL
Minimum 14uL
Minimum 14uL
Other Acceptable Specimens
Plasma - EDTA (Lavender)
Serum - SST, Red Top, or Tiger Top
Serum - SST, Red Top, or Tiger Top
Specimen Stability
Ro0m Temp 4 days at 15 to 25 deg C
Refrigerated Plasma 4-weeks at 2 to 8 deg C
Frozen 10 months at -20 deg C
Refrigerated Plasma 4-weeks at 2 to 8 deg C
Frozen 10 months at -20 deg C
Last Updated: October 31, 2024
