PET Rubidium Cardiac Stress Test at Swedish

Information and Preparation Instructions

Please arrive in the Radiology department for the admissions process. A nuclear medicine technologist will greet you for the appointment. A small intravenous (I.V.) line will be started by the technologist for the exam. Please wear loose, warm, comfortable clothing. You will be asked to remove everything from the waist up and will be placed in a hospital gown. You will then be moved into the scanning room where electrodes for the EKG machine will be placed on your chest and abdomen. Once set up is complete, two 10-minute images will be taken of the heart with dilation medicine given in between (dilation medicine simulates exercise). Prior to each set of images, a radioactive tracer will be injected through the I.V. The radiotracer will not cause any allergic reaction or discomfort. Note, once the test has started, you will be unable to move or get up from the table. 

Before Your PET Rubidium Cardiac Stress Test

  • Do not eat or drink anything 4 hours prior to exam
  • No caffeine 12 hours prior to the exam
  • No beta blockers 24 hours prior to the exam
  • Please notify the technologist of any allergies or severe asthma
  • Please use the restroom prior to the start of the exam
  • Let the technologist know if you have any claustrophobia issues (please feel free to take any medication that may assist you in tolerating the exam i.e. pain medication, anti-anxiety)
  • Please notify the technologist if you have had a CABG, stents, cardio-angiogram, valve replacement