Veterinary Anaesthesiology MCQs 50 Score: 0 Attempted: 0/50 Subscribe 1. Which drug is most commonly used for induction of anesthesia in small animals? (A) Ketamine (B) Xylazine (C) Atropine (D) Diazepam 2. The term “balanced anesthesia” refers to: (A) Use of only inhalant agents (B) Combination of drugs for hypnosis, analgesia, and muscle relaxation (C) Complete anesthesia with no side effects (D) Use of a single drug 3. Which inhalant anesthetic has the fastest induction and recovery? (A) Halothane (B) Isoflurane (C) Sevoflurane (D) Nitrous oxide 4. The minimum alveolar concentration (MAC) measures: (A) Depth of anesthesia (B) Potency of inhalant anesthetic (C) Blood pressure during anesthesia (D) Heart rate under anesthesia 5. Which premedication is commonly used to reduce salivation? (A) Atropine (B) Diazepam (C) Xylazine (D) Propofol 6. Which is a dissociative anesthetic? (A) Ketamine (B) Thiopental (C) Isoflurane (D) Halothane 7. The most common complication during general anesthesia in horses is: (A) Hypothermia (B) Colic (C) Myopathy (D) Diarrhea 8. The term “neuroleptanalgesia” means: (A) Analgesia without sedation (B) Combination of tranquilizer and opioid (C) Complete anesthesia without analgesia (D) Muscle relaxation only 9. Propofol is preferred for: (A) Long-term anesthesia in ruminants (B) Short procedures due to rapid recovery (C) Inducing seizures (D) Reducing blood pressure in horses 10. Which inhalant anesthetic is no longer widely used due to hepatotoxicity? (A) Isoflurane (B) Sevoflurane (C) Halothane (D) Desflurane 11. Which gas is commonly used with oxygen to reduce anesthetic requirements? (A) Nitrous oxide (B) Carbon dioxide (C) Helium (D) Argon 12. Which drug is used as a muscle relaxant during anesthesia? (A) Pancuronium (B) Ketamine (C) Propofol (D) Atropine 13. The ideal anesthetic agent should have: (A) High MAC (B) Low blood:gas partition coefficient (C) High blood:gas partition coefficient (D) Long induction period 14. The main purpose of pre-anesthetic medication is to: (A) Induce anesthesia directly (B) Calm the animal and reduce anesthetic dose (C) Increase MAC (D) Stop all reflexes immediately 15. Which is an alpha-2 adrenergic agonist used in veterinary anesthesia? (A) Diazepam (B) Xylazine (C) Atropine (D) Fentanyl 16. Which species is most sensitive to xylazine? (A) Dogs (B) Horses (C) Cattle (D) Cats 17. The stage of surgical anesthesia is: (A) Stage I (B) Stage II (C) Stage III (D) Stage IV 18. What is the primary site for inhalant anesthetic elimination? (A) Liver (B) Kidney (C) Lungs (D) Spleen 19. Which anesthetic agent can cause malignant hyperthermia in pigs? (A) Halothane (B) Isoflurane (C) Sevoflurane (D) Nitrous oxide 20. The term “analgesia” refers to: (A) Loss of consciousness (B) Loss of pain sensation (C) Loss of memory (D) Loss of muscle tone 21. Which drug is an opioid analgesic commonly used in anesthesia? (A) Morphine (B) Ketamine (C) Atropine (D) Diazepam 22. The color code for oxygen cylinders is: (A) Black with white shoulder (B) Blue (C) Green (D) Yellow 23. Which drug is an antagonist for xylazine? (A) Atipamezole (B) Atropine (C) Diazepam (D) Naloxone 24. Endotracheal intubation is done to: (A) Prevent vomiting (B) Maintain open airway and deliver anesthetic gases (C) Reduce blood pressure (D) Increase salivation 25. Which is an intravenous induction agent? (A) Isoflurane (B) Sevoflurane (C) Propofol (D) Nitrous oxide 26. Local anesthetics block: (A) Sodium channels (B) Potassium channels (C) Calcium channels (D) Chloride channels 27. Which local anesthetic has the longest duration of action? (A) Lidocaine (B) Bupivacaine (C) Procaine (D) Tetracaine 28. Which drug is used to reverse opioid anesthesia? (A) Diazepam (B) Atropine (C) Naloxone (D) Xylazine 29. The most reliable sign of surgical depth anesthesia is: (A) Eye rotation and palpebral reflex (B) Heart rate (C) Respiratory rate (D) Tail movement 30. Which is a common side effect of ketamine anesthesia? (A) Hypotension (B) Apnea (C) Increased salivation (D) Bradycardia 31. The term “MAC awake” refers to: (A) Minimum dose to maintain sleep (B) Concentration where 50% of patients respond to verbal commands (C) Maximum anesthesia depth (D) Total oxygen consumption 32. Which species has the highest risk of regurgitation during anesthesia? (A) Cats (B) Dogs (C) Ruminants (D) Horses 33. Which monitoring tool is used to measure end-tidal CO2 during anesthesia? (A) Pulse oximeter (B) Capnograph (C) ECG (D) Sphygmomanometer 34. Hypothermia during anesthesia is prevented by: (A) Cooling pads (B) Forced warm air blankets (C) Cold saline lavage (D) Ice packs 35. Which inhalant anesthetic has the lowest blood:gas partition coefficient? (A) Desflurane (B) Isoflurane (C) Halothane (D) Sevoflurane 36. The term “induction” in anesthesia means: (A) Recovery from anesthesia (B) Beginning of anesthesia (C) Monitoring anesthesia (D) Ending the procedure 37. Which local anesthetic is safest for use in cats? (A) Lidocaine (B) Bupivacaine (C) Benzocaine (D) Tetracaine 38. What is the purpose of fasting animals before anesthesia? (A) Prevent dehydration (B) Reduce anesthetic requirements (C) Prevent regurgitation and aspiration (D) Induce hypoglycemia 39. Which anesthetic circuit is preferred for small animals? (A) Circle system (B) Bain system (C) To-and-fro system (D) Open drop system 40. The color code for nitrous oxide cylinders is: (A) Green (B) Blue (C) Black (D) Yellow 41. Which drug can cause “wind-up” pain if not administered preemptively? (A) NSAIDs (B) Opioids (C) Ketamine (D) Local anesthetics 42. The term “recovery” in anesthesia refers to: (A) Time during induction (B) Period when animal regains consciousness (C) Duration of surgery (D) Loss of reflexes 43. Which inhalant anesthetic is least potent? (A) Nitrous oxide (B) Isoflurane (C) Sevoflurane (D) Halothane 44. Which drug reduces secretions in the respiratory tract during anesthesia? (A) Atropine (B) Diazepam (C) Morphine (D) Lidocaine 45. The use of epidural anesthesia is common in: (A) Dogs only (B) Large animals for obstetrical procedures (C) Birds (D) Fish 46. What is the ideal position for a ruminant during general anesthesia? (A) Dorsal recumbency (B) Lateral recumbency with head elevated (C) Ventral recumbency (D) Sternal recumbency with head low 47. Which is an ultra-short acting barbiturate? (A) Thiopental (B) Phenobarbital (C) Pentobarbital (D) Secobarbital 48. The main risk of anesthesia in brachycephalic breeds is: (A) Hypoglycemia (B) Airway obstruction (C) Hyperthermia (D) Renal failure 49. Which drug is used to treat bradycardia during anesthesia? (A) Atropine (B) Diazepam (C) Ketamine (D) Lidocaine 50. The main advantage of using sevoflurane over isoflurane is: (A) Cheaper cost (B) Faster induction and recovery (C) Greater potency (D) Less MAC variability