TORCH screening
Also written as: TORCH — Toxoplasmosis, Other, Rubella, Cytomegalovirus, Herpes
Laboratory testing for maternal infections that can cause congenital abnormalities: Toxoplasmosis, Other, Rubella, Cytomegalovirus, and Herpes simplex.
Full Definition
TORCH screening refers to a panel of blood tests performed during pregnancy to detect maternal infections that pose risks for vertical transmission and fetal complications. The acronym stands for Toxoplasmosis, Other infections (including syphilis, varicella, parvovirus B19), Rubella, Cytomegalovirus (CMV), and Herpes simplex virus. These pathogens can cross the placenta and cause serious congenital infections, growth restriction, developmental delays, or structural abnormalities. The screening typically involves testing for both IgG and IgM antibodies to determine immune status and identify acute infections requiring intervention.
Usage
Usage note: Always written in all caps as an acronym.
In Context
- "TORCH screening revealed positive CMV IgM antibodies indicating recent maternal infection." — Laboratory report
- "The patient's TORCH titers showed immunity to rubella but susceptibility to toxoplasmosis." — Prenatal record