Bontrager Radiographic Positioning Final Exam Test Bank Marking Scheme

Bontrager Radiographic Positioning Final Exam Test Bank Marking Scheme The first general rule in diagnostic radiology suggest that a minimum of ______ projections be taken _______ degrees from each other as possible are required for most radiographic procedures. - ANSWER- 2 projections; 90 degrees The direction or path of the central ray of the x-ray beam defines the following positioning term: - ANSWER- Projection A patient is erect with their back to the IR. The left side of the body is turned 45 degrees toward the IR. What is this position? - ANSWER- Left posterior oblique (LPO) The patient is erect with the right side of the body against the IR. The x-ray beam enters the left side of the body. Which specific position has been used? - ANSWER- Right lateral T/F The term caudal means toward the head - ANSWER- False, caudal means toward the feet A patient is recumbent facing the IR. The right side of the body is turned 15 degrees toward the IR. What is this position? - ANSWER- Right anterior oblique (RAO) What is the name of the position in which the body is turned 90 degrees from a true AP or PA projection? - ANSWER- Lateral position Lying on the back facing upward - ANSWER- Supine Top or anterior surface of the foot - ANSWER- Dorsum Back half of the patient - ANSWER- Posterior Lying down in any position - ANSWER- Recumbent To have a lateral decubitus position or projection on must have a ________ beam. - ANSWER- Horizontal beam The vertical plane that divides the body into equal right and left halves describes the: - ANSWER- Midsaggital plane An upright position with the arms abducted, plans forward, and head head forward describes the: - ANSWER- Anatomic position A longitudinal plane that divides the body into equal anterior and posterior parts is the: - ANSWER- Midcoronal plane Which term describes the sole of the foot? - ANSWER- Plantar T/F A lateromedial projection is where the lateral aspect of the anatomical part is closest to the IR - ANSWER- False A position in which the head is lower than the feet is: - ANSWER- Trendelenberg A patient is lying on her back facing the x-ray tube. The right side of their body is turned 20 degrees toward the IR. What is this radiographic position? - ANSWER- Right posterior oblique (RPO) How many separate bones are found in the adult human body? - ANSWER- 206 Which system of the human body is responsible for the elimination of solid waste? - ANSWER- Digestive A patient is lying on their left side facing the IR. The x-ray tube is directed horizontally with the CR entering the posterior aspect of the body. What is this radiographic position? - ANSWER- Left lateral decubitus The patient is erect with their left side directly against the IR. The CR enters the right side of the body. What is this radiographic position? - ANSWER- Left lateral T/F According to your text and lecture radiographic view is not a valid positioning term in the United States - ANSWER- True The radiographic term "projection" is defined as: - ANSWER- Path or direction of the CR T/F A persons body habits represents a specific type of projection - ANSWER- False, body type Movement of an arm or leg toward the midline - ANSWER- Adduction An inward stress movement of the foot - ANSWER- Inversion Near the source or the beginning - ANSWER- Proximal A CR angle directed towards the feet - ANSWER- Caudal Increasing the angle of a joint - ANSWER- Extension Movement of arm or leg away from the midline - ANSWER- Abduction Decreasing the angle between the foot and lower leg - ANSWER- Dorsiflexion Turn or bend hand and wrist toward radius - ANSWER- Radial deviation Rotation of hand with palm down - ANSWER- Pronation T/F Since 1895 the methods of acquiring and storing x-ray images have for the most part stayed the same - ANSWER- False ______________ involves placing a photostimulable phosphor (PSP) or imaging plate into a cassette, used like traditional film-screen. - ANSWER- Computer Radiography (CR) T/F Milliamperage (mA) controls the penetrating power of x-rays with all radiographic imaging systems - ANSWER- False, kVp controls penetrating power T/F Exposure Time controls the number of x-rays produced within the x-ray tube. - ANSWER- False _____________ is highly complex mathematical formula or code used in digital processing. - ANSWER- Algorithm A term used by some equipment manufactures to indicate exposure index is the: - ANSWER- "S" number or sensitivity number T/F A Scintillator is a device that helps measure flashes of light (radioactivity) form the ionization of phosphor - ANSWER- True T/F "Gray Scale" is used instead of "scale contrast" when referring to digital images - ANSWER- True The term used to define a random disturbance that obscures or reduces clarity and translates into grainy or mottled appearance of the digital image is known as: - ANSWER- Noise