SLHS 4801 Final Exam Marking Scheme

SLHS 4801 Final Exam Marking Scheme Endogenous - ANSWER- genetic HL (w/in the genes) What percent of HLs are genetic? - ANSWER- about 50% Exogenous - ANSWER- acquired HL, non-genetic origin Syndromic HL - ANSWER- accompanied by other structures and systems Non-syndromic HL - ANSWER- not accompanied by other abnormalities can be genetic or non-genetic autosomal dominant - ANSWER- Deaf parent (Dd) Hearing parent (dd) produce 2 deaf children (Dd), and two hearing children (dd) autosomal recessive - ANSWER- carries parents (Rr) produce 1 hearing child (RR), two carrier children (Rr), and a deaf child (rr) X-linked - ANSWER- affected males, female carriers Mitochondrial - ANSWER- carried by females all offspring receive Pedigrees - ANSWER- the process of interpretation of the info displayed as a family tree. It is constructed using a standardized set of symbols and sill include information about the disease status of each individual. Congenital - ANSWER- born with it Prenatal - ANSWER- occurs before birth Perinatal - ANSWER- occurs during birth or shortly before or after Postnatal - ANSWER- after birth otologic evaluations - ANSWER- otoscopy or pneumatic otoscopy case history blood work imaging Symptoms - ANSWER- otalgia : ear pain HL? Family history? Trauma? Hearing aid use? Tinnitus, otorrhea (discharge), dizziness or vertigo Outer ear - ANSWER- pinna cartilaginous EAM (outer 2/3) bony EAM (medial 1/3) How does the OE & ME figure into threshold values? - ANSWER- frequency resonance of OE & ME Agenesis - ANSWER- failure to form the pinna Anotia - ANSWER- absence of pinna Microtia - ANSWER- small, deformed pinna Atresia - ANSWER- closed EAM Stenosis - ANSWER- narrowing of EAM Malformations of the OE results in? - ANSWER- conductive HL with mild to moderate HL (30-50 dB HL)