Question: how long does it take for a blood test for herpes to come back?
Answer: Results for a rapid viral culture may take 2 to 3 days, while results for a standard culture can take up to 14 days. Antigen detection test results are ready in a day. Polymerase chain reaction (PCR) test results are ready in 1 to 3 days. Results from an antibody blood test are ready in 2 days.