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| Who is credited with discovering x-rays? In what year? | Wilhelm Conrad Roentgen, 1895 |
| What was the 1st xray tube called? | Crooke's Tube |
| What was the substance that glowed that eventually lead to the discovery of xrays? | barium platinocyanide |
| 1.Who introduced a moving grid mechanisms and in what year? 2.Who was the first to produce a single exposure, AP full spine radiograph and in what year? | 1.Potter & Bucky in 1921. 2. Sausser, a chiropractor in 1935 |
| T/F The plain film radiograph still forms the foundation for a large portion for the diagnostic investigations in clinical practice? | true |
| ***What is the Cardinal rule in radiology? | An area in question must be shown in AT LEAST two views taken at right angles(90 degrees) to each other. |
| What type of radiographic positions the patient where: 1.the posterior surface is closest to the film? 2.the anterior surface is closest to the film? | 1.Anterioposterior (AP) 2.Posterioranterior (PA) |
| T/F radiographic terminology indicates the side of the patient CLOSEST to the film? | true (examples: RL = right lateral, the right shoulder is touching the film; LPO = left posterior side is closest to film; RAO = right anterior is closest to film) |
| List the densities from most film density (least tissue dense)? | 1.Air/Gas 2.Fat 3.Water/Soft Tissue 4.Bone 5.Metal |
| What type of anatomy is described as Radiolucent? Radiopaque? | Radiolucent = air/gas; Radiopaque = metal |
| What releationship does tissue density and film density have? | they are inversely proportional |
| ***Name the 7 items of information required on each radiography? | 1.Clinic Name or Doc's name 2.Name and location at which film was taken 3.Patient's name 4.Patient's date of birth or age 5.gender 6.date of film 7.ID # (not required in all states) |
| What is a preferred form of radiographic identification which is a plexiglass bubbled center with a drop of mercury or small metallic balls in the center? | Mitchell Markers |
| T/F R and L Mitchell Markers indicate the side of patient's anatomy closest to film? | true (on extermities, the marker indicates the extremity being examined) |
| If the metallic ball in a Mitchell Marker is seen in the middle, is the person laying down(recumbent) or standing up? | recumbent (laying down)... If the metallic balls are on the bottom the patient is upright! |
