ARRT FINAL EXAM
COMPLETE ANSWERS 100% CORRECT (LATEST 2024 / 2025 )
• Which of the following is NOT a test performed as part of a quality-control (QC) program to check the radiographic equipment?
- reproducibility
- number of repeat images due to technologist collimation errors
- light field to radiation field alignment
D. central ray alignment: B
• A radiograph of an AP mortise projection of the ankle reveals that the lateral malleolus is slightly superimposed over the talus and the lateral joint space is not open. What is most likely cause for this radiographic outcome?
- Excessive plantar flexion of the foot and ankle
- Excessive dorsiflexion of the foot and ankle
- Insufficient medial rotation of the foot and ankle
d. Excessive medial rotation of the foot and ankle: C
• Contrast resolution of a CR/DR image is determined by the of the system.
- matrix size
- bit depth
- sampling frequency
d. dynamic range: B
• A radiographic image of the LPO projection of the lumber spine reveals that the downside pedicle is projected too far posteriorly on to the vertebral body. What specific positioning error is present on this radiographic image?
- excessive rotation of the spine
- tilt of the spine
- incorrect CR placement
d. insufficient rotation of the spine: A
• A secondary barrier is designed to absorb radiation.
- leakage 2. scattered 3. primary
- 1 only
- 2 only
- 3 only
d. Both 1 and 2.: D
• A technologist can reduce his or her exposure during fluoroscopy by stepping: 1. back from the patient. 2. behind the radiologist. 3. close to the patient's head. 1 / 3
- 1 & 3 only
- 1 only
- 2 & 3 only
d. 1 & 2 only: D
• A(n) effect increases with incidence but not severity as the dose increases.
- stochastic
- localized
- early
d. deterministic (tissue reaction): A
• Air or gas that escapes into the pleural cavity results in a condition known as:
- air bronchogram
- pneumothorax
- hemidiaphragm
d. hemothorax: B
• Which of the following is not appropriate for a technologist to do?
- compare the imaging order to the patient's history
- identify the patient using name and birth date
- crop off anatomy on the processed image
d. use a sandbag as an immobilization device while positioning a patient: C
• Which of the following veins is commonly used for venipuncture?
- cephalic vein
- internal jugular vein
- dorsal vein
d. popliteal vein: A
• Which of the following is an example of a positive contrast medium?
- air
- soda water
- barium sulfate
d. gas-producing crystals: C
• Which of the following is NOT a type of nonverbal communication?
- smiling at the patient
- asking the patient for a medical history c.
having a clean x-ray room d.
having a puzzled facial expression: B
- / 3
• Which of the following components are included in the CR reader?
- thin-film transistor
- DEL
- capacitor
d. beam-shaping optics: D
• Three of the four following statements best describe the proper use of standard precautions. Which statement is FALSE?
- Wash your hands or use hand sanitizer before and after patient contact
- Use standard precautions when caring for all patients
- Use precautions only for patients from the emergency department
d. Never recap used needles: C
• All the hereditary information about an individual is contained in the cells.
- skin
- brain
- blood
d. germ: D
• Which of the following best demonstrates the coracoacromial arch?
- West Point method
- Y view method
- Fisk method
d. Neer method: D
• An increase in exposure factors is usually required in which of the follow- ing circumstances?
- edema 2. ascities 3. acromegaly
- 1 only
- 1 and 2 only
- 1 and 3 only
d. 1,2 and 3: D
• An x-ray image of an ankle was made at 40-SID, 200 mA, 50 ms, 70 kV, 0.6mm focal spot and 2 inches of OID. Which of the following modifications would result in the greatest increase in magnification?
- 1.2 mm focal spot
- 36-inch SID
- 44-inch SID
d. 4-inch OID: D
- / 3