first year proficiency test-dont need til finals

what projection best demonstrates free air or fluid in the chest

ap right lateral decubitus

what cr angle describes when the tube is angled towards the head

cephalad

what is used to improve detail and reduce motion in mammography

compression

the bony prominence on the radius where the biceps tendon inserts is called 

radial tuberosity 

which organ allows passage of both food and air

esophagus

what dosimeter contains lithium fluoride crystals and measures dose by heat

TLD thermoluminscent dosimeter

where should a radiation badge be worn during fluoroscopy when wearing a lead apron 

at wasit level under the apron 

what is the annual occupation dose limit for the whole body 

50 msv

what ppe is required for airborne isolation

gown, gloves and mask 

what type of distortion occurs when the part is angled but the cr is perpendicular 

foreshortening 

what technical factor change is needed for a small pneumothorax

no change in technical factors

Axial projection where the cr is angled towards the feed

caudad

main functions of the large intestine 

reabsorption of fluids and elimination of waste

projection showing medial ascending and lateral descending colon with air

ap oblique, lpo

light, spongy lung tissue

parenchyma

left side air pathology uses left lateral decubitus true or false

false- use right lateral decubitus

Cr location for pa chest

t7

position to show esophagus between the heart and thoracic vertebrae

RAO

medial profile feature on lateral humerus 

lesser tubercle

body habits with short broad lungs and transverse heart

hypersthenic

ir placement above humeral head

1 ½ inches

5 percent of peoples body habits

hypersthenic

rotation for ap oblique elbow

45 degrees

fracture with multiple fragments

comminuted

fracture with bone through the skin 

open

area shown on pa axial colon

rectosigmoid

peritoneal folds supporting abdominal organs

momentum and mesentery 

efd lens of the eye (occupational) 

150 msv

device to detect lost source and low radiation

gm detector

sensing material in TLD

lithium fluoride 

cataracts, fibrosis, reduced fertility are what types of effects

late deterministic effects

dosimeter used up to 3 months

TLD

what are are used regarding fluoroscopy machines and safety 

a dead man switched is used, last image holds reduces dose, an alarm sounds every 5 minutes of on time 

where should the second badge be worn during fluoroscopic exam for a pregnant technologist

at waist level under the apron 

what si unit of collective effective dose

person sievert

a mobile radiographic unit must have a cord long enough to permit the radiographer to stand at least ___ from the patient, tube and useful beam 

2 meters 

the total air karma over the exposed area of the patient is called

DAP

what Wr used in calculative sievert takes into account what?

LET

Coherent scattering is also know as 

Classical scatter

what produces scatter as a result of vibration of an orbital electron 

Compton effect

what is the largest source of radiation exposure to the radiographer

scatter radiation from the patient

what may be used to measure in air exposure in fluoroscopic rooms

hand hel ionization chamber or cutie pie detector

protective lead apron used for fluoroscopy must be at least ___mm lead or lead equivalent 

0.5 mm 

what does the SI radiation unit coulomb per kilogram measure

radiation exposure in air only

what is the annual effective limit for radiologic technologists

50 mvs

who was the first American radiation worker to die from radiation included cancer in October of 1904

clarence madison dally

what is a purulent 

something containing pus 

what is true about a sterile field

if you notice the sterile package is open or wet it should be thrown out, anything below the level of the table or underside is considered unsterile, two sterile people should pass each other back to back 

what is asystole

cardiac arrest

which procedure dose not need to be done under sterile conditions

ng tube placement

used bandages and dressings must be placed

into red plastic biohazard bags and sealed

which transfer technique would not require two people

stand by assist

an iatrogenic infection is one caused by

physiscian intervention 

Lyme disease is a condition caused by bacteria carried by deer ticks. the tick bite may cause fever, fatigue and other associated symptoms. this is an example of transmission of an infection by

a vector 

the passing of a tube into the trachea to administer oxygen as an aid to respiration is called

intubation

what is neurogenic shock

caused by trauma to the spinal cord

what is the atomic number of barium

56

radiographers should take care to use proper body mechanics when lifting patients to avoid injury to their

lumbosacral spine

the most effective method used to prevent the spread of infection is

handwashing

during the production of the xray beam what percentage is given off as xray photons

1 percent 

what happens to image contrast is I switch from a 5:1 grid to an 8:1 grid 

image contrast increases 

Ma is also known as

tube current

what processes occurs when the xray beam enters the body

absorption, photon transmission, scattering

if the patient has emphysema what should be done to compensate for the pathology

decrease kvp

what statements are true regarding phototimers

the uses photomultiplier tubes or photodiodes to convert xrays into and electrical signal, the electrical charge is proportionate to the radiation that the paddles are exposed to, the detectors are coated with a fluorescent material

what is the generator factor of a 3 phase generator

1.35

what percentage of kinetic energy is converted to heat when the moving electrons strike the anode target

99 percent

what unit is used to measure frequency 

hertz

increasing collimation will do whati

increase image contrast 

what is true regarding increasing Sid

you decrease magnification

xray travels in bundles of energy called

photons

a higher kvp setting will