GC LabTech is your San Antonio lab for plasma donation testing! We offer various testing methods with fast and friendly customer service. Below is a list of what GC LabTech tests for in samples. The team at GC LabTech incorporated many years of laboratory experience to create one of the most efficient testing processes within the Source Plasma
industry. If you have any questions about the plasma donation testing, you can always contact us!

Anti-HBV, Anti-HCV, Anti-HIV 1&2 Plus O

Viral Marker Testing

EIA/ELISA testing for Anti-Hepatitis B Surface Antigen, Anti-Hepatitis C Virus and Anti-Human Immunodeficiency Virus 1 & 2 Plus O. Supplemental testing is performed on all reactive samples.

HBV, HCV, HIV, HAV, Parvovirus-B19

Nucleic Acid Testing

Nucleic Acid Testing, using pools of up to 96 samples each, for Hepatitis B Virus, Hepatitis C Virus, Human Immunodeficiency Virus, Hepatitis A Virus and Parvovirus-B19.

Total Protein

In vitro test for the quantitative determination of Total Protein in human serum.

Serum Protein Electrophoresis

Automated Serum Protein Electrophoresis with accurate relative quantification of individual protein fractions through direct detection. Report offered in five major fractions: Albumin, Alpha-1, Alpha-2, Beta, and Gamma.


Syphilis screen utilizing a fully-automated Rapid Plasma Reagin methodology. Reactive samples are confirmed with a treponemal assay.

Blood Type & Antibody Screen

ABO blood grouping and Pooled Cell Unexpected Antibody Screen utilizing gel chromatography.

Anti-VZV IgG Antibody

Quantitative measurement of the titer for human antibody (IgG subtype) against Varicella-Zoster Virus performed with EIA/ELISA methodologies.

Anti-Tetanus Toxoid IgG

Screening available for specialty collection programs. Measurement of specific IgG antibodies against tetanus toxoid (T. Tox) performed with EIA/ELISA methodologies.


Quantitative measurement of the antibody to HBsAg after HBV vaccination or determination of
HBV immune status. Performed by Chemiluminescent Microparticle Immunoassay (CMIA).

Need More Options?

Key Advantages of GC LabTech:
– Sample Turnaround Time Within 3 Business Days
– Donor Protein Testing (SPE/TP) Typically Completed Within 24 Hours of Receipt
– All Plasma Testing (includes confirmatory/supplemental) from ONE 3mL Tube
– No Serum Pour-Off (aliquoting) Required by Collection Center Staff
– Plasma and Serum Samples Can Be Received < 25℃.
– Plasma and Serum Samples Do Not Require Sorting for Shipping
– Up to 360 Plasma and Serum Tubes Per Shipping Container
– Paperless Order/Result Process (Electronic Interface)
– Competitive Plasma Testing Fees, Discounts Available for Larger Donor Populations
– Includes All FDA-Required Source Plasma Testing
– Laboratory Testing for Specialty Plasma Programs (Anti-Tetanus, Anti-VZV, Anti-HBS,
– Additional Test Menu Options Available Upon Request
– Fast, Friendly and Accurate Customer Service

GC LabTech is a registered establishment with FDA (USA) and fully accredited by CLIA, College of American Pathologists, and the International Organization for Standardization (ISO) 15189. GC LabTech is also licensed by the California Department of Public Health for Out of State Testing and certified by the International Quality Plasma Program by the Plasma Protein Therapeutics Association. GC LabTech has also successfully participated in audits from the Korean Ministry of Food and Drug Safety and multiple source plasma manufacturers.

GC LabTech is now accepting new source plasma customers so contact us today to take full advantage of everything GCLT has to offer: competitive testing fees, reduced sample testing volumes, efficient sample shipping processes and more!