Immigration Green Card medical examination requires blood work and urine collection
syphilis and gonorrhea. Screening for other STDs such as chlamydia or HIV may also be recommended in some situations but not required. Also, applicants younger than 15 y.o. can also be tested for gonorrhea and or syphilis if there is clinical suspicion of infection or a history of previous infection. This is the reason that blood and urine is collected from most applicants. Other reasons can be for the screening of tuberculosis, checking titers to evaluate immunity to certain diseases like chicken pox(varicella), measles, mumps, and rubella) or other medical issues. Of note, if you are squeamish about getting your blood drawn in general and figured you won't have to do so since you are younger than 15 y.o., well sorry, starting in October all applicants being screened for tuberculosis will be required to have bloodwork done by either the QuantiFeron or T-Spot blood tests (more on that in a later post).
The civil surgeon is required to use the Center for Disease Control and Prevention (CDC) Technical Instructions for Civil Surgeons in the evaluation and treatment of sexually transmitted disease and other disease. The civil surgeon must document all test results and treatment received by applicant before completing and signing the i-693 Form.