Phys 650 - Study guides, Class notes & Summaries

1. Grays in air are the measurement for x-ray _____. a. quantity b. exposure c. intensity d. all of the above ANS: D Grays are the measurement for x-ray quantity, exposure or intensity. DIF: Moderate REF: page 137 OBJ: Define radiation quantity and its relation to x-ray intensity. 2. The number of x-rays in the useful beam defines x-ray _____. a. kVp b. quality c. quantity d. mAs ANS: C The number of x-rays in the useful beam defines x-ray quantity. DIF: Moderate REF: page 137 O...

1. The four properties of photons are _____, _____, _____ and _____. a. size, shape, spin, mass b. frequency, mass, amplitude, wavelength c. frequency, wavelength, velocity, amplitude d. refraction, velocity, spin, amplitude ANS: C The properties of photons are frequency, wavelength, velocity, and amplitude. DIF: Moderate REF: page 45 OBJ: Identify the properties of photons. 2. The smallest quantity of any type of electromagnetic radiation is a(n) _____. a. photon b. electron c. neutr...

1. The term “atom” was first used by the _____. a. Ethiopians b. British c. Greeks d. Romans ANS: C The term “atom” was first used by the Greeks DIF: Moderate REF: page 27 OBJ: Relate the history of the term “atom.” 2. The first person to describe an element as being composed of identical atoms was _____. a. J. J. Thomson b. John Dalton c. Dmitri Mendeleev d. Niels Bohr ANS: B The first person to describe an element as being composed of identical atoms was John Dalton....

UNIT ONE Understanding Health Care Issues 1 1 Critical Thinking and the Nursing Process 2 2 Evidence-Based Practice 5 3 Issues in Nursing Practice 8 4 Cultural Influences on Nursing Care 12 5 Complementary and Alternative Modalities 16 UNIT TWO Understanding Health and Illness 19 6 Nursing Care of Patients With Fluid, Electrolyte, and Acid-Base Imbalances 20 7 Nursing Care of Patients Receiving Intravenous Therapy 23 8 Nursing Care of Patients With Infections 26 9 Nursing Care of P...

CWNA Study Question and Answers 100% correct An RF wave is weaker after traveling through some material in its path, what is the term used to describe what happened as the RF wave passed through the material? You must select 1 answer A. Reflection B. Refraction C. Scattering D. Absorption Correct Answer is:D Absorption occurs when an RF wave travels through a material that converts the RF wave energy to heat as it passes through. Some of the RF wave energy is lost and some of it passes t...

1. Bobby and Sissy got married 2.5 years ago. Since that time, they have lived in Bobby's home. Sissy sold her previous home three years ago and ex- cluded her entire gain ($80,000) at that time. Bob- by and Sissy decided to move to a bigger home this year. As a result, they sold Bobby's home for $500,000 (original cost $150,000). How much of the gain from the sale is taxable? 2. T/F Gambling winnings are included in gross in- come only to the extent that the winnings exceed gambling losses...

1. The most widely used support structure for the x-ray tube is the _____. a. C-arm b. floor-to-ceiling mount c. ceiling support system d. floor support system ANS: C The most widely used support structure for the x-ray tube is the ceiling support system. DIF: Easy REF: page 105 OBJ: Describe the general design of the support structure for the x-ray tube. 2. The external structure of the x-ray tube includes the support structure, the protective housing, and the _____. a. anode b. cat...

1. The radiation-and light-sensitive layer of radiographic film is the ________layer. A. base B. emulsion C. supercoat D. anticurl/antihalation 2. Spectral sensitivity refers to the color sensitivity of A. Radiographic film. B. Safelight filters. C. Intensifying screens. D. Safelight filters and intensifying screens. 3. According to the Gurney-Mott theory of latent image formation, electrons liberated by radiation or light exposure are attracted to the A. Bromide. B. Sensitivity s...

Questions From Chapters 7, 8 & 9 1. The radiation-and light-sensitive layer of radiographic film is the ________layer. A. base B. emulsion C. supercoat D. anticurl/antihalation 2. Spectral sensitivity refers to the color sensitivity of A. Radiographic film. B. Safelight filters. C. Intensifying screens. D. Safelight filters and intensifying screens. 3. According to the Gurney-Mott theory of latent image formation, electrons liberated by radiation or light exposure are attracted to ...

1. The projected shape of the unrestricted primary beam is A. square. B. rectangular. C. circular. D. elliptical. 2. A purpose of beam-restricting devices is to ____________ by changing the size and shape of the primary beam. A. Increase patient dose B. Decrease scatter radiation C. Increase density D. Decrease contrast 3. The most effective type of beam-restricting device is the A. Cone. B. Aperture diaphragm. C. Cylinder. D. Collimator. 4. Of the beam-restricting devices listed...