MIDTERM PT. 4 Flashcards
RADIOACTIVE PACKAGES SHOULD BE DELIVERED DIRECTLY TO ______ TO AVOID UNNECESSARY EXPOSURE TO PXNS AND STAFFS
HOT LABORATORY
ONCE A RADIOACTIVE PACKAGE HAS BEEN RECEIVED, IT MUST BE MONITORED FOR CONTAMINATION WITHIN ___ HOURS FROM DELIVERY TIME
3
-look for signs of damage
-using GM counter in mR/HR UNIT
DURING INSPECTION
IS PERFORMED AT THE SURFACE OF THE PACKAGE AND AT 1 METER FROM THE PACKAGE
EXTERNAL SURVEY
SWABBING AROUND THE SURFACE WITH COTTON BALL AND MEASURE THE POSSIBLE ACTIVITY IN THE WELL COUNTER
WIPE TEST
SURFACE SURVEY:
EXPOSURE LIMITS= ___
< 200 mR/hr
ACTIVITY AT 1M:
EXPOSURE LIMITS= ___
< 10 mR/hr
WIPE TEST:
EXPOSURE LIMITS= ___
6600 dpm/ 300 cm^2
Intravenous: __
veins
intrathecal: ___
spinal canal
Intraarterial: ___
artery
the generator can be eluted or “milked” more than once per day after elution
Molybdenum/ Technicium 99m Generator
the 66 hours half-life of Mo99 allows generator to be used for __ weeks
2
means to wash out or extract
elute
Molybdenum/ Technicium 99m Generator:
50%= __
75%=__
100%=__
4 hours
8.5 hours
23 hours
the only desired radionuclide in the Mo99/Tc99m generator
Technicium 99m
most common radionuclide contaminant
Mo99
daughter element of TC99m
technicium 99
daughter element of TC99
ruthenium 99
BEFORE PREPARING OF RADIOPHARMACEUTICALS FOLLOWING STEPS MUST BE DONE TO ENSURE RADIATION SAFETY & POSSIBLE CONTAMINATION:
- WEAR PERSONNEL MONITORING DEVICES
- WEAR LABORATORY COAT AND DISPOSABLE CLEAN GLOVES
- USE SYRINGE AND VIAL SHIELDS (LEAD POT) AS NECESSARY
IS PLACED INSIDE A LEAD POT TO PREVENT UNNECESSARY RADIATION EXPOSURE DURING PREPARATION
PHARMACEUTICAL VIAL
IS ADDED TO THE NON-RADIOACTIVE PHARMACEUTICAL VIAL ENCLOSED IN A LEADPOT
Tc-99m
IS ADDED TO THE NON-RADIOACTIVE PHARMACEUTICAL VIAL ENCLOSED IN A LEADPOT
Tc-99m
A RADIOPHARMACEUTICAL:
REQUIRES HEATING OF VIAL FOR 10 MINS AND 10 MINS COOLING OF VIAL AFTER HEATING
Tc99m MIBI
A RADIOPHARMACEUTICAL:
REQUIRES GENTLE SWIRLING OF VIAL TO AVOID ACCUMULATION OF BUBBLES OR FOAM-LIKE TEXTURE DURING MIXTURE
Tc-99m MAA
SECURE THE SYRINGE WITH A ___
LEAD SYRINGE SHIELD
FOR ANATOMY
T1
