Laboratory Testing for USCIS Immigration Medical Exams
Understand every required lab test — syphilis, gonorrhea, TB blood testing — and how to interpret your results with confidence.
Medical Disclaimer: The information on this page is for educational purposes only and does not constitute medical advice. Always consult a licensed Civil Surgeon or qualified healthcare provider for guidance specific to your immigration medical exam.
Laboratory Testing Articles & Guides
Clear, plain-language guides to every required lab test in the USCIS immigration medical exam.
Required Laboratory Tests for Form I-693
Complete overview of all USCIS-mandated laboratory tests, who requires them by age, and how results are documented.
Syphilis Testing for Immigration
Explains the RPR/VDRL syphilis screening test, what reactive results mean, and confirmatory testing requirements.
Gonorrhea Testing for Immigration
Details gonorrhea culture or NAAT testing requirements, who needs it, and how results affect the I-693.
TB Blood Testing (QuantiFERON-TB Gold)
In-depth guide to the QuantiFERON-TB Gold blood test, the preferred TB screening method for immigration.
Understanding Your Lab Results
Plain-language guide to reading and understanding your immigration lab results before your follow-up appointment.
How Long Do Lab Results Take?
Explains typical turnaround times for each required test and how they affect your overall I-693 completion timeline.
Frequently Asked Questions
Quick answers to the most common questions about immigration lab testing.
Ready to Complete Your Immigration Lab Testing?
All required lab tests included in our all-inclusive flat fee. Same-day appointments available.