Petscan & instructions not doing strenuous activity and exercise for 24hrs before

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Hi, does anyone know why this is?

My Husband is a Farrier and is booked to work the day before (for approx 3 hours) and we don't know if that'd be classed as strenuous and also why it makes a difference to the scan?

  • The scan is very sensitive, it can make areas  glow which don’t have cancer if you don’t follow the rules and this will lead to false positives. They even tell you to not think about much as the infusion goes in. 

  • Ahh that makes sense now, he's going to cancel his work and has strict orders from me to sit and read his book for the day and not even walk the dogs as I can do that.