Free Veterinary Surgery MCQs with Answers
46 Veterinary Surgery MCQs from Veterinary Science, each with the correct answer and a written explanation of why it is correct. Free and unlimited, with no account needed.
Covers principles of asepsis, tissue handling, haemostasis, wound healing, surgical instruments, sutures, anaesthesia and perioperative care. It includes common procedures and conditions involving the skin, abdomen, bones, joints and urinary or reproductive tracts, while distinguishing surgical emergencies from cases managed medically.
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46 questions · page 1 of 3
- A. A clean wound with opposed edges
- B. A contaminated wound with dead tissue
- C. An infected wound with wide separation
- D. A granulating wound left open
Explanation: Healing by first intention occurs when clean wound edges are accurately opposed with minimal tissue loss.
Correct answer: A clean wound with opposed edges- A. Stimulating acetylcholine receptors
- B. Blocking voltage-gated sodium channels
- C. Increasing calcium entry into nerves
- D. Inhibiting prostaglandin synthesis
Explanation: Lidocaine prevents the generation and conduction of nerve impulses by blocking voltage-gated sodium channels.
Correct answer: Blocking voltage-gated sodium channels- A. Severe cyanosis with fixed pupils
- B. Bradycardia with warm extremities
- C. Tachycardia with pale mucous membranes
- D. Profound hypotension with no response
Explanation: During compensated hypovolaemic shock, sympathetic activity increases heart rate and peripheral vasoconstriction, producing pale mucous…
Correct answer: Tachycardia with pale mucous membranes- A. Subcutaneous fat over the limb
- B. Articular cartilage within the joint
- C. Synovial membrane beside the bone
- D. Periosteum around the fracture
Explanation: The periosteum contains osteogenic cells and contributes substantially to external callus formation during fracture healing.
Correct answer: Periosteum around the fracture- A. Returned into the original body cavity
- B. Removed permanently without surgery
- C. Seen through an unbroken skin surface
- D. Separated from the hernial sac by force
Explanation: A reducible hernia contains tissue that can be pushed or returned through the hernial ring into its normal body cavity.
Correct answer: Returned into the original body cavity- A. Concentrated hydrogen peroxide solution
- B. Sterile isotonic saline solution
- C. Strong alcoholic iodine solution
- D. Undiluted chlorhexidine solution
Explanation: Sterile isotonic saline is gentle on viable tissue and effectively removes debris during wound lavage.
Correct answer: Sterile isotonic saline solution- A. Polypropylene
- B. Nylon
- C. Polydioxanone
- D. Stainless steel
Explanation: Polydioxanone is a synthetic absorbable monofilament that retains useful tensile strength for deeper tissue healing.
Correct answer: Polydioxanone- A. A blocked external ear canal
- B. A fractured mandibular tooth
- C. A uterine torsion before calving
- D. A reticular foreign body causing disease
Explanation: Rumenotomy is commonly performed in cattle to remove penetrating foreign bodies associated with traumatic reticuloperitonitis.
Correct answer: A reticular foreign body causing disease- A. A wound communicating with the fracture
- B. Crepitus during limb examination
- C. Pain on movement of the limb
- D. Swelling around the fracture site
Explanation: An open fracture communicates with the external environment through a skin or mucosal wound, exposing the fracture to contamination.
Correct answer: A wound communicating with the fracture- A. To increase postoperative wound contraction
- B. To reduce regurgitation and aspiration risk
- C. To prevent all anaesthetic hypotension
- D. To accelerate absorption of injectable drugs
Explanation: Fasting reduces the volume of stomach contents and therefore lowers the risk of regurgitation and aspiration during anaesthesia.
Correct answer: To reduce regurgitation and aspiration risk- A. Dry heat at atmospheric pressure
- B. Ultraviolet light exposure
- C. Saturated steam under pressure
- D. Chemical disinfection in alcohol
Explanation: An autoclave uses saturated steam under pressure to transfer heat efficiently and destroy microorganisms, including bacterial spores.
Correct answer: Saturated steam under pressure- A. Active lymphatic pumping
- B. Continuous negative pressure
- C. Intermittent arterial pressure
- D. Gravity and capillary action
Explanation: A Penrose drain allows fluid to move along its surface by gravity and capillary action.
Correct answer: Gravity and capillary action13. Which fixation method is designed to produce interfragmentary compression across a fracture line?
- A. A lag screw
- B. A cerclage wire
- C. A bone plate spacer
- D. An intramedullary pin
Explanation: A lag screw compresses one fracture fragment against another when the near cortex is overdrilled and the far cortex provides the thread…
Correct answer: A lag screw- A. Correction of gastric dilatation
- B. Removal of urinary bladder calculi
- C. Repair of a ruptured diaphragm
- D. Excision of a renal tumour
Explanation: Cystotomy is an incision into the urinary bladder and is commonly performed to remove bladder stones.
Correct answer: Removal of urinary bladder calculi- A. Ureteral trigone
- B. Round ligament of the liver
- C. Ovarian pedicle
- D. Caudal mesenteric artery
Explanation: The ovarian pedicle contains the ovarian artery and vein and must be ligated securely during ovariohysterectomy.
Correct answer: Ovarian pedicle- A. L6 and L7
- B. T13 and L1
- C. S1 and S2
- D. L7 and S1
Explanation: The lumbosacral epidural space is located between the seventh lumbar vertebra and the first sacral vertebra.
Correct answer: L7 and S1- A. Cushing inverting pattern
- B. Simple interrupted pattern
- C. Vertical mattress pattern
- D. Simple continuous pattern
Explanation: The Cushing pattern is an inverting pattern that does not penetrate the lumen of the organ.
Correct answer: Cushing inverting pattern- A. Increase wound pigmentation
- B. Remove devitalised tissue
- C. Prevent all wound contraction
- D. Replace lost blood volume
Explanation: Debridement removes dead tissue, foreign material and heavily contaminated tissue that can support bacterial growth.
Correct answer: Remove devitalised tissue- A. Mild transient hypothermia
- B. Temporary reduction in appetite
- C. Progressive septic peritonitis
- D. Moderate postoperative bruising
Explanation: Anastomotic leakage releases intestinal contents into the peritoneal cavity and can cause progressive septic peritonitis.
Correct answer: Progressive septic peritonitis- A. Ureteral reimplantation
- B. Perineal herniorrhaphy
- C. Cystopexy
- D. Perineal urethrostomy
Explanation: A perineal urethrostomy creates a wider permanent opening in the distal urethra, commonly in male cats with recurrent obstruction.
Correct answer: Perineal urethrostomyVeterinary Surgery MCQs: common questions
Are these Veterinary Surgery MCQs free?
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How many Veterinary Surgery MCQs are on this page?
There are 46 Veterinary Surgery MCQs in the Veterinary Science bank, shown 20 to a page with the correct answer and an explanation on each.
Does every Veterinary Surgery MCQ have an explanation?
Yes. Each Veterinary Surgery question shows the correct option and a written explanation of why it is correct, so a wrong answer teaches you something rather than just being marked wrong.
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