In a busy obstetrical practice, use of a family history questionnaire or checklist is usually the most practical means of assessment. Asking patients to complete the questionnaire prior to the clinic visit can ensure that patients have time to contact family members as needed to collect more accurate information. 

For more information on prenatal genetic testing - 

New Tools For Counseling On Prenatal Genetic Testing

Resources for collecting family history information (modified from UpToDate)

Tool for patients to create their own family tree (Available in English and Spanish)

Genetic Testing

In a busy obstetrical practice, use of a family history questionnaire or checklist is usually the most practical means of assessment.