Animal Anesthesia Quiz 8
When it comes to surgery, there’s no more important tool in a veterinary practice than anaesthesia, which allows the animal to be put to sleep and allow the vet to do their job. But what are the facts behind the process of putting the animal to sleep? Find out in Animal Anaesthesia Quiz 8!
Questions and Answers
- 1.
The inhalation anesthetic agent that is noted to be highly flammable and explosive is:
- A.
Nitrous oxide
- B.
Halothane
- C.
Ether
- D.
Isoflurane
Correct Answer
C. EtherExplanation
Ether is a highly flammable and explosive inhalation anesthetic agent. It has a low flash point, meaning it can easily ignite and cause explosions. Due to its flammability, ether is no longer commonly used as an anesthetic agent.Rate this question:
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- 2.
Factors that will decrease the MAC (minimal alveolar concentration) include:
- A.
Severe hypotension
- B.
Hypothermia
- C.
Aging
- D.
All are correct
Correct Answer
D. All are correctExplanation
All of the factors mentioned, namely severe hypotension, hypothermia, and aging, can decrease the MAC (minimal alveolar concentration). Severe hypotension reduces the blood flow to the brain, resulting in a decreased response to anesthetic agents. Hypothermia slows down the metabolism and affects the distribution of anesthetic agents in the body, requiring a lower concentration to achieve the desired effect. Aging leads to a decrease in the MAC due to changes in the central nervous system and decreased sensitivity to anesthetics. Therefore, all of these factors can contribute to a decrease in MAC.Rate this question:
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- 3.
The anesthetic agent that is noted for the slower induction and recovery is:
- A.
Methoxyflurane
- B.
Isoflurane
- C.
Sevoflurane
- D.
Nitrous oxide
Correct Answer
A. MethoxyfluraneExplanation
Methoxyflurane is the correct answer because it is known for its slower induction and recovery compared to the other anesthetic agents listed. This means that it takes longer for the effects of methoxyflurane to be felt by the patient and also longer for the effects to wear off after the procedure. This slower onset and offset of action may be desirable in certain situations where a longer duration of anesthesia is needed.Rate this question:
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- 4.
A property that is NOT desirable for inhalation anesthetic agents is:
- A.
Chemically stable and nonreactive with soda lime
- B.
Requires high concentrations in the alveoli to produce anesthesia
- C.
Low blood solubility for rapid inductions and recoveries
- D.
Not irritating to mucus membranes, not nausea inducing
Correct Answer
B. Requires high concentrations in the alveoli to produce anesthesiaExplanation
An inhalation anesthetic agent that requires high concentrations in the alveoli to produce anesthesia is not desirable because it can increase the risk of toxicity and side effects. Higher concentrations may lead to respiratory depression and cardiovascular instability. Ideally, an inhalation anesthetic agent should have a low minimum alveolar concentration (MAC), which means it can produce anesthesia at a lower concentration and reduce the risk of adverse effects.Rate this question:
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- 5.
The percentage of isoflurane that is metabolized by the liver is:
- A.
0.25% or minimal metabolism
- B.
5% or moderate metabolism
- C.
15% or moderate to considerable
- D.
50% or considerable metabolism
Correct Answer
A. 0.25% or minimal metabolismExplanation
The correct answer is 0.25% or minimal metabolism. This means that only a small percentage of isoflurane is metabolized by the liver. The majority of the drug remains unchanged and is excreted from the body without being broken down by the liver.Rate this question:
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- 6.
The recommended maintenance setting (what %) for isoflurane for surgical plane of anesthesia is:
- A.
.25%
- B.
1%
- C.
2 - 3%
- D.
5%
Correct Answer
C. 2 - 3%Explanation
The recommended maintenance setting for isoflurane for the surgical plane of anesthesia is 2 - 3%. This range is commonly used to maintain the desired level of anesthesia during surgery. It ensures that the patient remains in a deep enough state of anesthesia to prevent awareness and discomfort, while also minimizing the risk of overdose or adverse effects. This range allows for flexibility in adjusting the anesthesia level based on the patient's individual needs and the requirements of the surgical procedure.Rate this question:
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- 7.
The anesthetic agent that is most potent is:
- A.
Nitrous oxide
- B.
Sevoflurane
- C.
Isoflurane
- D.
Halothane
Correct Answer
D. HalothaneExplanation
Halothane is the most potent anesthetic agent among the options provided. It is a volatile inhalation anesthetic that acts by depressing the central nervous system. It has a high potency, meaning that it requires a lower concentration to produce anesthesia compared to other agents. This makes it an effective choice for surgical procedures. Nitrous oxide, sevoflurane, and isoflurane are also anesthetic agents but are less potent than halothane.Rate this question:
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- 8.
The anesthetic agent that is the least soluble is:
- A.
Methoxyflurane
- B.
Halothane
- C.
Isoflurane
- D.
Sevoflurane
Correct Answer
D. SevofluraneExplanation
Sevoflurane is the least soluble anesthetic agent among the options given. Solubility is an important factor in determining the effectiveness of an anesthetic agent, as it affects how quickly the agent can be absorbed and eliminated by the body. A less soluble agent like sevoflurane allows for faster induction and emergence from anesthesia, making it a preferred choice in many clinical settings.Rate this question:
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- 9.
A true statement concerning mask induction of anesthesia is:
- A.
Best reserved for high risk patients that are adequately sedated
- B.
Can greatly increase waste gas in the work environment
- C.
An anesthetic with low solubility is advised
- D.
All are correct
Correct Answer
D. All are correctExplanation
All of the statements provided are correct regarding mask induction of anesthesia. Mask induction is best reserved for high-risk patients who are adequately sedated, as it allows for a controlled and monitored administration of anesthesia. It can greatly increase waste gas in the work environment, which needs to be properly managed to ensure the safety of healthcare professionals. Furthermore, using an anesthetic with low solubility is advised during mask induction to minimize the risk of complications. Therefore, all of the given statements are accurate.Rate this question:
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- 10.
Higher concentrations of sevoflurane can result in rapid changes in anesthetic depth leading to hypotension and respiratory depression
- A.
True
- B.
False
Correct Answer
A. TrueExplanation
Higher concentrations of sevoflurane can result in rapid changes in anesthetic depth leading to hypotension and respiratory depression. This is because sevoflurane is a potent inhalation anesthetic that affects the central nervous system. When the concentration of sevoflurane is increased, it can cause a deeper level of anesthesia, which may lead to a decrease in blood pressure (hypotension) and a decrease in respiratory function (respiratory depression). Therefore, the statement is true.Rate this question:
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- 11.
The inhalation anesthetic agent that has been associated with the production of metabolites that are toxic to the renal system is:
- A.
Sevoflurane
- B.
Isoflurane
- C.
Halothane
- D.
Methoxyflurane
Correct Answer
D. MethoxyfluraneExplanation
Methoxyflurane is the inhalation anesthetic agent that has been associated with the production of metabolites that are toxic to the renal system. This means that when methoxyflurane is metabolized in the body, it forms toxic byproducts that can harm the kidneys. Sevoflurane, isoflurane, and halothane do not have the same association with renal toxicity.Rate this question:
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- 12.
The inhalation anesthetic agent that is NOT commonly used in a precision vaporizer is:
- A.
Isoflurane
- B.
Sevoflurane
- C.
Methoxyflurane
- D.
Halothane
Correct Answer
C. MethoxyfluraneExplanation
Methoxyflurane is the correct answer because it is not commonly used in a precision vaporizer. Precision vaporizers are designed to deliver specific concentrations of anesthetic agents, and while isoflurane, sevoflurane, and halothane are commonly used in these vaporizers, methoxyflurane is not. Methoxyflurane has fallen out of favor due to its potential for kidney and liver toxicity, and as a result, it is not commonly used in modern anesthesia practice.Rate this question:
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- 13.
An anesthetic agent that has been associated with some respiratory depression is:
- A.
Isoflurane
- B.
Methoxyflurane
- C.
Halothane
- D.
Sevorflurane
- E.
All of the above
Correct Answer
E. All of the aboveExplanation
All of the anesthetic agents mentioned in the options (isoflurane, methoxyflurane, halothane, and sevorflurane) have been associated with respiratory depression. This means that these agents can potentially cause a decrease in the rate and depth of breathing, leading to inadequate oxygenation of the blood. It is important for healthcare providers to monitor patients closely during anesthesia administration to detect and manage any respiratory depression that may occur.Rate this question:
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- 14.
An anesthetic gas that is a very weak anesthetic drug that cannot produce anesthesia by itself is:
- A.
Ether
- B.
Methoxyflurane
- C.
Halothane
- D.
Nitrous oxide
Correct Answer
D. Nitrous oxideExplanation
Nitrous oxide is a very weak anesthetic drug that cannot produce anesthesia by itself. While it has some analgesic properties, it is primarily used as an adjunct to other anesthetic agents to enhance their effects. Nitrous oxide is commonly used in combination with other anesthetics to provide pain relief and reduce anxiety during various medical and dental procedures. However, it is not potent enough to induce anesthesia on its own.Rate this question:
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- 15.
The inhalation anesthetic agent that has the most tendency to sensitize the heart to the production of epinephrine induced arrhythmias is:
- A.
Sevoflurane
- B.
Methoxyflurane
- C.
Halothane
- D.
Isoflurane
Correct Answer
C. HalothaneExplanation
Halothane is the correct answer because it has been known to sensitize the heart to the production of epinephrine induced arrhythmias. This means that when epinephrine is administered, halothane can increase the likelihood of abnormal heart rhythms occurring. This can be a dangerous side effect, especially in patients with pre-existing heart conditions. Sevoflurane, methoxyflurane, and isoflurane are also inhalation anesthetic agents, but they do not have the same tendency to sensitize the heart to epinephrine induced arrhythmias as halothane does.Rate this question:
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- 16.
When inducing anesthesia by mask induction using isoflurane, what is the maximum percentage of isoflurane that is recommended?
- A.
3.0%
- B.
4.0%
- C.
5.0%
- D.
6.0%
Correct Answer
A. 3.0%Explanation
The maximum percentage of isoflurane that is recommended for mask induction is 3.0%. This is because higher concentrations of isoflurane can increase the risk of respiratory depression and cardiovascular side effects. Keeping the concentration at 3.0% ensures a safe and effective induction of anesthesia while minimizing potential complications.Rate this question:
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- 17.
In patients that are anesthetized with sevoflurane, there is profound muscle relaxation seen at lighter planes of anesthesia
- A.
True
- B.
False
Correct Answer
B. FalseExplanation
False. In patients anesthetized with sevoflurane, muscle relaxation is not profound at lighter planes of anesthesia. Sevoflurane is a volatile anesthetic that produces a dose-dependent muscle relaxation. As the depth of anesthesia increases, the muscle relaxation becomes more profound. At lighter planes of anesthesia, the muscle relaxation may not be as pronounced.Rate this question:
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- 18.
As a general rule, it is recommended that all anesthetized animals be intubated in order to maintain the airway
- A.
True
- B.
False
Correct Answer
A. TrueExplanation
Intubation is the process of inserting a tube into the airway to maintain a clear passage for breathing. When animals are under anesthesia, their ability to maintain their own airway can be compromised. Intubation ensures that the airway is protected and allows for controlled ventilation if needed. Therefore, it is recommended to intubate all anesthetized animals to maintain their airway and prevent any potential complications.Rate this question:
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- 19.
Based on the properties of the agent, the inhalation anesthetic that is the best suited and considered ideal for mask induction is:
- A.
Methoxyflurane
- B.
Sevoflurane
- C.
Isoflurane
- D.
Halothane
Correct Answer
B. SevofluraneExplanation
Sevoflurane is considered ideal for mask induction because of its properties. It has a low blood-gas solubility, which means it is rapidly taken up by the lungs and quickly induces anesthesia. It also has a low pungency, which makes it more tolerable for patients to inhale. Additionally, sevoflurane has a minimal metabolism in the body, resulting in fewer potential side effects. These properties make sevoflurane the best suited inhalation anesthetic for mask induction.Rate this question:
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- 20.
The inhalation anesthetic agent with the lowest MAC (minimum alveolar concentration) is:
- A.
Methoxyflurane
- B.
Halothane
- C.
Isoflurane
- D.
Sevoflurane
Correct Answer
A. MethoxyfluraneExplanation
Methoxyflurane has the lowest MAC (minimum alveolar concentration) among the given inhalation anesthetic agents. MAC is a measure of anesthetic potency, indicating the concentration of anesthetic required to prevent movement in response to a surgical stimulus in 50% of patients. A lower MAC value indicates higher potency, meaning that a lower concentration of methoxyflurane is needed to achieve the desired anesthetic effect compared to the other options (halothane, isoflurane, and sevoflurane).Rate this question:
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- 21.
The anesthetic agents with the highest vapor pressure is:
- A.
Methoxyflurane
- B.
Halothane
- C.
Isoflurane
- D.
Sevoflurane
Correct Answer
B. HalothaneExplanation
Halothane has the highest vapor pressure among the given anesthetic agents. Vapor pressure is a measure of how easily a substance evaporates or turns into a gas at a given temperature. A higher vapor pressure indicates that a substance evaporates more readily. Therefore, halothane, with the highest vapor pressure, is the anesthetic agent that evaporates most easily, making it more suitable for inhalation anesthesia.Rate this question:
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- 22.
When inhalation anesthetic agents are compared, the one having the lowest solubility rating will be the one that:
- A.
Is the most potent
- B.
Will allow for the fasted induction of anesthesia
- C.
Will vaporize to the highest concentration in room air
- D.
Can only be used in vaporizers that are inside the breathing circuit
Correct Answer
B. Will allow for the fasted induction of anesthesiaExplanation
The inhalation anesthetic agent with the lowest solubility rating will allow for the fastest induction of anesthesia. This is because low solubility means that the agent will not dissolve easily in the blood, allowing it to rapidly reach the brain and produce anesthesia. Agents with higher solubility would take longer to reach the brain and induce anesthesia.Rate this question:
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Our quizzes are rigorously reviewed, monitored and continuously updated by our expert board to maintain accuracy, relevance, and timeliness.
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Current Version
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Mar 22, 2023Quiz Edited by
ProProfs Editorial Team -
May 01, 2016Quiz Created by
Bknight2
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