Pg Blazer - Online Test Series 33 - Anaesthesia

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  • 1/10 Questions

    Which of the following produces dissociative anaesthesia

    • Ketamine
    • Propofol
    • Thiopentone
    • Enflurane
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About This Quiz

Subject wise MCQ test - Anaesthesia. For more online practice tests, go to PG Blazer Online Test Series

Medical Test Quizzes & Trivia

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  • 2. 

    A 20-year old patient presented with early pregnancy was admitted for Medical Termination of Pregnancy (MTP) in day care facility. What will be the anesthetic induction agent of choice?

    • Thiopentone

    • Ketamine

    • Propofol

    • Diazepam

    Correct Answer
    A. Propofol
    Explanation
    Propofol is the anesthetic induction agent of choice for a 20-year old patient presenting with early pregnancy who is admitted for Medical Termination of Pregnancy (MTP) in a day care facility. Propofol is a short-acting intravenous anesthetic that provides rapid induction and recovery, making it suitable for day care procedures. It has a favorable safety profile for both the mother and the fetus, and it does not have teratogenic effects. Therefore, it is the preferred choice in this scenario.

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  • 3. 

    Which of the following drugs is contraindicated in a patient with raised intracranial pressure?

    • Thiopentone

    • Propofol

    • Midazolarn

    • Ketamine

    Correct Answer
    A. Ketamine
    Explanation
    Ketamine increases cerebral blood flow and intracranial pressure. Hence it is contraindicated in patients with increased intracranial pressure.

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  • 4. 

    Which of the following is not true about Xenon anaesthesia

    • Non explosive

    • Minimal cardiovascular side effects

    • Slow induction and slow recovery

    • Low blood gas solubility

    Correct Answer
    A. Slow induction and slow recovery
    Explanation
    Xenon is very close to being an ideal anaesthetic agent with multiple advantages like:
    Inert
    Non toxic
    Minimal cardiovascular effects
    Low blood solubility
    Fast induction and recovery
    Non explosive
    Does not cause malignant hyperthermia

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  • 5. 

    Which of the following in anaesthesia will produce decreased EEG activities

    • Hypothermia

    • Early hypoxia

    • Ketamine

    • N2O

    Correct Answer
    A. Hypothermia
    Explanation
    Hypothermia is the correct answer because it is known to decrease EEG activities. When the body temperature drops below normal, the brain's electrical activity slows down, resulting in decreased EEG readings. This is often observed during surgical procedures where hypothermia is intentionally induced to reduce metabolic demand and protect the brain from potential damage. On the other hand, early hypoxia, ketamine, and N2O may have different effects on EEG activities, but they do not directly cause decreased EEG activities as hypothermia does.

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  • 6. 

    Which of the following is the neuromuscular blocking agent with the shortest onset of action?

    • Mivacurium

    • Vecuronium

    • Rapacuronium

    • Succinylcholine

    Correct Answer
    A. Succinylcholine
    Explanation
    Succinylcholine is the neuromuscular blocking agent with the shortest onset of action. It is a depolarizing muscle relaxant that acts by binding to the nicotinic acetylcholine receptors at the neuromuscular junction, causing sustained depolarization and preventing muscle contraction. Succinylcholine has a rapid onset of action, typically within 30 to 60 seconds, making it useful for rapid sequence intubation or emergency procedures. Its effects are short-lived, with a duration of action of about 5 to 10 minutes, due to rapid metabolism by plasma cholinesterase.

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  • 7. 

    Which of the following fluorinated anesthetics corrodes metal in vaporizers and breathing systems?

    • Sevoflurane

    • Enflurane

    • Lsoflurane

    • Halothane

    Correct Answer
    A. Halothane
    Explanation
    Halothane is the correct answer because it is a fluorinated anesthetic that is known to corrode metal in vaporizers and breathing systems. This corrosion can lead to malfunctioning of the equipment and potential harm to the patient. Sevoflurane, enflurane, and isoflurane are also fluorinated anesthetics, but they do not have the same corrosive effect on metal as halothane does.

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  • 8. 

    The following anaesthetic drug causes pain on intravenous adminstration:

    • Midazolam

    • Propofol

    • Ketamine

    • Thiopentone sodium

    Correct Answer
    A. Propofol
    Explanation
    Inadvertent intra arterial injection of thiopentone sodium produces pain, not intravenous injection. Propofol causes pain with intravenous injection.

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  • 9. 

    Which of the following ihalational agents has the minimum blood gas solubility coefficient?

    • Isoflurane

    • Sevoflurane

    • Desflurane

    • Nitrous oxide

    Correct Answer
    A. Desflurane
    Explanation
    Desflurane has the minimum blood gas solubility coefficient among the given inhalational agents. Blood gas solubility coefficient refers to the ability of an anesthetic agent to dissolve in blood. A lower blood gas solubility coefficient indicates that the agent is less soluble in blood, allowing for faster induction and recovery from anesthesia. Desflurane has a lower blood gas solubility coefficient compared to isoflurane and sevoflurane, making it a preferred choice for inhalational anesthesia. Nitrous oxide, although not mentioned in the question, has a very low blood gas solubility coefficient, even lower than desflurane, making it the least soluble among the options.

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  • 10. 

    In general, the last muscle to be rendered akinetic with a retrobulbar anesthetic block is:

    • Superior rectus

    • Superior oblique

    • Inferior oblique

    • Levator palpebral superioris

    Correct Answer
    A. Superior oblique
    Explanation
    The superior oblique muscle is the last muscle to be rendered akinetic with a retrobulbar anesthetic block. This means that it is the last muscle to become paralyzed or immobilized when the block is administered.

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  • Mar 21, 2023
    Quiz Edited by
    ProProfs Editorial Team
  • Sep 20, 2011
    Quiz Created by
    Pgblazer
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