MIDTERMS

Question 1

is an electronic instrument used for detecting and measuring ionizing radiation

widely used in applications such as radiation dosimetry, radiological protection, experimental physics and the nuclear industry

Answer 1

geiger muller counter

Question 2

are handheld, very sensitive, inexpensive survey instruments used primarily to detect small amounts of radioactive contamination

Answer 2

geiger muller counter

Question 3

are used for the determination of the high energy part of the x-ray spectrum

detect radiation by measuring the amount of light produced in special crystalline materials by the ionizing radiation

Answer 3

scintillation detectors

Question 4

most common material used in scintillation detectors

Answer 4

sodium iodine (Nal)

Question 5

are radiation detectors which employs a semiconductor material as the detecting medium

these detectors produce pulse of electric current by means of pairs of charge carriers, electrons and holes, generated when the detectors come in contact with ionizing radiation

Answer 5

solid state detectors

Question 6

also called Semiconductor Radiation Detector, radiation detector in which a semiconductor material such as a silicon or germanium crystal constitutes the detecting medium

Answer 6

solid state detectors

Question 7

the process of neutron detection begins when neutrons, interacting with various nuclei, initiate the release of one or more charged particles

Answer 7

neutron detectors

Question 8

indicated for PET imaging of patients with suspected prostate cancer recurrence based upon elevated blood prostate specific antigen (PSA) levels following initial therapy and non-informative
bone scintigraphy, computerized tomography (CT) or magnetic resonance imaging (MRI) to help identify potential sites of prostate cancer recurrence for subsequent histologic confirmation

Answer 8

carbon 11 choline

Question 9

detection of gastric urease as an aid in the diagnosis of H.pylori infection in the stomach

Answer 9

carbon 14 urea

Question 10

indicated for PET imaging of patients with suspected prostate cancer recurrence based upon elevated blood prostate specific antigen (PSA)

Answer 10

fluorine 18 florbetapir

Question 11

PET bone imaging agent to delineate areas of altered osteogenesis

Answer 11

fluorine 18 sodium fluoride

Question 12

useful to demonstrate hodgkin’s disease, lymphoma, bronchogenic carcinoma and aid in detecting some acute inflammatory lesions

Answer 12

gallium 67 gallium citrate

Question 13

a diagnostic imaging agent in newly-diagnosed patients with biopsy-proven prostate cancer, thought to be clinically-localized after standard diagnostic evaluation, who are at high-risk for pelvic lymph node metastases

Answer 13

indium 111 capromab pendetide

Question 14

for labelling monoclonal antibodies and peptides

Answer 14

indium 111 chloride

Question 15

indicated for use in the detection of primary or metastatic pheochromocytoma or neuroblastoma as an adjunct to other diagnostic tests

Answer 15

iodine 123 iobenguane

Question 16

indicated for use in the evaluation of thyroid, function and morphology

Answer 16

iodine 123 sodium iodide

Question 17

indicated for use in the determination of total blood plasma volume

Answer 17

iodine 123 human serum albumin

Question 18

used to locate a source of radioactivity and to assess the amount of radioactivity present or the exposure rate from the source

Answer 18

survey meter

Question 19

detectors used in most x-ray machine phototimers

Answer 19

ionization chambers

Question 20

mostly used for inexpensive survey meter for radiation protection purpose

widely used in monitoring because it is very rugged

Answer 20

GM counter

Question 21

used to detect and convert light photons emitted from the crystal into an electronic signal that amplifies the original photon

Answer 21

photomultiplier tube

Question 22

is an imaging test that can help reveal the metabolic or biochemical function of your tissues and organs

Answer 22

PET

Question 23

it is a functional imaging technique that uses radioactive substances known as radiotracers to visualize and measure changes in metabolic processes, and in other physiological activities including blood flow, chemical composition and absorption

Answer 23

PET

Question 24

a scan can find abnormal activity and it can be more sensitive than other imaging tests

Answer 24

PET

Question 25

nuclear medicine tomographic imaging technique using gamma rays

Answer 25

SPECT

Question 26

it is very similar to conventional nucmed planar imaging using a gamma camera, but is able to provide true 3D information

Answer 26

SPECT

Question 27

for biliary tract blockage and radiopharmaceutical drug is needed

Answer 27

technetium 99

Question 28

for abscess and infection what radiotracer is needed?

Answer 28

gallium citrate 67

Question 29

for bone diseases what radiotracer is highly recommended?

Answer 29

sodium fluoride 18

Question 30

for a bone marrow diseases what is suggested radiopharmaceutical drug?

Answer 30

tc 99m sulfur colloid

Question 31

for kidney diseases

Answer 31

tc 99m gluceptate

Question 32

for heart muscle damage (infarct)

Answer 32

tc 99m pyrophosphate