Biology Reference
In-Depth Information
children. Both have been deaf since birth, attended residential schools for
the deaf, and consider themselves to be members of the Deaf community.
They indicated that having healthy children is most important to them.
Having healthy, deaf children would be their preference.
6.1.1 Medical History
M.S.'s mother reports that she had rubella during the fourth month of her
pregnancy with M.S. M.S.'s medical history is otherwise unremarkable.
Pregnancy, delivery, and medical history are unremarkable for D.S.
6.1.2 Audiologic Findings
Based on audiometric studies, M.S. has a profound sensorineural hearing
loss with pure-tone averages of 101 on the right and 100 on the left. D.S.
also has a profound sensorineural hearing loss bilaterally, with pure-tone
averages of 108 on the right and 95 on the left. Neither M.S. or D.S. has
obtained any benefit from amplification.
6.1.3 Family History
M.S. has three siblings, two of whom are hearing, and one of whom has a
high-frequency hearing loss (Fig. 9.1). The brother with the hearing loss has
FIGURE 9.1. Family history of M.S. and D.S. M.S. was diagnosed with congenital
rubella syndrome and D.S. with nonsyndromic deafness. Their chance of having deaf
children is low.
