Mental Retardation
Sat, 02/28/2009 - 15:33 — saif
Mental retardation : IQ below 70. 50-70 is mild mental retardation (most common)
Causes of mental retardation:
-Genetic: Down’s syndrome (most common), Fragile X syndrome (2nd most common)
-Prenatal: TORCH (toxoplasmosis, other: syphillis/AIDS/alcohol/drugs, Rubella/german measles, Cytomegalovirus/CMV, Herpes simplex)
-Perinatal: anoxia, prematurity, birth trauma
-Postnatal: hypothryoidism, malnutrition, toxin exposure, trauma