NUC MED

Question 1

Pharmaceuticals used in RNI

Answer 1

HMDP - Bone

MAA - Lung

MAG 3 - Renal

Sestambi - Cardiac

Question 2

How can radio pharmaceuticals be administered

Answer 2

Intravenously

Orally

Inhaled

Question 3

Clinical indications for RNI

Answer 3

Detection and follow up of Metastasis

Unexplained joint and general pain

Significance of lesions

Paget’s disease

Trauma

Question 4

What is a blood pool image

Answer 4

Image taken within 5 minutes of injection to see initial uptake

Question 5

What does a 3phase bone scan refer to?

Answer 5

Blood flow

Blood pool

Delayed images

Question 6

What is a blood flow image

Answer 6

Imaging at time of injection for 1 minute

Question 7

When is a 3 phase scan done

Answer 7

Entire skeleton scan

Evaluation of fracture or infection

Question 8

What gas is given during a ventilation/perfusion imaging

Answer 8

Krypton Gas (13 second half life)

Question 9

How can infection be shown in RNI

Answer 9

Blood is taken from the patient

Blood is spun in a centrifuge to segregate the WBC

WBC are labelled with Tc99m and injected back into the patient

Abnormal uptake of tracer indicates infection due to accumulation of WBC