Radt 1085 test - Study guides, Class notes & Summaries

RADT 1085 TESTS QUESTIONS WITH ALL CORRECT ANSWERS Which of the following mobile radiographic units does not need to be plugged into the wall while producing X-rays? - Answer-battery-powered mobile unit This dedicated unit is used to determine if a patient's bone mineral density or mass is normal or low - Answer-Bone Densitimetry A common site for mobile fluoroscopy is - Answer-operating room During linear tomography, the tube an image receptor - Answer-Move in opposite directions al...

RADT 1085 Test 1 Questions with Correct Answers How does an object become electrified? - Answer-Electrons are added to or subtracted from this object The five laws of electrostatics are: - Answer-1) Repulsion-attraction 2) Inverse square law 3) Distribution 4) Concentration 5) Movement Electrification can be caused by what three methods? - Answer-Friction, contact, induction Out of the 3 ways an object can become electrified, which is the most important? - Answer-Induction because...

RADT 1085 Unit 5 Test Questions and Answers All Correct Fluoroscopic Image Quality: Quantum Mottle - Answer-Blotchy, grainy appearance Caused by insufficient radiation Most common solution is to increase fluoro tube mA Advantages of FPIR over II-CCD: - Answer-• Less image distortion. • Constant image quality over entire image. • Improved contrast resolution. • Rectangular image area coupled to similar image monitor. CCD converts - Answer-light pattern to electrical sig...

RADT 1085 TEST QUESTIONS WITH REVISED ANSWERS ALL CORRECT In what year did CGR introduce the first dedicated mammography machine? _______ - Answer 1967 Which mammographic process was developed that utilized a dry process system and utilized an electrically charged imaging plate and the resulting image came out on heavy paper in shades of blue? ____________________ - Answer xerox Which company introduced the first dedicated screen/film system for mammography? - Answer Du point (usa) ...

RADT 1085 Unit 1 Test Questions and Answers All Correct When increased OID is unavoidable, SID should be - Answer-increased slightly to compensate. In Computed radiography - Resolving power determined by - Answer-PSP and scanning system frequency (sampling); the greater the frequency the greater the resolution In Direct radiography - Resolving power determined primarily by - Answer-the detector element size (DEL), but detector system can influence too - (Cesium Iodide/Amorphous Silico...

RADT 1085 Final Test with Correct Answers What are materials called that are strongly attracted to a magnet? - Answer-Ferromagnetic What are materials called that are NOT attracted to a magnet? - Answer-Non-magnetic What are materials called that are weakly attracted to a magnet? - Answer-Paramagnetic How are the north poles of two magnets going to affect each other? - Answer-They will repel Materials that are easily magnetized and demagnetized are said to have a high _____. ...

RADT 1085 Final Test Questions and Answers All Correct What are functions of the filament? 1) primary thermal conductor 2) target surface for high voltage electrons from the filament 3) conducts high voltage from the cathode back to x-ray circuit generator. - Answer-all of these What are the 3 parts of the anode assembly? - Answer-anode, stator, and rotor Why is a vacuum created in the x-ray tube? - Answer-To remove the air to permit electrons to flow from cathode to anode wit...

RADT 1085 Contrast Test Questions and Answers All Correct Which of the choices below does not increase contrast? A. Increasing the amount of irradiated tissue B. Decreasing filtration C. Decreasing kVp D. Increasing grid ratio - Answer-A. Increasing the amount of irradiated tissue The concept of contrast as it is displayed on a soft-copy monitor for digital images is described as A. Window level B. Window range C. Contrast width D. Dynamic range - Answer-D. Dynamic range A...