Mike Lab Test 1 Flashcards
Primary method of waste management
Storage for decay
Source of radiation
Time
Shielding
Distance
Personal monitoring
OSL (body)
TLD (ring)
Pocket dosimeter
Publication concerned with protection from radiation
10CFR20
Publication concerned with transport of RAM
49CFR100
The maximum removable radiation from received package
0.003 uCi/ 300 cm2
6600 DPM
Transport index [T.I]
Expose rate mR/hr @1m from the surface of a package on Yellow II or Yellow III
Max T.I
10 mR/hr
Max surface reading
200 mR/hr
2 types of gas filled detector
- Ionization
2. GM
Ionization detector
Cutie pi, pocket dosimeter, dose calibration
➡️very accurate due to complete collection of ion pair
GM detector
Survey meter, pancake, steel-wall
➡️very sensitive due to gas amplification ➡️ production of secondary ion pairs
Accuracy
The closeness of a measurement to the TRUE magnitude of that which is measured
Precision
The ability to make repeated measurement which closely agree
All preparations for injection must be
Sterile and pyrogen free
Pyrogen
Anything which cause a febrile response
Sterile
The complete absence of viable organisms
A septic technique
Method that prevent or minimize the microbial contamination of sterile solution or devices
Sterility test
The inoculation of growth media, incubation and inspection for obvious microbial growth
Pyrogen test
_USP rabbit test: test for any type of pyrogen
_LAL test: only detect gram negative endotoxin type pyrogen (common)
70% isopropyl alcohol
USP approved injection site antiseptic
DO NOT inject air:
1) air is not sterile
2) may react adversely with vial contents
3) positive pressure may cause injection of radioactive content
Generator
A system continuing a long T1/2 parent radionuclide which decay to a shorter T1/2 daughter radionuclide which can be isolated
Source of 99Mo from
235 U fission product
Al +++
Aluminum ion cause
Flocculation of radio colloid
99m Tc O4 - is removed from the generator by
Ion exchange reaction
Radionuclidic purity
The portion of radioactivity in a sample due to the desired radionuclide
Radio chemical purity
The portion of radioactivity on a sample due to the desired chemical form
Radionuclidic impurity
99 Mo in 99m Tc04- eluate
Chemical impurity
Al +++ in an 99mTc04- eluate
Radiochemical impurity
99mTc-HR in 99mTc04- eluate
Low generator yield cause by
1) channeling
2) radio lytic impurity = peroxides and free radial
Dry column generator ➡️ associated the wet column generator
Aluminum test is positive if
Evaluate spot is more intense in color than the standard spot
