LATG Chp.17 Anesthesia and Analgesia
questions with actual answers.
General anesthesia ANS -A state in which the animal is unconscious to pain and sensation, and the
body is immobile.
Analgesia ANS -The alleviation of pain, and anesthetics provide _______while the animal is
unconscious.
Topical anesthesia ANS -Application of a local anesthetic to the skin and mucous membranes.
Regional anesthesia ANS -The injection of a local anesthetic to infiltrate around a nerve.
Analgesics ANS -Drugs with a primary effect of treating and preventing pain without affecting
consciousness.
4 ANS -General anesthesia is divided into ______ stages, based upon the degree of depression in the
CNS induced by the anesthetic agent.
Stage 1 ANS -Stage of anesthesia?
-Voluntary movement stage of general anesthesia.
-Typically last the initial administration of an anesthetic until loss of consciousness.
-Animal may become excited; any fear or anxiety that the animal has is accentuated.
Stage 2 ANS -Stage of anesthesia?
-Delirium or involuntary movement
-Loss of consciousness to a regular breathing pattern
,-Animal loses voluntary control of movement
-Reflexes are still present and are sometimes exaggerated.
-Not possible to intubate
Stage 3 ANS -Stage of anesthesia?
-Surgical anesthesia
-Continued loss of reflexes and muscle relaxation
-3 planes
Stage 3: Light Plane ANS -Stage/Plane of anesthesia?
-Surgical anesthesia
-Sufficient for chemical immobilization of the animal for nonpainful procedures.
-Eyeball movement and responses of skeletal muscle reflexes.
Stage 3: Medium Plane ANS -Stage/Plane of anesthesia?
-Surgical anesthesia
-Suitable for most surgical procedures
-Respiration and pulse stable.
-Most reflexes not present.
Stage 3: Deep Plane ANS -Stage/Plane of anesthesia?
-Surgical anesthesia
-Respiration is severely depressed. Breathing from diaphragm, not ribcage.
-Ventilator is usually used
Stage 4 ANS -Stage of anesthesia?
-Extreme CNS depression
, -Respiratory and circulatory failure
-Death if not resuscitated
True ANS -Different drugs may be used in the induction and maintenance phases, or the same drug
may be used for both induction and maintenance.
-Stop administration of the anesthetic
-Reversal drugs
-Animal eliminates the drug ANS -An animal is allowed to wake up/recover from anesthesia by what
means?
Animal use protocol
IACUC ANS -Where can the anesthesia plan be found? Who approves it?
-Administering the anesthetic drug
-Monitoring the animal during the procedure and in recovery
-Responding to an anesthetic emergency ANS -An anesthesia plan should include procedure for
Guinea pig ANS -This 'rodent' should be NPO'd prior to ETtube placement because residual food
material in the pharynx could contaminate the ET tube....which could then cause inflammation of the
respiratory tract lining, and possibly aspiration pneumonia.
3-4 hours ANS -If a rodent needs to be fasted for a procedure (Gastric or enteric surgery), how long
must it be fasted?
True ANS -If an animal is coprophagic, measures should be taken to prevent them from ingesting their
feces during the fasting period.
True ANS -An overnight fasting of rodents should be avoided, unless required for a study, because
depletion of the animals' energy reserves can delay recovery.
questions with actual answers.
General anesthesia ANS -A state in which the animal is unconscious to pain and sensation, and the
body is immobile.
Analgesia ANS -The alleviation of pain, and anesthetics provide _______while the animal is
unconscious.
Topical anesthesia ANS -Application of a local anesthetic to the skin and mucous membranes.
Regional anesthesia ANS -The injection of a local anesthetic to infiltrate around a nerve.
Analgesics ANS -Drugs with a primary effect of treating and preventing pain without affecting
consciousness.
4 ANS -General anesthesia is divided into ______ stages, based upon the degree of depression in the
CNS induced by the anesthetic agent.
Stage 1 ANS -Stage of anesthesia?
-Voluntary movement stage of general anesthesia.
-Typically last the initial administration of an anesthetic until loss of consciousness.
-Animal may become excited; any fear or anxiety that the animal has is accentuated.
Stage 2 ANS -Stage of anesthesia?
-Delirium or involuntary movement
-Loss of consciousness to a regular breathing pattern
,-Animal loses voluntary control of movement
-Reflexes are still present and are sometimes exaggerated.
-Not possible to intubate
Stage 3 ANS -Stage of anesthesia?
-Surgical anesthesia
-Continued loss of reflexes and muscle relaxation
-3 planes
Stage 3: Light Plane ANS -Stage/Plane of anesthesia?
-Surgical anesthesia
-Sufficient for chemical immobilization of the animal for nonpainful procedures.
-Eyeball movement and responses of skeletal muscle reflexes.
Stage 3: Medium Plane ANS -Stage/Plane of anesthesia?
-Surgical anesthesia
-Suitable for most surgical procedures
-Respiration and pulse stable.
-Most reflexes not present.
Stage 3: Deep Plane ANS -Stage/Plane of anesthesia?
-Surgical anesthesia
-Respiration is severely depressed. Breathing from diaphragm, not ribcage.
-Ventilator is usually used
Stage 4 ANS -Stage of anesthesia?
-Extreme CNS depression
, -Respiratory and circulatory failure
-Death if not resuscitated
True ANS -Different drugs may be used in the induction and maintenance phases, or the same drug
may be used for both induction and maintenance.
-Stop administration of the anesthetic
-Reversal drugs
-Animal eliminates the drug ANS -An animal is allowed to wake up/recover from anesthesia by what
means?
Animal use protocol
IACUC ANS -Where can the anesthesia plan be found? Who approves it?
-Administering the anesthetic drug
-Monitoring the animal during the procedure and in recovery
-Responding to an anesthetic emergency ANS -An anesthesia plan should include procedure for
Guinea pig ANS -This 'rodent' should be NPO'd prior to ETtube placement because residual food
material in the pharynx could contaminate the ET tube....which could then cause inflammation of the
respiratory tract lining, and possibly aspiration pneumonia.
3-4 hours ANS -If a rodent needs to be fasted for a procedure (Gastric or enteric surgery), how long
must it be fasted?
True ANS -If an animal is coprophagic, measures should be taken to prevent them from ingesting their
feces during the fasting period.
True ANS -An overnight fasting of rodents should be avoided, unless required for a study, because
depletion of the animals' energy reserves can delay recovery.
