RAD 100 STUDY GUIDE 2026/2027 QUESTIONS AND
ANSWERS RATED A+
✔✔A double contrast study using both air and barium are often used in barium enema
studies. - ✔✔true
✔✔The contrast medium of choice for gastrointestinal studies is - ✔✔barium sulfate
✔✔Hysterosalpingography is a radiographic study of the [______] and [_____] tubes
using an iodinated based contrast media. - ✔✔uterus, fallopian
✔✔A radiographic study of the colon, which involves introducing a barium solution into
the colon, is called a - ✔✔barium enema
✔✔_____ _____ for some examinations includes cleansing enemas; these are
performed so that structures in the abdomen are not obstructed by gas and fecal
material. - ✔✔internal preparation
✔✔Positive contrast will appear ____________ (white/black) on a radiograph. -
✔✔white
✔✔Intravenous urography helps visualize stones in the [_____] system and evaluate
[_____] function. - ✔✔urinary , kidney
✔✔A Radiographic study of the knee or the shoulder joint is called an - ✔✔arthrogram
✔✔Air would be considered a _______________ (negative/positive) type of contrast
media. - ✔✔negative
✔✔Barium sulfate is [_______] and cannot be absorbed by the body. - ✔✔inert
✔✔Intravenous urography, which is also called intravenous pyelography, requires the
use of a(n)[__________] contrast agent. - ✔✔iodine-based
✔✔What does anteroposterior look like? - ✔✔
✔✔What does posteroanterior look like? - ✔✔
✔✔Collimation - ✔✔The restriction of the size and shape of the x-ray beam in order to
reduce patient exposure.
✔✔Air or gas - ✔✔Z# 7.6
, ✔✔Barium - ✔✔based contrast- Z# 56
✔✔Iodine - ✔✔based contrast (ionic & nonionic) Z#53
water soluble
✔✔When were X-rays discovered? - ✔✔November 8th, 1895 by Wilhelm Conrad
Roentgen
✔✔Erythema Dose - ✔✔amount of radiation required to turn the skin red
✔✔Absorption of energy - ✔✔Radiation absorbed dose (RAD)
✔✔Measure of exposure - ✔✔Roentgen (R)
✔✔Biologic effect - ✔✔radiation-equivalent-man (REM)
✔✔Unit of radioactivity - ✔✔Curie (Ci)
✔✔non-threshold - ✔✔no know level below which adverse biological effects may occur
✔✔ALARA - ✔✔As Low As Reasonably Achievable
✔✔Photoelectric effect - ✔✔incident photon totally absorbed
✔✔Photoelectric Effect - ✔✔Produces secondary radiation
✔✔Law of Bergonie and Tribondeau - ✔✔Cells are more sensitive when rapidly dividing
✔✔Why do we use grids - ✔✔Absorbs scattered radiation before it strikes image
receptor
✔✔Use of a grid _______ patient dose - ✔✔increases
✔✔Conversion of Energy - ✔✔99% heat
1% x-ray
✔✔Radiographic equipment - ✔✔Upright stand, X-ray table and Radiographic grid
✔✔Image production - ✔✔95% light
5% X-Ray
✔✔mA & exposure time (mAs) - ✔✔quantity
ANSWERS RATED A+
✔✔A double contrast study using both air and barium are often used in barium enema
studies. - ✔✔true
✔✔The contrast medium of choice for gastrointestinal studies is - ✔✔barium sulfate
✔✔Hysterosalpingography is a radiographic study of the [______] and [_____] tubes
using an iodinated based contrast media. - ✔✔uterus, fallopian
✔✔A radiographic study of the colon, which involves introducing a barium solution into
the colon, is called a - ✔✔barium enema
✔✔_____ _____ for some examinations includes cleansing enemas; these are
performed so that structures in the abdomen are not obstructed by gas and fecal
material. - ✔✔internal preparation
✔✔Positive contrast will appear ____________ (white/black) on a radiograph. -
✔✔white
✔✔Intravenous urography helps visualize stones in the [_____] system and evaluate
[_____] function. - ✔✔urinary , kidney
✔✔A Radiographic study of the knee or the shoulder joint is called an - ✔✔arthrogram
✔✔Air would be considered a _______________ (negative/positive) type of contrast
media. - ✔✔negative
✔✔Barium sulfate is [_______] and cannot be absorbed by the body. - ✔✔inert
✔✔Intravenous urography, which is also called intravenous pyelography, requires the
use of a(n)[__________] contrast agent. - ✔✔iodine-based
✔✔What does anteroposterior look like? - ✔✔
✔✔What does posteroanterior look like? - ✔✔
✔✔Collimation - ✔✔The restriction of the size and shape of the x-ray beam in order to
reduce patient exposure.
✔✔Air or gas - ✔✔Z# 7.6
, ✔✔Barium - ✔✔based contrast- Z# 56
✔✔Iodine - ✔✔based contrast (ionic & nonionic) Z#53
water soluble
✔✔When were X-rays discovered? - ✔✔November 8th, 1895 by Wilhelm Conrad
Roentgen
✔✔Erythema Dose - ✔✔amount of radiation required to turn the skin red
✔✔Absorption of energy - ✔✔Radiation absorbed dose (RAD)
✔✔Measure of exposure - ✔✔Roentgen (R)
✔✔Biologic effect - ✔✔radiation-equivalent-man (REM)
✔✔Unit of radioactivity - ✔✔Curie (Ci)
✔✔non-threshold - ✔✔no know level below which adverse biological effects may occur
✔✔ALARA - ✔✔As Low As Reasonably Achievable
✔✔Photoelectric effect - ✔✔incident photon totally absorbed
✔✔Photoelectric Effect - ✔✔Produces secondary radiation
✔✔Law of Bergonie and Tribondeau - ✔✔Cells are more sensitive when rapidly dividing
✔✔Why do we use grids - ✔✔Absorbs scattered radiation before it strikes image
receptor
✔✔Use of a grid _______ patient dose - ✔✔increases
✔✔Conversion of Energy - ✔✔99% heat
1% x-ray
✔✔Radiographic equipment - ✔✔Upright stand, X-ray table and Radiographic grid
✔✔Image production - ✔✔95% light
5% X-Ray
✔✔mA & exposure time (mAs) - ✔✔quantity
