Test ID: HCYSP
Homocysteine, Total, Plasma
Specimen Type 
Describes the specimen type needed for testing
Plasma EDTA
Specimen Required Defines the optimal specimen. This field describes the type of specimen required to perform the test and the preferred volume to complete testing. The volume allows automated processing, fastest throughput and, when indicated, repeat or reflex testing.
Container/Tube: Lavender top (EDTA) or plasma gel (EDTA)
Specimen Volume: 0.4 mL
Collection Instructions:
1. Fasting (12 hours, preferred but not required)
2. Immediately place specimen on wet ice.
3. Spin down and separate plasma from cells within 4 hours of draw.
4. Alternatively, if blood is not immediately placed on ice, plasma must be removed from cells within 1 hour of draw.
Specimen Minimum Volume Defines the amount of specimen required to perform an assay once, including instrument and container dead space. Submitting the minimum specimen volume makes it impossible to repeat the test or perform confirmatory or perform reflex testing. In some situations, a minimum specimen volume may result in a QNS (quantity not sufficient) result, requiring a second specimen to be collected.
0.15 mL
Reject Due To Identifies specimen types and conditions that may cause the specimen to be rejected
| Hemolysis | Mild OK; Gross OK |
| Lipemia | Mild OK; Gross OK |
| Icterus | Mild OK; Gross OK |
| Other | NA |
Specimen Stability Information Provides a description of the temperatures required to transport a specimen to the laboratory. Alternate acceptable temperature(s) are also included.
| Specimen Type | Temperature | Time |
|---|---|---|
| Plasma EDTA | Refrigerated (preferred) | |
| Frozen | ||
External
link
PDF
document
Excel
document
Word
document