Medical Definition of SPECTROMETER. 1. : an instrument used for measuring wavelengths of light spectra. 2. â specÂ·troÂ·metÂ·ric \Ëspek-trÉ-Ëme-trik\ adjective.
It is important to denote the proband, so that the relationship to other individuals can be seen and patterns established. In most cases, the proband is the first affected family member who seeks medical attention for a genetic disorder.
Proband must be a female and have documented SLE that meets ACR criteria. SLE must be diagnosed by and including age 40. Proband must have at least one biological sister â¥ 10 years of age and â¤ 45 who is available and willing to donate a blood sample and enroll in a longitudinal study. Both full and half siblings qualify.