Beam types - Study guides, Class notes & Summaries

Low mAs with high kV - ANS What combination of kV and mAs is recommended to decrease patient exposure? Flat contact shields, shaped contact shields, shadow shields, and breast shields - ANS List at least three types of patient shields. Restriction of the useful beam - ANS What is the single most important way to reduce patient exposure? Collimators, cones, and aperture diaphragms - ANS List three types of beam restrictors. Inherent filtration - ANS The x-ray tube glass...

ASRT MAMMOGRAPHY MODULE QUESTIONS WITH CORRECT ANSWERS Using kVp settings of 20 to 40 creates a lower-energy x-ray beam that results in increased: 1. Scatter Radiation 2. Radiographic Contrast 3. Radiation Dose A. 1 and 2 B. 1 and 3 C. 2 and 3 D. 1, 2, and 3 - Correct Answer C. 2 and 3 All of the following are types of filter materials used in mammography, except: A) molybdenum. B) rhodium. C) silver. D) tungsten. - Correct Answer D. Tungsten Mammography x-ray tubes are oriented ...

What is another name for Thermolysis? - Correct Answer - Alternating current - High Frequency -Short Wave -Radio frequency Retin-A may be best used as a _________________________ agent to delay aging. - Correct Answer Preventative Where does herpes emerge from? - Correct Answer Nerve tissue below the skin What are the functions of the skin? - Correct Answer -Protection -Heat regulation -Excretion -Secretion -Absorption -Sensation -Synthesis of Vitamin D What is a progressive...

CPHON Exam 195 Questions with Verified Answers Classification of Methotrexate - CORRECT ANSWER antimetabolite (s-phase) Classification of mercaptopurine and thioguinine - CORRECT ANSWER antimetabolite(s-phase) Classification of fludarabine/nelarabine - CORRECT ANSWER anti-metabolite Classification of cytarabine/gemcitabine - CORRECT ANSWER antimetabolite Classification and sub-class of ironotecan/topotecan - CORRECT ANSWER Topoisomerase inhibitors (campotothecins) Classificatio...

What is an artifact? not true representation of our patients anatomy or a structure in the image that does not correlate directly with actual tissue Artifacts include missing reflectors structures not representative of tissue spatial misregistration of reflectors In other words artifacts include reflections that are not real, not seen on the image, incorrect size/shape, incorrect position and incorrect brightness Artifacts occur because an error occurs somewhere in t...

Incident Safety Officer Complete Set Exam Questions With 100% Correct Answers Ch 5. 1.What are three things that need to be acquired to front-load for the ISO function? 1. NFPA 1021: standard on fire officer professional qualifications 2. Additional knowledge and skills 3. Certain attitude Ch 5. 2.Discuss the concept of mastery and it's benefit to the ISO. Mastery: 90/90 rule - 90% objective 90% of the time. Ability to perform with a certain unconscious competence. ISO needs to addres...

Describe laser - Correct Answer ️️ -Monochromatic (single color), coherent (organized), collimated (tight, parallel beam) What 3 parts does a laser need in order to work properly? - Correct Answer ️️ -Energy source, active medium, & optical cavity What is a unit that measures the wavelength of light? - Correct Answer ️️ -Nanometer What light is outside of the visible spectrum? - Correct Answer ️️ -Ultraviolet Why do UV rays damage the skin? - Correct Answer ️️ -The rays...

3 major advantages of SEM over light microscope correct answers Resolution: the ability to distinguish fine detail, Magnification: can magnify objects thousands of times, and Depth of Field: much greater than a light microscope. 3-D image of surface samples. Uses an electron beam as its illumination source What length unit was mentioned frequently correct answers UM or micrometer Parts of an SEM correct answers Know it What lens is used? correct answers Objective, electromagnetic and co...

Attenuation: a. is radiation that emerges from the patient b. describes changes in the x-ray beam as it travels through the patient c. produces only scatter radiation d. occurs only at doses used in radiation therapy - Describes changes in the x-ray beam as it travels through the patient Which photon-tissue interaction makes radiography possible because of its creation of image contrast? a. Compton b. Coherent c. Photoelectric d. Pair production - Photoelectric Which photon-tis...

LMRT MOCK BOARD EXAM PREP QUESTIONS AND ANSWERS A+ Increasing diagnostic filtration from 2.5 mm to 3.5 mm will have what effect on x-ray beam intensity? A. Increase in x-ray beam intensity B. Decrease in x-ray beam intensity C. No change in x-ray beam intensity - ANS-B. Decrease in x-ray beam intensity What is the minimum requirement for the evaluation of holes and cracks of shielding accessories? A. Annually B. Bi-annually C. Semi-annually D. Monthly - ANS-A. Annually Which of the li...