Chapter 14 Quiz Flashcards
Which of the following should be avoided for 24hrs before PET perfusion imaging using adenosine?
caffeine
carbohydrates
smoking
tylenol
caffeine
Which of the following is true regarding Rb-82?
-has a lower positron energy then F-18, resulting in better image resolution
-has a physical half-life of 1hr
-is produced by cyclotron and shipped in unit doses to the imaging facility
-is taken up into myocytes by a sodium/potassium adenosine triphosphate transporter
is taken up into myocytes by a sodium/potassium adenosine triphosphate transporter
Which of the following patterns indicates hibernating myocardium?
-normal perfusion, normal metabolism
-normal perfusion, decreased metabolism
-decreased perfusion, normal metabolism
-decreased perfusion, decreased metabolism
decreased perfusion, normal metabolism
Which of the following is TRUE regarding the use of adenosine in a vasodilator cardiac stress procedure?
-Infusion occurs over 6mins
-radiotracer is injected at the end of the infusion
-side effects can persist for hours after the procedure
-the total amount infused is 0.14mg/kg
Infusion occurs over 6mins
Which of the following is TRUE regarding viability scanning with FDG?
-diabetic pts seldom need supplemental insulin during the procedure
-FDG is injected when the serum glucose level decreases to less than 150mg/dL
-Glucose loading should not be performed in the serum glucose level is greater than 200mg/dL
-the primary energy source for the heart is a fasting state is glucose
FDG is injected when the serum glucose level decreases to less than 150mg/dL
The gold standard for determining the degree of coronary artery disease is _____.
nuclear cardiac imaging
cardiac CTA
coronary angiography
echocardiography
coronary angiography
All of the following are used for cardiac perfusion imaging EXCEPT ________.
N-13 ammonia
Rb-82 Chloride
O-15 water
F-18 FDG
F-18 FDG
Which of the following tracers will provide the best resolution for PET cardiac images?
N-13
Rb-82
C-11
none of the above
N-13
Patients with a history of heart block who are undergoing a PET cardiac stress study should receive which of the following stress agents?
dipyridamole
regadenoson
adenosine
none of the above
adenosine
Which of the following stress agents is administered in a bolus injection?
dipyridamole
regadenoson
adenosine
none of the above
regadenoson
Which of the following radiotracers can be used to image cardiac involvement with sarcoidosis?
N-13 ammonia
Rb-82 Chloride
O-15 water
F-18 FDG
F-18 FDG
Which chamber of the heart normally has the greatest myocardial thickness?
right atrium
right ventricle
left atrium
left ventricle
left ventricle
