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CYTOGENETIC STUDY, BLOOD, HIGH RESOLUTION

Test Code: CG HI RES
General Information: High resolution analysis is a special manipulation of the routine stimulated blood procedure designed to provide, at harvest, a large number of mitotic figures in late prophase or prometaphase. At this stage of mitosis the chromosomes are longer and less condensed. The goal, when G-banded, is that these chromosomes be at or above the 550 band level or greater, showing finer chromosomal detail than on routine blood chromosome analysis.
Indications:
  • Individuals with multiple congenital anomalies and mental retardation or developmental delay with a normal routine chromosome analysis
  • Individuals with a pattern of congenital anomalies consistent with a chromosomal abnormality
  • Individuals with multiple congenital anomalies and mental retardation or developmental delay and a normal prenatal chromosomal analysis
 
 


 
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