MUGA Flashcards
1
Q
RP
Dose
Admin
A
20 - 30 mCi Tc99m Tagged RBC IV
2
Q
Indications
A
Evaluate LVEF Pre/Post Chemo Pre/Post Transplant Drug Protocols CHF
3
Q
Contraindications
A
Abnormal R - R interval
Chest pain during exam
Cyclosporin
4
Q
Patient Prep
A
DC cyclosporin
NPO 4 - 6 hrs
DC caffeine 4 hrs
3 lead EKG with visible R - R
5
Q
Positioning
A
Supine with arms above head
6
Q
Target organ
Critical organ
Route of excretion
Localization
A
Target: Blood
Critical: Heart/ Spleen
Excretion: Bowel
Localization: Compartmentalization
7
Q
In Vitro protocol
A
98% tagging efficiency Draw 1 - 2cc anti coagulated blood (heparin, ACD) Add to reaction vial - Add syringes A, B Tag with 20 - 30 mCi Wait 20 minutes Re-inject and image
8
Q
In Vivo protocol
A
80 - 85% tagging efficiency Inject 2 - 3 mL PYP Wait 20 minutes Inject 20 - 30 mCi Tc Image
9
Q
Modified In Vivo protocol
A
95 - 100% tagging efficiency
Inject 2 - 3 mL PYP
Wait 20 minutes
Draw 5 cc blood into anti-coagulated vial
Mix with 20 - 30 mCi Tc for 5 - 10 minutes
Re-inject and image
10
Q
Computer Set Up
A
64 x 64 16 bins 10 - 15 minutes or 300 - 600 beats LAO 45 - Ventricular separation ANT Caudal tilt - Atrial ventricular separation
11
Q
Results
A
(ED-ES)/(ED-BKG)x100
12
Q
Processing
A
Pegasys - 3 view Ga Gated
JetStream - MUGA ID
Xeleris - Cardiac MUGA MG5
