[streetpreacher]

I'm sure that's a lay term or we're just screwing up something in the translation.

[jdm]

I even did a search for THCG, thinking maybe two letters were reversed. Still nothing.

[SoftballMominVA]

This is what I found out about the test itself -- as in what it tests for---

T * Problems in the development of the fetus' brain and spinal cord, called open neural tube defects. The quad marker screen can predict approximately 75-80% of open neural tube defects. * Genetic disorders such as Down syndrome, a chromosomal abnormality. The quad marker screen can predict approximately 75% of Down syndrome cases in women under age 35 and over 80% of Down syndrome cases in women age 35 years and older.