Recommended counseling and testing for Special Populations
Ethnicity (patient and/or partner) Disorder and Tests
Cajun Tay-Sachs disease
DNA test - HEXA gene or Enzyme test - hexosaminidase A level

Source: Solomon, et, al., "The Clinical content of preconception care:genetics and genomics." AJOG, Supplement to December, 2008. S340-S344