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Neonatal Screening
Question | Answer |
---|---|
what are the main principles of a good screeing test | simple, safe, precise, naormal range of results understood, acceptable to carry out, agreed policy for management of results |
what is sensitivity of testing | ability to detect +ve results |
what is specificity of testing | ability to identifying -ve results |
what is PKU | a deficiency of penylalinine hydroxylase |
what effect does PKU | phenylalinine is deposited in body tissue affecting brain development |
what prognosis does PKU have | if detected, normal, if undetected sever learing difficulties |
what is cystic fibrosis | faulty gene controlling movement of salt causing increased mucous |
what are some of symptoms of CF | failure to thrive, weightloss, malnutrition |
what is the treatment for CF | physio to move mucus, antibiotics for infection, pancreatic enzyme replacement therapy, bronchodilators and steroids |
what are some causes of hearing loss | los of conductive hairs, malfoprmation of ossicles or ear canal, inner ear or neural problems, acquired through infection |
what does MCADD stand for | Medium Chain Acyl co-enzyme A Dehydrogenase Deficiency |
what can MCADD result in | coma and sudden death through infection or fasting |
what is the management for MCADD | avoid fasting, maintain glucose intake during infection |
what is the half life of a RBC from someone suffering from sickle cell desease | 17days |
what is tay sachs disease | absence of enzyme hexosaminidase A |
what is the consequence of tay sachs disease | build up of lipid ganglioside affecting nerve cells in the brain |
what is the prognosis of tay sachs disease | poor, leads to early death in childhood |