
Welcome to CTGT Genetic Testing
CTGT (Connective Tissue Gene Tests) an international provider specializing in molecular diagnostic testing services for hereditary genetic disorders.
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Genetic Testing
Your genes are the instructions in your DNA that are responsible for your eye and hair color, and other physical traits that make up who you are.
We offer testing for a wide variety of genetic testing.
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CTGT (Connective Tissue Gene Tests)
CTGT (Connective Tissue Gene Tests) Genetic Testing, a department of HNL Lab Medicine, is an international provider specializing in molecular diagnostic testing services for inherited genetic disorders.
We offer a comprehensive test menu and serves hundreds of leading healthcare providers and institutions from the US and around the world.
The company uses its proprietary analytic methods, mutation database, and technology to provide more than 3,300 unique tests covering over 1,000 genes.
How it Works
Selected the test(s) you would like to order, please follow these 4 easy steps to place your order.

Complete Requisition Form
Download the Requisition Form
Complete electronically and print OR print and complete manually.
All tests must be ordered by a physician and all results will be sent to the ordering physician. CTGT does not provide Direct-to-Consumer testing.
Detailed Instructions

Collect Specimen
Please be sure to review ALL instructions that apply to your specimen(s).
Specimen Instructions
Ship Order to CTGT
Ship all orders and specimens to:
Connective Tissue Gene Tests
6575 Snowdrift Road, Suite 106
Allentown, PA 18106 USA
Phone: (484) 244-2900
Before shipping, please be sure to review ALL instructions that apply to your specimen(s).

Receive Results
Duration and expectation for results
Results will be both faxed and mailed using the contact information provided on the requisition form.
Complete electronically and print OR print and complete manually.
All tests must be ordered by a physician and all results will be sent to the ordering physician. CTGT does not provide Direct-to-Consumer testing.
Detailed Instructions
Please be sure to review ALL instructions that apply to your specimen(s).
Specimen InstructionsConnective Tissue Gene Tests
6575 Snowdrift Road, Suite 106
Allentown, PA 18106 USA
Phone: (484) 244-2900
Before shipping, please be sure to review ALL instructions that apply to your specimen(s).
Results will be both faxed and mailed using the contact information provided on the requisition form.
Popular Tests
CTGT Genetic Testing
Updated Policies And News
Genome Sequencing: A Vital Tool Used in Identifying and Tracking New COVID-19 Variants
The Effect of Genetics on Individual Heart Health: Early Identification of FH Variations to Optimize Treatment
Test must be ordered by a Physician.
Familial hypercholesterolemia (FH) is a genetic disorder that is characterized by abnormally high blood levels of low-density lipoprotein (LDL) cholesterol, sometimes referred to as "bad cholesterol". This condition affects an estimated 1 in 250 people, and increases the likelihood of developing cardiovascular disease. In fact, FH is estimated to be the cause of 2-3% of heart attacks in individuals younger than age 60.
CTGT.net: A New Website Experience
We've refreshed our look and feel to better meet your needs.
CTGT's new website is not only user-friendly but also provides more advanced test search capabilities, additional methodologies, and a clean design suited for multi-platform usage.