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Nuc Med final
Terms in this set (89)
Which of the following is NOT a way that we administer a radioactive tracer?
Which of the following is NOT part of ALARA concept?
A technologist typically measures a dose in this prior to administering it to the patient.
The time it takes to eliminate radioactive material from the body by combination of the biological elimination and radioactive half life:
Effective half life
A nuclear medicine camera is called:
In a nuclear medicine department this is where radiopharmaceutical are received and stored:
These are nuclides that have the same total number of neutrons and protons but are different elements:
The instability of this is the basis for radioactive decay:
During this type of picture the camera and the patient stays in one position until the image is done being acquired:
A technologist would use this instrument to assay the department at the end of the day to look for contamination:
Isotopes are nuclides of the same element with the same number of protons but a different number of neutrons.
Occupational radiation exposure is measured in rems.
Radiopharmacies are where radiopharmaceuticals are compounded and are located within every hospital.
When disposing radioactive materials, once you have waited 10 times the half life you can dispose of the waste as regular trash.
Nuclear chemistry deals with changes in the __________.
Too many __________ or _____________ may cause a nucleus to become ___________ and break apart.
protons, neutrons, unstable
The nucleus contains ___________ and ___________.
Dose rate is measured in __________.
Expose is measured in _________.
Dose equivalent is measured in __________.
Absorbed Dose is measured in __________.
Measurements of radioactivity is measured in ____________.
____________ is the measurement of how fast a radiation dose is being received.
__________ is the amount of radiation absorbed by any object.
__________ is the measurement of the relative harm or risk caused by a given dose of radiation when compared to air.
___________ is the strength of a radiation field at some point in air.
__________ is the amount of ionizing radiation released by a material.
Radiation levels outside a room such that an individual could receive .30 rem in 1 hour. According to the NRC the technologist should:
Post a high radiation area sign
Is it determined that a healthcare workers could receive 300 millirem per year. According to NRC regulations, this worker:
Does not need to be issued a personnel dosimeter
A right handed nuclear medicine tech puts on a ring badge before work. The ring should probably be worn:
On the right hand with the TLD chip facing the palm of the hand.
A tech declares her pregnancy. Her exposure should?
Not exceed 500 mrem to the fetus during gestation.
A packing with a transportation index of 3 would indicate to the tech that the package:
Will read 3 mrem on the surface
A package arrives with a surface reading of 10 mrem/hr; the label should be;
The federal agency that is responsible for the regulation of the uses of by product material is the ?
Which of the following is not a common type of personnel monitoring;
Geiger Mueller Meter
This type of personal uses a thin slice of aluminum oxide that is inserted into a light proof envelope containing different filters to monitor radiation exposure for up to 3 months:
Optically stimulated luminescence Dosimeter
What is radiation safety programs responsible for?
All are correct
Which of the following radioisotopes is not produced by a generator?
What does the image below represent?
In every hospital radiopharmaceutical are received and stored in the __________.
Radiopharmaceutical are compounded and dispensed in a _________.
All _________ used in nuclear medicine are produced by artificial means.
External radiation and surface contamination must be verified within _________ hours of delivery.
Nuclear Regulatory Commission
Food and Drug Administration
Radiation safety officer
Department of transportation
Which survey meter is appropriate to use when measuring high levels of radiation?
According to the Nuclear Regulatory Commission (NRC), survey meters must be calibrated?
The 360 degree orbit is most often used in SPECT studies EXCEPT for scans of ?
This uses thallium activated sodium iodide crystal to detect very low activities, such as wipe test?
Temperature changes can effect which of the following parts of the gamma camera?
During this type of image acquisition the camera moves over the patient creating one long image?
Which of the following collimators would have the longest bore length?
You are setting up the camera for a dynamic image for a gallbladder study. The camera parameters are for 60 seconds per frame for 45 frames. The patient asks how long the images will take, what would you tell them?
The process of converting 2D projections into a 3D image is called?
When a positron interacts with the electron and their masses are the same it creates?
The annihilation process
What type of image acquisition is displayed below?
static (image of rib cage with dark spots)
Which of the following is not a part of the gamma camera?
Which of the following would not be a shape of a photomultiplier tube?
This is a sensitive instrument with a long response time which makes it best for measuring high doses. It also gives an accurate exposure rate.
Portable Ionization Chamber
__________ imaging records how the radiopharmaceutical administered to the patient changes over time.
In a gamma camera this is used to select energies that will be used for the image ________.
Pulse Height Analyzer
PET is different from traditional nuclear medicine because it uses short-lived ___________ forms of common organic elements tagged to tracers to image.
What are the QC procedures performed on a dose calibrator for Constancy?
What are the QC procedures performed on a dose calibrator for Geometry?
What are the QC procedures performed on a dose calibrator for Accuracy?
What are the QC procedures performed on a dose calibrator for Linearity?
Why is Constancy done?
Determines the reproducibility of measurements of a source of known activity
Why is Geometry done?
The effect of sample volume and configuration on the measurement of sample's activity
Why is Linearity done?
How accurately it measures activities over a wide range from millicuries and microcuries
Why is Accuracy done?
Tests the ability to provide true measurement of activity of different gamma energies. Use 2 different long lived energies.
Visualization of the kidneys on a 99mTc-MDP scan is considered:
abnormal, because 99mTc-MDP is excreted via the bowel
In the evaluation of primary bone neoplasms, bone scans:
are used to detect disease elsewhere
A patient is entering the osseous phase of a routine three-phase bone scan. The
begin to take 2- to 3-hour delayed images
The main determinant of the rate of liquid gastric emptying is:
The most frequent indication of the V/Q scan is:
For lung imaging, pulmonary blood flow in a person sitting in an upright position will be:
More abundant in the base of the lungs
The radionuclide image (V/Q) of the lung, provides a map of lung:
Perfusion and Ventilation
Which of the following is not an indication for a gastric emptying study:
All of the following are major roles of the stomach EXCEPT:
Secretes bile which aids in digestion
Patient preparation for gastric emptying studies is very important. Which of the following is part of the patient prep?
Patient should be NPO 4-12 hours prior to the exam
Why does a solid meal for a gastric emptying study consist of eggs, toast, jelly, and water?
To replicate a typical meal with protein, carbs, liquid, and sugar
. During this type of image acquisition the camera moves over the patient creating one
Interpretation of the chest radiograph, ventilation scan, and perfusion images for a typical finding of pulmonary embolism would most likely be found in:
Segmental perfusion defects, normal ventilation, normal chest x-ray
If the results of a gastric emptying show 4% of the ingested meal left at 4 hours, the
impression of the study would be abnormal.
The organ receiving the greatest radiation dose during a bone scan would be
The best type of lung imaging to visualize COPD would be
A liquid gastric emptying study would have a ______________ emptying rate compared to a solid gastric emptying study.
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