A 53-year-old female asked:
Is a peternity blood test taken 22 yrs ago as effective as a DNA test today?
1 doctor answer
Dr. Carin Van Gelder answered
24 years experience in Emergency Medicine
No.: Blood testing just looks at blood type, and while a child's blood type has to come from two specific blood types, many people have the same blood type (ie many options would still exist for the father). Today's dna testing uses cheek swabs and establishes a more exact dna pattern - different companies tout different success rates but most are >98%.
Answered on Mar 13, 2012
90,000 U.S. doctors in 147 specialties are here to answer your questions or offer you advice, prescriptions, and more. Get help now:
People also searched for:
Connect by text or video with a U.S. board-certified doctor now — wait time is less than 1 minute!