Chapter Review
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
|
|
||||
|---|---|---|---|---|---|
| Determining the scale of contrast is one role of kVp. T or F | show 🗑
|
||||
| show | True
🗑
|
||||
| Film/screen combination has no effect on contrast. Tor F | show 🗑
|
||||
| show | increase
🗑
|
||||
| The longer the OID, the _______ the loss of sharpness | show 🗑
|
||||
| The ________ the screen, the greater the sharpness. | show 🗑
|
||||
| show | very small focal spot, increase SID, decrease OID
🗑
|
||||
| show | low energy photons
🗑
|
||||
| What term defines the "range of acceptable SID's that can be used with a focus grid"? | show 🗑
|
||||
| What effect does increasing filtration have on radiographic contrast | show 🗑
|
||||
| In what year were x-rays discovered? | show 🗑
|
||||
| In what year were some of the biologically damaging effects of x-rays discovered? | show 🗑
|
||||
| show |
🗑
|
||||
| X-rays were discovered when they caused a barium platinocyanide–coated plate to _________. | show 🗑
|
||||
| show |
🗑
|
||||
| X-rays have a dual nature, which means that they behave like both ________________. | show 🗑
|
||||
| show |
🗑
|
||||
| show |
🗑
|
||||
| show |
🗑
|
||||
| show |
🗑
|
||||
| Which x-ray tube component serves as a source of electrons for x-ray production? | show 🗑
|
||||
| Electrons interact with the ______ to produce x-rays and heat. | show 🗑
|
||||
| show |
🗑
|
||||
| show |
🗑
|
||||
| Which primary exposure factor influences both the quantity and the quality of x-ray photons? | show 🗑
|
||||
| show |
🗑
|
||||
| show |
🗑
|
||||
| The intensity of the x-ray beam is greater on the ______. | show 🗑
|
||||
| According to the line focus principle, as the target angle decreases, the ________. | show 🗑
|
||||
| show |
🗑
|
||||
| show |
🗑
|
||||
| Increasing the kVp results in ______. | show 🗑
|
||||
| show |
🗑
|
||||
| show |
🗑
|
||||
| Which processes occur during the x-ray beam interaction with tissue? | show 🗑
|
||||
| show |
🗑
|
||||
| show |
🗑
|
||||
| show |
🗑
|
||||
| show |
🗑
|
||||
| What interaction creates unwanted exposure to the image, known as fog? | show 🗑
|
||||
| What 2 factors would affect beam attenuation? | show 🗑
|
||||
| show |
🗑
|
||||
| show |
🗑
|
||||
| The process of creating a radiographic image by differential absorption varies for film-screen and digital imaging. | show 🗑
|
||||
| An attribute (or attributes) of a radiographic image that affects the visibility of sharpness is _________. | show 🗑
|
||||
| show |
🗑
|
||||
| What is defined as the range of exposure intensities an image receptor can accurately detect? | show 🗑
|
||||
| show |
🗑
|
||||
| show |
🗑
|
||||
| A radiographic film image has excessive density. What is best to do in order to correct the exposure error? | show 🗑
|
||||
| What exposure factor affects both the quality and the quantity of the x-ray beam? | show 🗑
|
||||
| What is not affected by kilovoltage? | show 🗑
|
||||
| How is the quality of the image affected when more than needed radiation exposure reaches the digital image receptor? | show 🗑
|
||||
| What would maintain radiation exposure to the image receptor when the kilovoltage is decreased by 15%? | show 🗑
|
||||
| show |
🗑
|
||||
| Which factor does not affect the radiation exposure to the image receptor? | show 🗑
|
||||
| What exposure factor change is recommended to maintain radiation exposure to the image receptor when increasing patient thickness by 5 cm? | show 🗑
|
||||
| Instilling a negative contrast agent in the gastrointestinal tract has what effect in the area of interest on the digital image? | show 🗑
|
||||
| show |
🗑
|
||||
| show |
🗑
|
||||
| show |
🗑
|
||||
| show |
🗑
|
||||
| The purpose of automatic collimation is to ensure that _______________. | show 🗑
|
||||
| show |
🗑
|
||||
| What increases as collimation increases? | show 🗑
|
||||
| show |
🗑
|
||||
| The purpose of a grid in radiography is to _______________. | show 🗑
|
||||
| Grid ratio is defined as the ratio of the _______________. | show 🗑
|
||||
| Compared with parallel grids, focused grids _______________. | show 🗑
|
||||
| show |
🗑
|
||||
| show |
🗑
|
||||
| Off-focus grid cutoff occurs by using an SID that is not ___________. | show 🗑
|
||||
| The type of motion most used for moving grids today is ________. | show 🗑
|
||||
| show |
🗑
|
||||
| show |
🗑
|
Review the information in the table. When you are ready to quiz yourself you can hide individual columns or the entire table. Then you can click on the empty cells to reveal the answer. Try to recall what will be displayed before clicking the empty cell.
To hide a column, click on the column name.
To hide the entire table, click on the "Hide All" button.
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
To hide a column, click on the column name.
To hide the entire table, click on the "Hide All" button.
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.
Normal Size Small Size show me how
Normal Size Small Size show me how
Created by:
lkdickson
Popular Radiology sets