All Free Veterinary Science MCQs with Answers
Every Veterinary Science question in the bank, across all chapters, each with the correct answer and a written explanation. Free and unlimited, with no account needed.
758 questions · page 38 of 38
741. Which collagen type predominates during the early proliferative phase of soft tissue wound healing?
- A. Type III collagen
- B. Type II collagen
- C. Type I collagen
- D. Type IV collagen
Explanation: Fibroblasts initially produce mainly type III collagen, which forms a relatively weak extracellular framework.
Correct answer: Type III collagen- A. To increase venous congestion in the limb
- B. To produce a temporary bloodless surgical field
- C. To accelerate bone healing after fixation
- D. To prevent postoperative limb swelling
Explanation: A tourniquet temporarily stops arterial inflow and venous outflow, giving the surgeon a clearer field.
Correct answer: To produce a temporary bloodless surgical field743. Which parameter is most useful for assessing adequacy of ventilation during general anaesthesia?
- A. Packed cell volume
- B. Peripheral body temperature
- C. End tidal carbon dioxide
- D. Capillary refill time
Explanation: End tidal carbon dioxide provides an estimate of alveolar carbon dioxide and is therefore a useful indicator of ventilation.
Correct answer: End tidal carbon dioxide- A. Adson tissue forceps
- B. Foerster sponge forceps
- C. Doyen intestinal clamp
- D. Periosteal elevator
Explanation: A periosteal elevator has a broad, firm blade designed to separate periosteum from bone.
Correct answer: Periosteal elevator- A. External skeletal fixation
- B. Simple skin stapling
- C. Tension band skin closure
- D. Intravenous fluid therapy
Explanation: External skeletal fixation stabilises bone with pins or wires connected to an external frame, while preserving much of the fracture site…
Correct answer: External skeletal fixation- A. Splenectomy alone
- B. Gastropexy
- C. Pyloromyotomy alone
- D. Colopexy
Explanation: Gastropexy attaches the stomach to the abdominal wall and limits its ability to rotate again.
Correct answer: Gastropexy- A. Maximum tensile strength of the scar
- B. Complete collagen remodelling
- C. Mild inflammation with neutrophil migration
- D. Permanent replacement by mature bone
Explanation: The inflammatory phase begins soon after injury and includes vasodilation, increased vascular permeability, and migration of neutrophils.
Correct answer: Mild inflammation with neutrophil migration- A. A mild rise in peripheral pulse rate
- B. A brief increase in respiratory rate
- C. Transient pupil dilation after induction
- D. A progressive fall in core body temperature
Explanation: A progressive decrease in core temperature is the direct evidence of intraoperative hypothermia.
Correct answer: A progressive fall in core body temperature- A. Ethylene oxide gas
- B. Steam under pressure
- C. Dry heat exposure
- D. Boiling water treatment
Explanation: Ethylene oxide gas sterilises heat-sensitive equipment at a relatively low temperature and penetrates packaged materials.
Correct answer: Ethylene oxide gas750. Which abdominal incision usually provides the widest access for exploratory laparotomy in a dog?
- A. Lateral flank incision
- B. Ventral midline incision
- C. Paramedian abdominal incision
- D. Caudal paracostal incision
Explanation: The ventral midline incision gives broad access to most abdominal organs and can be extended cranially or caudally when needed.
Correct answer: Ventral midline incision- A. Enlarge the surgical incision
- B. Reduce tissue inflammation
- C. Prevent ligature slippage
- D. Speed epithelial migration
Explanation: A transfixation ligature passes through the pedicle and anchors the ligature, reducing the risk of slipping from a large or thick vascular…
Correct answer: Prevent ligature slippage- A. Inverting pattern
- B. Eversion pattern
- C. Purse-string pattern
- D. Appositional pattern
Explanation: An appositional pattern places the intestinal cut edges directly against each other while causing minimal narrowing of the lumen.
Correct answer: Appositional pattern- A. Splenic torsion
- B. Uncomplicated gastritis
- C. Mild dental calculus
- D. Simple otitis externa
Explanation: Splenic torsion can impair venous drainage, cause splenic enlargement, pain and vascular compromise, and may require splenectomy.
Correct answer: Splenic torsion- A. Immediately after skin closure
- B. About 30 to 60 minutes before incision
- C. Only after the first fever
- D. Several days before admission
Explanation: Administration about 30 to 60 minutes before incision allows effective tissue concentrations when contamination occurs.
Correct answer: About 30 to 60 minutes before incision- A. Converts compression into distraction
- B. Eliminates all rotational forces
- C. Converts tensile force into compression
- D. Prevents blood supply to the bone
Explanation: A tension-band construct converts distracting tensile forces on the convex side of a fracture into compression at the fracture line.
Correct answer: Converts tensile force into compression- A. Stabilise a fractured mandible
- B. Immediately enlarge a narrowed trachea
- C. Drain fluid from the thorax
- D. Gradually occlude a portosystemic shunt
Explanation: An ameroid constrictor gradually closes an anomalous portosystemic vessel as its case absorbs fluid and expands.
Correct answer: Gradually occlude a portosystemic shunt757. Which type of surgical needle point is generally most appropriate for passing through canine skin?
- A. Reverse-cutting point
- B. Blunt taper point
- C. Round-bodied atraumatic point
- D. Tapered intestinal point
Explanation: A reverse-cutting needle has cutting edges oriented to reduce the chance of the needle cutting outward through the skin margin.
Correct answer: Reverse-cutting point- A. Deliver oxygen directly into the stomach
- B. Provide enteral nutrition when oral intake is not possible
- C. Permanently prevent gastric acid secretion
- D. Replace the function of the urinary bladder
Explanation: A gastrostomy tube permits feeding directly into the stomach when swallowing or oral intake is unsafe, while gastrointestinal function…
Correct answer: Provide enteral nutrition when oral intake is not possible