| A B C D E F G H I J K L M N O P Q R S T U V W X Y Z # |
HOMOCYSTEINE, TOTAL, PLASMA
Test CodeLAB304393
CPT Codes
83090
Preferred Specimen
One Dark Green top tube, collect and immediately place on ice
Minimum Volume
1 mL blood
Required for Testing: 0.5 mL plasma
Required for Testing: 0.5 mL plasma
Other Acceptable Specimens
Light Green top tube, collect and immediately place on ice.
Instructions
Must collect and transport to lab on ice. Fasting preferred.
Sample must be centrifuged within one hour of collection. Plasma must be removed from the red cells and put into aliquot tubes following centrifugation.
Sample must be centrifuged within one hour of collection. Plasma must be removed from the red cells and put into aliquot tubes following centrifugation.
Transport Container
Transport Temperature
Frozen
Specimen Stability
Ambient: On ice for 6 hours
Refrigerated 14 days Frozen: 1 year
Refrigerated 14 days Frozen: 1 year
Methodology
Chemiluminescent Immunoassay
Setup Schedule
Sunday-Saturday
Reference Range
| Age | Sex | Reference Interval (umol/L) |
| 5 days-12 months | Female | 2.9-10.0 |
| 1-6 years | Female | 2.8-7.6 |
| 7-11 years | Female | 3.4-8.5 |
| 12-14 years | Female | 4.1-10.4 |
| 15-18 years | Female | 4.9-11.9 |
| ≥ 19 years | Female | 5.0-12.0 |
| 5 days-12 months | Male | 2.9-10.0 |
| 1-6 years | Male | 2.8-7.6 |
| 7-11 years | Male | 3.4-8.5 |
| 12-14 years | Male | 4.7-10.4 |
| 15-18 years | Male | 5.5-13.4 |
| ≥ 19 years | Male | 5.0-12.0 |
Performing Laboratory
West Virginia University Hospital, Inc.
