Get Virtual Care
For Businesses
About Us
A member asked:
How soon after a pet scan can i have sex?
4 doctors weighed in across 2 answers
Short half-life: F18-FDG is excreted in your urine and it decays pretty rapidly with a half-life of 110 minutes. I don't know of studies that investigated its concentration in semen/vaginal fluids but my guess probably low. In any case, if you want to be extremely cautious with your partner you could wait 10 half-lives, which is roughly 20 hours post-injection at which time there is almost no activity left in you
Answered 10/15/2019
5.6k views
I'd wait a day: Pet scans use radioactive fluorine. It has a halflife of about 2 hours and is effectively "dead"...Non-radioactive in 10 half-lives... Or 20 hours.
Answered 1/25/2021
5.3k views
Related Questions
A member asked:
My cat killed mouse in garage could I get hantavirus from petting cat or mouse in the garage?
6 doctors weighed in across 2 answers
A member asked:
I am allergic to cats after petting it i applied carmax to my lips. Maybe thats why, what to do?
A doctor has provided 1 answer
A member asked:
We have stray kittens outside found them eating a squirrel if the squirrel had rabies can the kittens pass it to us by petting them?
A doctor has provided 1 answer
People also searched for:
Can you get pregnant from heavy petting and any other activity besides sex of any kind?
When is it safe to have petting and sex (with condom) after a medical abortion?
How quick would you show if your allergic to a cat after petting it
Children at San Diego county fair fell ill with E.coli after petting animals there. How dangerous are petting zoos? How to tell if a petting zoo is safe?
Can I get rabies from petting a stray cat???
Didn't find what you're looking for?
90,000 U.S. doctors in 147 specialties are here to answer your questions or offer you advice, prescriptions, and more.
Ask your questionMore of what we treat
Download HealthTap
Video visit and message your doctor
