BB AALA Ch11 Rabbits Flashcards Preview

Rabbits > BB AALA Ch11 Rabbits > Flashcards

Flashcards in BB AALA Ch11 Rabbits Deck (63):
1

1. Which of the following are considerations when procuring rabbits for research purposes?
a. Variation in research results may be induced by gender, diurnal or seasonal effects
b. Rabbits from Specific Pathogen Free colonies should be utilized
c. Rabbits should be given a minimum of 72 hr habituation to facilities
d. All of the above

d

2

2. A preanesthetic fast of >12 hours is contraindicated in rabbits less than 3 kg because of:
a. Fasting-induced metabolic acidosis
b. Rapid drop in blood glucose
c. Both of the above
d. Neither of the above

c

3

3. Which of the following can successfully be used as an anticholinergic agent in rabbits:
a. Glycopyrrolate
b. Atropine
c. Cocaine
d. None of the above

a

4

4. Acepromazine is useful for venipuncture in the rabbit because of
a. Peripheral vasodilation
b. Adreno-receptor blockage
c. Sedation
d. All of the above

d

5

5. A contraindication to using chlorpromazine by the intramuscular route is:
a. Respiratory depression
b. Severe muscular necrosis
c. Orthostatic hypotension
d. All of the above

b

6

6. Xylazine in rabbits can be reversed by:
a. Atipamezole
b. Yohimbine
c. Doxapram
d. None of the above

b

7

7. Medetomidine in rabbits can be reversed by:
a. Atipamezole
b. Yohimbine
c. Doxapram
d. None of the above

a

8

8. Which of the following agents or combinations of agents will produce a surgical plane of anesthesia in the rabbit:
a. Xylazine
b. Medetomidine
c. Ketamine and diazepam
d. Ketamine/xylazine/midazolam

d

9

9. Detomidine is not recommended as an anesthetic agent in rabbits because:
a. High doses are required
b. Post-anesthetic anorexia is common
c. Myocardial necrosis is noted following high doses
d. All of the above

d

10

10. The use of opioids pre- or intraoperatively has the following benefits:
a. May prolong the period of surgical anesthesia
b. May allow lower doses of anesthetic agents
c. May reduce or eliminate the need for postoperative analgesia
d. All of the above

d

11

11. The use of high doses (240 mg/kg) of vitamin C as a preanesthetic has been reported to:
a. Reduce time to onset of anesthesia
b. Prolong anesthesia duration
c. Result in bradycardia and hyperglycemia
d. All of the above

d

12

12. Vascular access in the rabbit can be obtained by the:
a. Lateral (marginal) auricular veins
b. Cephalic veins
c. Recurrent tarsal veins
d. All of the above

d

13

13. Which of the following can be useful for successful endotracheal intubation of rabbits?
a. A pediatric laryngoscope
b. A hand-held otoscope with ear speculum
c. Topical anesthetic spray or lubricant
d. All of the above

d

14

14. A laryngeal mask airway (LMR)
a. Is more easily placed than an endotracheal tube
b. Allows the reduction of personnel exposure to waste gases by inflation of a cuff
c. Allows for positive-pressure ventilation
d. All of the above

d

15

15. The marked disadvantage to the use of pentobarbital as an anesthetic agent is:
a. Its tendency to cause respiratory depression and apnea
b. Bradycardia
c. Myocardial damage
d. All of the above

a

16

16. The combination of ketamine/xylazine:
a. Provides adequate anesthesia for moderately-invasive surgical procedures
b. Preserves respiratory and heart rates
c. Has minimal effect on blood/gas measurements
d. All of the above

a

17

17. Which of the following drug combinations has the greatest negative impact on arterial blood pressure?
a. Ketamine/xylazine
b. Ketamine/medetomidine
c. Ketamine/guaifenesin

a

18

18. Which of the following are true of fentanyl/droperidol use in rabbits:
a. Profound negative effects on respiratory rate and PaO2 at doses required for a surgical plan of anesthesia
b. Negative effects on heart rate and arterial blood pressure
c. Only recommended at doses uses for physical examination and restraint
d. All of the above

d

19

19. The advantages of chloralose/urethane anesthesia include:
a. Long duration of action
b. Preservation of baroreceptor reflexes
c. Excellent muscle relaxation
d. All of the above

d

20

20. The disadvantages of urethane anesthesia include:
a. Carcinogenicity
b. Slow recovery
c. Hypotension
d. All of the above

d

21

21. Halothane is a safe and affordable inhalation anesthetic agent in rabbits with the following caveats:
a. Cardiac output and arterial pressure are reduced
b. PaCO2 and respiratory rate are reduced
c. Halothane causes myocardial depression
d. All of the above

d

22

22. Which of the following anesthesia agents have been shown to decrease intraocular pressure in the rabbit?
a. Methohexital
b. Sevoflurane
c. Ketamine
d. A & B

d

23

23. Which of the following anesthesia agents have been shown to damage retinal photoreceptors in the rabbit?
a. Methohexital
b. Halothane/nitrous oxide
c. Urethane
d. A & B

d

24

24. A comparison of the following agents found which to provide the most reliable anesthesia in the rabbit:
a. Pentobarbital
b. Ketamine/xylazine
c. Halothane in O2/nitrous oxide
d. Fentanyl/fluanisone/diazepam

c

25

25. An advantage of sevoflurane as an anesthetic agent is/are:
a. Relatively low cost
b. Maintenance of arterial pressure and heart function
c. Good acceptance by the rabbit in mask induction
d. Rapid induction and recovery

d

26

26. Which of the following correctly lists the duration of motor nerve blockade from the following agents, from longest to shortest duration:
a. Amethocaine>Bupivacaine>Lidocaine>Procaine
b. Bupivacaine>Amethocaine>Lidocaine>Procaine
c. Amethocaine>Lidocaine> Bupivacaine >Procaine
d. Amethocaine>Bupivacaine>Procaine>Lidocaine

a

27

27. Which of the following anesthesia regimens results in the lowest fetal/maternal losses during fetal surgery:
a. Pentobarbital
b. Ether
c. Halothane
d. Methohexital

c

28

28. Which of the following reflexes is regarded as the most accurate measure of the depth of anesthesia in the rabbit:
a. Pinna reflex
b. Corneal reflex
c. Pedal withdrawal
d. Palpebral reflex

a

29

29. Which of these sites for placement of pulse-oximetry probes provides the LEAST reliable readings in the rabbit:
a. Digits
b. Ears
c. Tongue

b

30

30. Rabbits are prone to which of the following post-op complications:
a. Hypoglycemia
b. Ileus
c. Hepatic lipidosis
d. All of the above

d

31

31. Which of the following is a sign of pain in rabbits:
a. Reduced food and water consumption
b. Reduced activity
c. Guarding or tensing of the muscles
d. All of the above

d

32

32. True or False: Rabbits are routinely used as a model to investigate and define physiologic effects of new anesthetics and analgesics.

True

33

34. True or False: The serum and tissues of many rabbits contain an atropine esterase which inactivates atropine and may affect the half-life of other agents, such as lidocaine.

True

34

35. True or False: The use of midazolam combined with xylazine and alfentanil in rabbits has been associated with muscle rigidity and seizures.

True

35

36. True or False: Oxygen supplementation is recommended with the use of injectable anesthetic combinations containing medetomidine or midazolam in rabbits.

True

36

37. True or False: Postoperative fluid administration by the subcutaneous route is rarely used in rabbits.

False

37

38. True or False: Application of lidocaine-prilocaine cream to the ear of rabbits before venipuncture has been recommended to reduce pain.

True

38

39. True or False: A variety of anesthetic combinations, including ketamine/xylazine and ketamine/medazolam, have been successfully administered to rabbits by the intranasal route.

True

39

41. True or False: Premedication with a sedative is recommended before inducing anesthesia in rabbits with a mask or inhalation chamber because of the potential for apnea.

True

40

42. True or False: The anesthetic combination Equi-Thesin (containing pentobarbital, magnesium sulfate and chloral hydrate) was known for its variability in depth and duration of anesthesia and is no longer marketed.

True

41

43. True or False: Rabbits are known to develop a tolerance for pentobarbital, requiring increasing doses with subsequent anesthesias.

True

42

44. True or False: The use of ketamine for anesthesia results in a progressive decline in blood pressure in rabbits

True

43

45. True or False: Tiletamine use is best avoided in the rabbit because of nephrotoxicity.

True

44

46. True or False: Fentanyl/droperidol in doses adequate for surgical anesthesia has profound negative effects on respiratory rate and is not recommended

True

45

47. True or False: Respiratory depression induced by neuroleptanesthesia combinations can be reversed with naloxone while retaining analgesic properties.

True

46

48. True or False: Low doses of propofol by IV infusion are adequate for light anesthesia with smooth induction and rapid recovery when infusion is halted.

True

47

49. True or False: Hypnosis is a reliable and efficacious replacement for anesthesia for brief, minor procedures.

False

48

50. True or False: Atropine or glycopyrrolate is used in ophthalmic procedures to avoid the oculocardiac reflex.

True

49

51. True or False: In an inhalation anesthetic system for rabbits, the volume of fresh gas delivered should be 2 to 3 times the minute respiratory volume of the animal.

True

50

52. True or False: Apnea is a significant complication of mask or chamber induction of rabbits with inhalation anesthetics.

True

51

53. True or False: The cardiac anesthetic index is the quotient of the dose required to produce cardiac arrest and the MAC (minimal alveolar concentration).

True

52

54. True or False: Isoflurane has a higher cardiac anesthetic index than halothane.

True

53

55. True or False: Blunting the autonomic response to surgical trauma is considered desirable and associated with improve surgical outcomes.

True

54

56. True or False: In humans, preoperative infiltration of incision sites with a local anesthetic has not been shown to affect the course of post-operative pain or time to first request for analgesics.

False

55

57. True or False: Epidural catheters inserted between the sacrum and the first coccygeal vertebra in the rabbit have been maintained as long as two months without clinical sequelae.

True

56

58. True or False: Contrast media injected into the epidural space at T12 in the rabbit spread further cranially than caudally.

True

57

59. True or False: Rabbits can be safely given epidural anesthesia without prior sedation.

False

58

60. True or False: When utilizing paralytic agents in a surgical procedure, special monitoring is required to assure that adequate depth of anesthesia is maintained.

True

59

61. True or False: Due to their dense fur coat, hypothermia is not usually of concern during surgery on rabbits

False

60

62. True or False: Mixed agonist/antagonist opioid analgesics (butorphanol, pentazocine and naalbuphine) are contraindicated in post-operative rabbits due to their potential for severe respiratory depression.

False

61

63. True or False: Morphine produces hypertension and hyperglycemia in rabbits.

True

62

64. True or False: The dosage of orally-administered codeine and morphine must be increased by a factor of 10 to achieve the same level of efficacy as subcutaneous administration in the rabbit.

True

63

65. True or False: Mu-agonist opioids (fentanyl, alfentanil and sufentanil) can produce muscle rigidity in the rabbit if administered without concurrent sedation.

True