WorksheetsTutorial (15 MCQs) - Screen Film Radiography Image Quality
Total questions: 15
Worksheet time: 1hrs 15mins
Congestive heart failure causes increased tissue density due to fluid accumulation in the lungs and around the heart. Which of the following exposure factor modification techniques need to be done?
Increase exposure factor
Decrease exposure factor
No exposure change
Which statement best defines film contrast?
Different densities due to tissue thickness variation
Different densities due to film emulsion response
Which pair correctly matches contrast type with its cause?
Subject contrast — tissue absorption differences
Film contrast — patient thickness differences
Film contrast — X-ray quality alone
Subject contrast — emulsion response variations
Which patient factor can alter tissue thickness in imaging?
Tissue type and pathologic process
Scanner brand and room lighting
Technologist experience level
Appointment time and patient age
Which filters are stated to impact radiographic contrast?
Inherent tube housing filters
Compensating filters added externally
Filtration in collimator light
Which action would most likely lower image contrast when using intensifying screens?
Switching from 400 speed to 200 speed
Increasing screen speed progressively
Maintaining 400 speed across exposures
Which of the following is NOT listed as a synonym for resolution?
Clarity
Contrast
Sharpness
Recorded detail
What patient-related aspect is listed as affecting image resolution?
Exposure time exclusively decides
Detector brand determines it
Only technician skill matters
Patient factor is included
Which factor can degrade resolution due to subject or equipment movement?
Motion during exposure
Smaller focal spot only
Higher SID alone
Which combination best represents operator-controlled geometry affecting resolution?
Modifying detector thickness
Altering pathology severity
Adjusting SID and OID
What does SID stand for in radiographic imaging?
Subject to image definition
Screen to input detector
Source to incident dose
Source to image distance
What does OID refer to in radiography?
Optical input diameter
Output intensity deviation
Operator imaging directive
Object to image distance
What is a common standard SID used during routine patient X-rays?
200 cm frequently
50 cm commonly
100 cm typically
When a structure is not parallel with the image receptor, which resolution effect can occur?
Improved detail due to alignment
No change if exposure factors are correct
Distortion leading to reduced resolution
Magnification without shape change
What is the typical effect of increasing focal spot size?
Decreases sharpness
Increases sharpness
No change in sharpness
