Low energy x rays - Study guides, Class notes & Summaries

Rheobase - the lowest point on a strength duration curve at an infinitely long pulse duration Chronaxie time - the pulse width at twice the rheobase value. It approximates the most efficient stimulation pulse duration Charge (formula) - Charge= I(current) x T(time) Furman's formula - Energy(microjoules)= I(current)xV(voltage)xT(pulse width) Ohms law formula - Voltage(electromotive force)= I(current/flow of electrons) x R(resistance to current flow in ohms) Functional Refractory P...

ARDMS (RVT) Ultrasound Vascular Registry Review Questions with 100% Correct answers Ultrasound Vascular Registry Review Questions with 100% Correct answers What is the first branch of the aortic arch? Innominate artery/ Brachiocephalic Name the three branches of the aortic arch? a. Innominate artery/ Brachiocephalic b. Lt CCA c. Lt Subclavian artery The radial artery runs on what side of the forearm? Lateral side The radial artery branches to form what part of the palmar arch? Supe...

Introduction to Radiologic and Imaging Sciences and Patient Care 7th Edition Adler Test Bank Chapter 01: Introduction to Imaging and Radiologic Sciences Adler: Introduction to Radiologic and Imaging Sciences and Patient Care, 7th Edition MULTIPLE CHOICE 1. The use of X-rays to create a medical image on patients is referred to as a. electrocardiography. b. radiography. c. sonography. d. magnetic resonance imaging. ANS: B Radiography is the making of records, known as radiographs...

Portage Learning CHEM 210 exams 1-8 and final exam Question 1 3 / 3 pts True or False: According to the Module, a compound with a molecular mass of 1,000 g/mol is considered a macromolecule. True Correct! False Question 2 3 / 3 pts True or False: Biomolecules can have only two functional groups. True Correct! False Question 3 3 / 3 pts True or False: The following functional group is an alcohol. True Correct! False Question 4 3 / 3 pts True or False: In ...

Test Bank For Radiologic Science for Technologists 12th Edition by Bushong | All Chapters 1-40| Latest Guide A+ [Updated 2024]. Chapter 01: Essential Concepts of Radiologic Science Bushong: Radiologic Science for Technologists, 12th Edition MULTIPLE CHOICE 1. Matter is measured in . a. kilograms b. joules c. electron volts d. rems ANS: A Matter is measured in kilograms. 2. Atoms and molecules are the fundamental building blocks of . a. energy b. radiation c. matter d. gravity ANS...

ARRT Test Prep EXAM 2023 with all the correct answers(Actual test 100% verified) Main property of x-radiation that makes it potentially hazardous is its ability to? - CORRECT ANSWER Ionize Describe the damage potential of ionization? - CORRECT ANSWER Chain reaction in the human body that may eventually cause biologic damage. X-rays are from the Electric Magnetic Spectrum or radiation energy and is considered harmful in high energy ranges. What is the most likely potential hazard wor...

RADT 1200 Final Exam Questions and Answers All Correct What is the end result of photointegration? - Answer-one nuclear fragment What is the law od Bergonie & Tribondeau? - Answer-states that cells are most radiosensitive when they are: Stem Young High metabolic activity High proliferation rate What are physical factors affecting radiosensitivity? - Answer-LET- Linear energy transfer RBE- Relative biologic effectiveness What is LET? - Answer-a measure of the rate at which ioniz...

X-rays: Typical diagnostic wavelength and photon energy range. - Answer-100ev-200 keV min. wavelength 6pm-12nm Structure and function of the x-ray tube. - Answer-A vacuum tube with an anode and a cathode. The cathode is heated and electrons are emitted, they are accelerated by a voltage difference in the tube. When the "brake" against the material of the anode, they release their high kinetic energy in the form of an x-ray. *x-ray tubes are of very low efficiency, most of the radiation i...

Mild burns, cell mutation and cancer are all hazards of what? - Answer-Ionising radiation from x-rays Can X-rays be seen, heard or felt? - Answer-No What is the safe level of use with x-rays? - Answer-There isn't a safe level What does every radiation exposure cause? - Answer-Tissue damage Long term, low level exposure to radiation. - Answer-Stochastic Tissue reactions are... - Answer-Non-cancer damaging effects Random development when exposed to any radiation dose: Heritable effects - m...

Test Bank Memmlers Structure and Function of the Human Body 12th Edition Cohen Chapter 01: Introduction to the Body MULTIPLE CHOICE 1. The word derived from two word parts that mean ―cutting apart‖ is a. physiology b. homeostasis c. anatomy d. dissection ANS: C DIF: Memorization REF: p. 3 OBJ: 1 TOP: Introduction 2. The study of how the body functions is called a. physiology b. homeostasis c. anatomy d. dissection ANS: A DIF: Memorization REF: p. 3 OBJ: 1 TOP: Introduction 3. The correct seq...