A 42-Year-Old Patient Who Was Adopted at Birth Is Diagnosed

A 42-year-old patient who was adopted at birth is diagnosed with early Huntington's disease ( HD ) . When teaching the patient, spouse, and children about this disorder, the nurse will provide information about the

A) use of levodopa-carbidopa (Sinemet) to help reduce HD symptoms.
B) need to take prophylactic antibiotics to decrease the risk for pneumonia.
C) lifestyle changes such as increased exercise that delay disease progression.
D) availability of genetic testing to determine the HD risk for the patient's children.