2026/2027
VTNE 2026/2027 Exam Prep Workbook
and AAVSB Practice Test Review for
Veterinary Nursing Study, Assessment, and
Certification Readiness
Question 1
Which anatomical structure refers to the upper jaw in animals?
A. Mandibular
B. Occipital
C. Maxillary
D. Orbital
Correct Answer: C. Maxillary
Rationale: The maxillary bone forms the upper jaw and supports the upper teeth. The
mandibular bone forms the lower jaw, while the occipital region is part of the skull’s
rear, and the orbital region refers to the eye socket. Therefore, only the maxillary
correctly identifies the upper jaw structure.
Question 2
The crown of a tooth is best defined as:
A. The portion above the gum line covered by enamel
B. The root tip embedded in bone
C. The portion below the gum line
D. The periodontal ligament attachment area
Correct Answer: A. The portion above the gum line covered by enamel
Rationale: The crown is the visible part of the tooth covered by enamel and located
above the gingiva. The root lies below the gum line, while the periodontal ligament
anchors the tooth. Therefore, only option A correctly describes the crown.
Question 3
What is attrition in dentistry?
A. Plaque accumulation
B. Tooth wear from tooth-to-tooth contact
,2026/2027
C. Chemical erosion of enamel
D. Gum inflammation
Correct Answer: B. Tooth-to-tooth contact wear
Rationale: Attrition refers to mechanical wear caused by chewing and tooth contact.
Plaque is bacterial biofilm, erosion is chemical damage, and gingivitis is gum
inflammation. Thus, only B defines attrition.
Question 4
What is plaque?
A. Hardened calculus
B. A bacterial film on teeth
C. Enamel layer
D. Root tissue
Correct Answer: B. A bacterial film on teeth
Rationale: Plaque is a soft biofilm composed of bacteria, saliva, and food debris.
Calculus is hardened plaque, enamel is the tooth’s outer layer, and the root is below
the gum line. Therefore, B is correct.
Question 5
Which imaging modality uses no radiation?
A. X-ray
B. CT scan
C. Fluoroscopy
D. Ultrasound
Correct Answer: D. Ultrasound
Rationale: Ultrasound uses sound waves rather than ionizing radiation. X-ray, CT, and
fluoroscopy all rely on radiation exposure. Therefore, ultrasound is the only safe
radiation-free modality.
Question 6
What happens to crystals in an ultrasound transducer?
A. They dissolve
B. They break
,2026/2027
C. They vibrate
D. They heat up permanently
Correct Answer: C. They vibrate
Rationale: Electrical pulses cause piezoelectric crystals to vibrate, producing sound
waves. They do not dissolve or break under normal use. This vibration is essential for
image generation.
Question 7
Ultrasound images typically display how many shades of gray?
A. 50
B. 100
C. 256
D. 512
Correct Answer: C. 256
Rationale: Ultrasound imaging uses 256 grayscale shades to represent tissue density
differences. This allows fine detail interpretation. Fewer or higher values are not
standard in diagnostic ultrasound.
Question 8
What does the gain control adjust in ultrasound?
A. Depth
B. Brightness
C. Frequency
D. Pulse rate
Correct Answer: B. Brightness
Rationale: Gain controls the amplification of returning echoes, affecting image
brightness. It does not alter depth or frequency. Therefore, B is correct.
Question 9
TGC (Time Gain Compensation) allows:
A. Depth-specific gain adjustment
B. Radiation control
, 2026/2027
C. Image freezing
D. Probe sterilization
Correct Answer: A. Depth-specific gain adjustment
Rationale: TGC adjusts brightness at different tissue depths to improve image clarity.
It compensates for signal loss with depth. It does not relate to sterilization or radiation.
Question 10
Proper ultrasound probe disinfection involves:
A. Autoclaving
B. Alcohol immersion
C. Glutaraldehyde wiping
D. Dry storage only
Correct Answer: C. Glutaraldehyde wiping
Rationale: High-level disinfection with glutaraldehyde is recommended for probes.
Autoclaving may damage equipment, and alcohol alone is insufficient. Therefore, C is
correct.
Question 11
A comet tail artifact is caused by:
A. Fluid pockets
B. Metal or air interfaces
C. Soft tissue density
D. Bone absorption
Correct Answer: B. Metal or air interfaces
Rationale: Highly reflective structures like metal or gas create reverberation artifacts.
This produces a comet tail appearance. Soft tissues do not create this artifact.
Question 12
Hypoechoic structures appear as:
A. Bright white
B. Dark gray
C. Black only
D. Hypershiny
VTNE 2026/2027 Exam Prep Workbook
and AAVSB Practice Test Review for
Veterinary Nursing Study, Assessment, and
Certification Readiness
Question 1
Which anatomical structure refers to the upper jaw in animals?
A. Mandibular
B. Occipital
C. Maxillary
D. Orbital
Correct Answer: C. Maxillary
Rationale: The maxillary bone forms the upper jaw and supports the upper teeth. The
mandibular bone forms the lower jaw, while the occipital region is part of the skull’s
rear, and the orbital region refers to the eye socket. Therefore, only the maxillary
correctly identifies the upper jaw structure.
Question 2
The crown of a tooth is best defined as:
A. The portion above the gum line covered by enamel
B. The root tip embedded in bone
C. The portion below the gum line
D. The periodontal ligament attachment area
Correct Answer: A. The portion above the gum line covered by enamel
Rationale: The crown is the visible part of the tooth covered by enamel and located
above the gingiva. The root lies below the gum line, while the periodontal ligament
anchors the tooth. Therefore, only option A correctly describes the crown.
Question 3
What is attrition in dentistry?
A. Plaque accumulation
B. Tooth wear from tooth-to-tooth contact
,2026/2027
C. Chemical erosion of enamel
D. Gum inflammation
Correct Answer: B. Tooth-to-tooth contact wear
Rationale: Attrition refers to mechanical wear caused by chewing and tooth contact.
Plaque is bacterial biofilm, erosion is chemical damage, and gingivitis is gum
inflammation. Thus, only B defines attrition.
Question 4
What is plaque?
A. Hardened calculus
B. A bacterial film on teeth
C. Enamel layer
D. Root tissue
Correct Answer: B. A bacterial film on teeth
Rationale: Plaque is a soft biofilm composed of bacteria, saliva, and food debris.
Calculus is hardened plaque, enamel is the tooth’s outer layer, and the root is below
the gum line. Therefore, B is correct.
Question 5
Which imaging modality uses no radiation?
A. X-ray
B. CT scan
C. Fluoroscopy
D. Ultrasound
Correct Answer: D. Ultrasound
Rationale: Ultrasound uses sound waves rather than ionizing radiation. X-ray, CT, and
fluoroscopy all rely on radiation exposure. Therefore, ultrasound is the only safe
radiation-free modality.
Question 6
What happens to crystals in an ultrasound transducer?
A. They dissolve
B. They break
,2026/2027
C. They vibrate
D. They heat up permanently
Correct Answer: C. They vibrate
Rationale: Electrical pulses cause piezoelectric crystals to vibrate, producing sound
waves. They do not dissolve or break under normal use. This vibration is essential for
image generation.
Question 7
Ultrasound images typically display how many shades of gray?
A. 50
B. 100
C. 256
D. 512
Correct Answer: C. 256
Rationale: Ultrasound imaging uses 256 grayscale shades to represent tissue density
differences. This allows fine detail interpretation. Fewer or higher values are not
standard in diagnostic ultrasound.
Question 8
What does the gain control adjust in ultrasound?
A. Depth
B. Brightness
C. Frequency
D. Pulse rate
Correct Answer: B. Brightness
Rationale: Gain controls the amplification of returning echoes, affecting image
brightness. It does not alter depth or frequency. Therefore, B is correct.
Question 9
TGC (Time Gain Compensation) allows:
A. Depth-specific gain adjustment
B. Radiation control
, 2026/2027
C. Image freezing
D. Probe sterilization
Correct Answer: A. Depth-specific gain adjustment
Rationale: TGC adjusts brightness at different tissue depths to improve image clarity.
It compensates for signal loss with depth. It does not relate to sterilization or radiation.
Question 10
Proper ultrasound probe disinfection involves:
A. Autoclaving
B. Alcohol immersion
C. Glutaraldehyde wiping
D. Dry storage only
Correct Answer: C. Glutaraldehyde wiping
Rationale: High-level disinfection with glutaraldehyde is recommended for probes.
Autoclaving may damage equipment, and alcohol alone is insufficient. Therefore, C is
correct.
Question 11
A comet tail artifact is caused by:
A. Fluid pockets
B. Metal or air interfaces
C. Soft tissue density
D. Bone absorption
Correct Answer: B. Metal or air interfaces
Rationale: Highly reflective structures like metal or gas create reverberation artifacts.
This produces a comet tail appearance. Soft tissues do not create this artifact.
Question 12
Hypoechoic structures appear as:
A. Bright white
B. Dark gray
C. Black only
D. Hypershiny
