All newborns should be screened for congenital hearing loss before 1 month of age, according to a recommendation from the US Preventive Services Task Force (USPSTF) published in July (US Preventive Services Task Force. Pediatrics. 2008;122:143-148). Those who do not pass this hearing test should then undergo otoacoustic emissions testing before they are 3 months old. The recommendation and a summary of evidence supporting it are available online at http://www.ahrq.gov/clinic/uspstf/uspsnbhr.htm.
Kuehn BM. Hearing Screening at Birth. JAMA. 2008;300(8):891. doi:10.1001/jama.300.8.891-c