intravenous ppt
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Questions and Answers

Which drug is associated with a significant decrease in intraocular pressure?

  • Etomidate
  • Lidocaine
  • Thiopental
  • Propofol (correct)
  • Which drug is NOT known to affect hepatic or renal function?

  • Thiopental (correct)
  • Etomidate
  • Lidocaine
  • Propofol
  • Which drug is associated with a high incidence of pain on injection?

  • Lidocaine
  • Propofol (correct)
  • Etomidate
  • Thiopental
  • Which drug is a selective modulator of GABAA receptors?

    <p>Propofol</p> Signup and view all the answers

    Which drug is chemically unrelated to any other drug used for IV induction?

    <p>Etomidate</p> Signup and view all the answers

    What is the chemical structure of propofol?

    <p>2,6-diisopropyl phenol</p> Signup and view all the answers

    Which of the following best describes a sedative?

    <p>A drug that induces a state of calm or sleep</p> Signup and view all the answers

    Why is mixing propofol with lidocaine not recommended?

    <p>It may result in droplets that pose a risk of pulmonary embolism</p> Signup and view all the answers

    Which of the following is an alternative to propofol?

    <p>Aquavan &amp; fospropofol: prodrug</p> Signup and view all the answers

    What is the mechanism of action of propofol?

    <p>Selective modulator of GABAA receptors</p> Signup and view all the answers

    Which factor determines the differences in onset and duration among benzodiazepines?

    <p>Pharmacokinetics (uptake, distribution, metabolism and elimination)</p> Signup and view all the answers

    Which of the following drugs can exert synergistic sedative effects with benzodiazepines?

    <p>Alcohol</p> Signup and view all the answers

    Which of the following symptoms may occur after more than 6 months of use of low-potency benzodiazepines?

    <p>All of the above</p> Signup and view all the answers

    Which of the following benzodiazepines is preferred in elderly patients?

    <p>Temazepam</p> Signup and view all the answers

    Which of the following factors contribute to the water solubility of midazolam?

    <p>Buffering to pH 3.5</p> Signup and view all the answers

    Which of the following is true about the administration of Diazepam for sedation during regional and brief therapeutic procedures?

    <p>It is recommended to be given up to 10 minutes before surgery.</p> Signup and view all the answers

    What is the protein binding characteristic of Diazepam?

    <p>It has a high degree of protein binding.</p> Signup and view all the answers

    How is Diazepam metabolized in the body?

    <p>It is metabolized by hepatic microsomal enzymes.</p> Signup and view all the answers

    What is the elimination half-time of Diazepam in healthy volunteers?

    <p>Between 20 and 30 hours</p> Signup and view all the answers

    How does the elimination half-time of Diazepam change with age?

    <p>It increases with age.</p> Signup and view all the answers

    Which of the following is a characteristic of etomidate metabolism?

    <p>It is metabolized by hepatic microsomal enzymes and plasma esterases.</p> Signup and view all the answers

    Which of the following is a side effect of etomidate on the cardiovascular system?

    <p>Minimal changes in heart rate, stroke volume, and cardiac output.</p> Signup and view all the answers

    What is the principal limiting aspect of etomidate's clinical usefulness?

    <p>Its ability to suppress adrenocortical function.</p> Signup and view all the answers

    Which of the following is a characteristic of etomidate's effects on ventilation?

    <p>Stimulates ventilation independent of medullary centers.</p> Signup and view all the answers

    What is a principal pharmacologic effect of benzodiazepines?

    <p>Anticonvulsant effects.</p> Signup and view all the answers

    Which of the following is NOT a clinical use of propofol?

    <p>Treatment of bronchoconstriction</p> Signup and view all the answers

    Propofol administration can result in a decrease in which of the following?

    <p>Systemic blood pressure</p> Signup and view all the answers

    What is the recommended dose of propofol for induction of anesthesia in children?

    <p>1.5 to 2.5 mg/kg IV</p> Signup and view all the answers

    How does propofol affect cerebral metabolic rate for oxygen (CMRO2)?

    <p>Decreases CMRO2</p> Signup and view all the answers

    What effect does propofol have on the cardiovascular system?

    <p>Decreases systemic blood pressure</p> Signup and view all the answers

    Which drug is associated with a high incidence of pain on injection?

    <p>Propofol</p> Signup and view all the answers

    Which drug is NOT known to affect hepatic or renal function?

    <p>Propofol</p> Signup and view all the answers

    Which of the following drugs can potentiate respiratory depression when combined with opioids?

    <p>Propofol</p> Signup and view all the answers

    Which drug is a selective modulator of GABAA receptors?

    <p>Propofol</p> Signup and view all the answers

    Which drug is associated with a significant decrease in intraocular pressure?

    <p>Propofol</p> Signup and view all the answers

    Which of the following drugs induces hypnosis or sleep?

    <p>Hypnotic</p> Signup and view all the answers

    What is the chemical structure of propofol?

    <p>2,6-diisopropyl phenol</p> Signup and view all the answers

    Which of the following drugs is a low-lipid emulsion that does not require preservative but has higher pain on injection?

    <p>Ampofol</p> Signup and view all the answers

    What is the mechanism of action of propofol?

    <p>Selective modulator of GABAA receptors</p> Signup and view all the answers

    Why is mixing propofol with lidocaine not recommended?

    <p>Risk of pulmonary embolism</p> Signup and view all the answers

    Which of the following is a characteristic of Diazepam's protein binding?

    <p>It is highly lipid-soluble</p> Signup and view all the answers

    What is the onset time for intravenous sedation with Diazepam?

    <p>30 - 60 seconds</p> Signup and view all the answers

    What is the recommended timing for administration of Diazepam before surgery?

    <p>20 minutes</p> Signup and view all the answers

    What is the elimination half-time of Diazepam in healthy volunteers?

    <p>21 - 37 hours</p> Signup and view all the answers

    How is Diazepam metabolized in the body?

    <p>By hepatic microsomal enzymes</p> Signup and view all the answers

    Which of the following factors contributes to the differences in onset and duration among benzodiazepines?

    <p>Pharmacokinetics (uptake, distribution, metabolism and elimination)</p> Signup and view all the answers

    Which of the following symptoms may occur after more than 6 months of use of low-potency benzodiazepines?

    <p>All of the above</p> Signup and view all the answers

    Which of the following drugs can exert synergistic sedative effects with benzodiazepines?

    <p>Opioids</p> Signup and view all the answers

    What is the preferred benzodiazepine in elderly patients?

    <p>Lorazepam</p> Signup and view all the answers

    What is the principal pharmacologic effect of benzodiazepines on the cardiovascular system?

    <p>Anticonvulsant</p> Signup and view all the answers

    Which of the following is the equation of a line in slope-intercept form?

    <p>$y = mx + b$</p> Signup and view all the answers

    Which of the following is the quadratic formula?

    <p>$x = \frac{-b \pm \sqrt{b^2 - 4ac}}{2a}$</p> Signup and view all the answers

    What is the value of $\sin(90°)$?

    <p>1</p> Signup and view all the answers

    What is the derivative of $f(x) = 3x^2 - 2x + 1$?

    <p>$f'(x) = 6x - 2$</p> Signup and view all the answers

    What is the value of $\log_{10}(1000)$?

    <p>3</p> Signup and view all the answers

    Which of the following is a characteristic of etomidate metabolism?

    <p>Etomidate is metabolized by hepatic microsomal enzymes and plasma esterases.</p> Signup and view all the answers

    What is the principal limiting aspect of etomidate's clinical usefulness?

    <p>Etomidate can cause adrenocortical suppression.</p> Signup and view all the answers

    Which of the following is a side effect of etomidate on the cardiovascular system?

    <p>Etomidate causes a decrease in blood pressure.</p> Signup and view all the answers

    How does propofol affect cerebral metabolic rate for oxygen (CMRO2)?

    <p>Propofol decreases CMRO2.</p> Signup and view all the answers

    How does the elimination half-time of Diazepam change with age?

    <p>The elimination half-time of Diazepam increases with age.</p> Signup and view all the answers

    Which drug is associated with a higher incidence of pain on injection?

    <p>Propofol</p> Signup and view all the answers

    Which drug is NOT known to affect hepatic or renal function?

    <p>Thiopental</p> Signup and view all the answers

    What is the principal pharmacologic effect of propofol on the cardiovascular system?

    <p>Bradycardia</p> Signup and view all the answers

    What is the chemical structure of propofol?

    <p>Phenyl nucleus and diisopropyl side chain</p> Signup and view all the answers

    What is the mechanism of action of propofol?

    <p>Selective modulator of GABAA receptors</p> Signup and view all the answers

    Which of the following equations represents a line with a slope of 2 and a y-intercept of -3?

    <p>$y = 2x - 3$</p> Signup and view all the answers

    What is the value of x in the equation $3x + 7 = 22$?

    <p>$x = 5$</p> Signup and view all the answers

    What is the area of a rectangle with length 6 units and width 4 units?

    <p>$24$ square units</p> Signup and view all the answers

    What is the value of $(-2)^3$?

    <p>$-8$</p> Signup and view all the answers

    What is the solution to the equation $2x + 5 = 3x - 1$?

    <p>$x = 6$</p> Signup and view all the answers

    Which of the following is true about the protein binding characteristic of Diazepam?

    <p>Diazepam has a high degree of protein binding</p> Signup and view all the answers

    What is the elimination half-time of Diazepam in healthy volunteers?

    <p>21 to 37 hours</p> Signup and view all the answers

    Which of the following drugs is recommended for sedation during regional as well as brief therapeutic procedures?

    <p>Diazepam</p> Signup and view all the answers

    What is the recommended timing for administration of Diazepam before surgery?

    <p>20 minutes before surgery</p> Signup and view all the answers

    What is the commercial preparation of Diazepam?

    <p>Dissolved in organic solvents</p> Signup and view all the answers

    Which of the following factors contribute to the differences in onset and duration among benzodiazepines?

    <p>Pharmacokinetics (uptake, distribution, metabolism and elimination)</p> Signup and view all the answers

    Which of the following drugs can potentiate the ventilatory depressant effects of opioids?

    <p>Opioids</p> Signup and view all the answers

    Which of the following drugs is capable of producing an isoelectric EEG?

    <p>Midazolam</p> Signup and view all the answers

    Which of the following drugs is preferred in elderly patients due to its metabolism by glucuronidation?

    <p>Lorazepam</p> Signup and view all the answers

    Which of the following drugs has a short duration of action due to redistribution and rapid hepatic clearance?

    <p>Midazolam</p> Signup and view all the answers

    Which of the following is a characteristic of propofol's mechanism of action?

    <p>It selectively modulates GABAA receptors.</p> Signup and view all the answers

    Which of the following is a characteristic of propofol administration?

    <p>It can result in a decrease in cerebral metabolic rate for oxygen (CMRO2).</p> Signup and view all the answers

    Which of the following is NOT a characteristic of propofol alternatives?

    <p>They are prodrugs.</p> Signup and view all the answers

    Which of the following is a characteristic of propofol's chemical structure?

    <p>It is a non-lipid formulation.</p> Signup and view all the answers

    Which of the following is a characteristic of propofol's administration medium?

    <p>It maintains isotonicity with blood.</p> Signup and view all the answers

    Which of the following is a characteristic of etomidate's metabolism?

    <p>Metabolized by hydrolysis of the ethyl ester side chain</p> Signup and view all the answers

    Which of the following is a side effect of etomidate on the cardiovascular system?

    <p>Minimal changes in heart rate and cardiac output</p> Signup and view all the answers

    Which of the following is a side effect of etomidate on ventilation?

    <p>Stimulates ventilation independent of medullary centers</p> Signup and view all the answers

    Which of the following is a characteristic of etomidate's adrenocortical suppression?

    <p>Lasts for 4 to 8 hours after an induction dose</p> Signup and view all the answers

    Which of the following is NOT a principal pharmacologic effect of benzodiazepines?

    <p>Muscle relaxation</p> Signup and view all the answers

    Propofol has a longer half-life in elderly patients compared to children

    <p>False</p> Signup and view all the answers

    Propofol is primarily metabolized by hepatic oxidative metabolism

    <p>True</p> Signup and view all the answers

    Propofol is commonly used for intravenous sedation

    <p>True</p> Signup and view all the answers

    Propofol can attenuate bronchoconstriction in asthmatic patients

    <p>True</p> Signup and view all the answers

    Propofol increases cerebral blood flow

    <p>False</p> Signup and view all the answers

    Propofol is associated with significant decrease in intraocular pressure.

    <p>True</p> Signup and view all the answers

    Propofol does not affect hepatic or renal function.

    <p>True</p> Signup and view all the answers

    Bradycardia is a potential side effect of propofol.

    <p>True</p> Signup and view all the answers

    Propofol is chemically unrelated to any other drug used for IV induction.

    <p>True</p> Signup and view all the answers

    Propofol has potent antioxidant properties.

    <p>True</p> Signup and view all the answers

    Etomidate is rapidly metabolized by hydrolysis of the ethyl ester side chain to its carboxylic acid ester

    <p>True</p> Signup and view all the answers

    Etomidate is highly protein bound to albumin

    <p>False</p> Signup and view all the answers

    Etomidate is known to produce analgesia

    <p>False</p> Signup and view all the answers

    Etomidate is associated with adrenocortical suppression

    <p>True</p> Signup and view all the answers

    Etomidate has minimal effects on cardiovascular stability

    <p>True</p> Signup and view all the answers

    Diazepam is commonly used as part of the anesthesia care plan.

    <p>False</p> Signup and view all the answers

    Diazepam is highly protein-bound.

    <p>True</p> Signup and view all the answers

    Diazepam is dissolved in water.

    <p>False</p> Signup and view all the answers

    Diazepam has a rapid absorption from the GI tract.

    <p>True</p> Signup and view all the answers

    The elimination half-time of Diazepam is shorter than lorazepam.

    <p>False</p> Signup and view all the answers

    Propofol is a sedative-hypnotic drug.

    <p>True</p> Signup and view all the answers

    Anxiolytics are drugs that induce hypnosis or sleep.

    <p>False</p> Signup and view all the answers

    Propofol is administered intravenously.

    <p>True</p> Signup and view all the answers

    Mixing propofol with lidocaine is not recommended.

    <p>True</p> Signup and view all the answers

    Propofol is a non-lipid formulation.

    <p>False</p> Signup and view all the answers

    True or false: Benzodiazepines have a built-in ceiling effect that prevents them from exceeding the physiologic maximum of GABA inhibition.

    <p>True</p> Signup and view all the answers

    True or false: Differences in onset and duration among benzodiazepines reflect differences in potency, lipid solubility, and pharmacokinetics.

    <p>True</p> Signup and view all the answers

    True or false: Benzodiazepines decrease adenosine degradation, which can lead to a reduction in cardiac oxygen demand.

    <p>True</p> Signup and view all the answers

    True or false: Benzodiazepines exert synergistic sedative effects with alcohol, inhaled anesthetics, opioids, and α2 agonists.

    <p>True</p> Signup and view all the answers

    True or false: Benzodiazepines can accelerate cognitive decline in elderly patients.

    <p>True</p> Signup and view all the answers

    Study Notes

    Anesthesia and Sedation

    • Etomidate is associated with a significant decrease in intraocular pressure.
    • Propofol is a selective modulator of GABAA receptors.
    • Etomidate is chemically unrelated to any other drug used for IV induction.
    • Propofol has a chemical structure that is a 2,6-diisopropylphenol.
    • A sedative is a drug that reduces anxiety, stress, and excitement, but does not induce sleep.

    Propofol

    • Propofol is associated with a high incidence of pain on injection.
    • Propofol is not known to affect hepatic or renal function.
    • Propofol can induce hypnosis or sleep.
    • The mechanism of action of propofol is through modulation of GABAA receptors.
    • Mixing propofol with lidocaine is not recommended due to increased pain on injection.
    • Ketamine is an alternative to propofol.
    • Propofol administration can result in a decrease in systemic vascular resistance.
    • The recommended dose of propofol for induction of anesthesia in children is 2.5-3.5 mg/kg.
    • Propofol decreases cerebral metabolic rate for oxygen (CMRO2).
    • Propofol has a negative inotropic effect on the cardiovascular system.

    Diazepam

    • Diazepam is a benzodiazepine that can exert synergistic sedative effects with opioids.
    • Diazepam is preferred in elderly patients due to its metabolism by glucuronidation.
    • The protein binding characteristic of Diazepam is 99%.
    • The onset time for intravenous sedation with Diazepam is 1-2 minutes.
    • The recommended timing for administration of Diazepam before surgery is 10-15 minutes.
    • The elimination half-time of Diazepam in healthy volunteers is 20-30 hours.
    • Diazepam is metabolized in the body through glucuronidation.
    • The commercial preparation of Diazepam is Valium.

    Etomidate

    • Etomidate is associated with a high incidence of pain on injection.
    • Etomidate is not known to affect hepatic or renal function.
    • Etomidate has a characteristic of adrenocortical suppression.
    • The principal limiting aspect of etomidate's clinical usefulness is adrenocortical suppression.
    • Etomidate has a side effect on the cardiovascular system, causing hypertension.
    • Etomidate has a side effect on ventilation, causing respiratory depression.
    • Etomidate's metabolism is primarily through ester hydrolysis.

    Benzodiazepines

    • The principal pharmacologic effect of benzodiazepines is anxiolysis.
    • The principal pharmacologic effect of benzodiazepines on the cardiovascular system is a decrease in systemic vascular resistance.
    • The factor that contributes to the differences in onset and duration among benzodiazepines is lipid solubility.
    • The symptoms that may occur after more than 6 months of use of low-potency benzodiazepines include rebound anxiety and insomnia.

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    Description

    Test your knowledge on the pharmacokinetics of Etomidate. Learn about its unionization, protein binding, metabolism, and more. Find out how this drug is rapidly metabolized and its effects on the body.

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