What term refers to the probability of having another child with a genetic disorder?

• A. Incidence risk
• B. Recurrence risk
• C. Prevalence risk
• D. Genetic risk

Answer: (B)

The term that refers to the probability of having another child with a genetic disorder is recurrence risk. This concept is particularly important in genetics and reproductive counseling, as it estimates the likelihood that a family member who has had one affected child will have another child affected by the same genetic condition. By calculating the recurrence risk, healthcare providers can give families valuable information about what to expect in future pregnancies, allowing them to make more informed decisions regarding family planning.

The other terms listed do have specific meanings in genetics and epidemiology but do not pertain directly to the probability of having another child with a genetic disorder. Incidence risk refers to the probability of developing a new case of a disorder within a specified time frame. Prevalence risk measures how widespread a condition is within a population at a given time. Genetic risk can refer to a broader assessment of an individual's likelihood of developing a genetic disorder based on various factors, but it is not specific to predicting the recurrence of a disorder in future pregnancies. Thus, recurrence risk is the most precise term in this context.