A nonvolatile, highly lipid soluble drug is metabolized at a rate of 15% per hour. On intravenous injection it produces general anaesthesia for 10 min. Which process is responsible for termination of its action: A. Metabolism in liver B. Plasma protein binding C. Excretion by kidney D. Redistribution

A nonvolatile, highly lipid soluble drug is metabolized at a rate of 15% per hour. On intravenous injection it produces general anaesthesia for 10 min. Which process is responsible for termination of its action: A. Metabolism in liver B. Plasma protein binding C. Excretion by kidney D. Redistribution
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D. Redistribution
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A nonvolatile, highly lipid soluble drug is metabolized at a rate of 15% per hour. On intravenous injection it produces general anaesthesia for 10 min. Which process is responsible for termination of its action: A. Metabolism in liver B. Plasma protein binding C. Excretion by kidney D. Redistribution

Description : A nonvolatile, highly lipid soluble drug is metabolized at a rate of 15% per hour. On intravenous injection it produces general anaesthesia for 10 min. Which process is responsible for termination of ... : A. Metabolism in liver B. Plasma protein binding C. Excretion by kidney D. Redistribution

Last Answer : D. Redistribution

5 A nonvolatile, highly lipid soluble drug is metabolized at a rate of 15% per hour. On intravenous injection it produces general anaesthesia for 10 min. Which process is responsible for termination of its action: A. Metabolism in liver B. Plasma protein binding C. Excretion by kidney D. Redistribution

Description : 5 A nonvolatile, highly lipid soluble drug is metabolized at a rate of 15% per hour. On intravenous injection it produces general anaesthesia for 10 min. Which process is responsible for termination ... : A. Metabolism in liver B. Plasma protein binding C. Excretion by kidney D. Redistribution

Last Answer : D. Redistribution

Marked redistribution is a feature of: A. Highly lipid soluble drugs B. Poorly lipid soluble drugs C. Depot preparations D. Highly plasma protein bound drugs

Description : Marked redistribution is a feature of: A. Highly lipid soluble drugs B. Poorly lipid soluble drugs C. Depot preparations D. Highly plasma protein bound drugs

Last Answer : A. Highly lipid soluble drugs

Marked redistribution is a feature of: A. Highly lipid soluble drugs B. Poorly lipid soluble drugs C. Depot preparations D. Highly plasma protein bound drugs

Description : Marked redistribution is a feature of: A. Highly lipid soluble drugs B. Poorly lipid soluble drugs C. Depot preparations D. Highly plasma protein bound drugs

Last Answer : A. Highly lipid soluble drugs

Marked redistribution is a feature of: A. Highly lipid soluble drugs B. Poorly lipid soluble drugs C. Depot preparations D. Highly plasma protein bound drugs

Description : Marked redistribution is a feature of: A. Highly lipid soluble drugs B. Poorly lipid soluble drugs C. Depot preparations D. Highly plasma protein bound drugs

Last Answer : A. Highly lipid soluble drugs

Glomerular filtration of a drug is affected by its: A. Lipid solubility B. Plasma protein binding C. Degree of ionization D. Rate of tubular secretion

Description : Glomerular filtration of a drug is affected by its: A. Lipid solubility B. Plasma protein binding C. Degree of ionization D. Rate of tubular secretion

Last Answer : B. Plasma protein binding

If a drug has a constant bioavailability and first order elimination, its maintenance dose rate will be directly proportional to its: A. Volume of distribution B. Plasma protein binding C. Lipid solubility D. Total body clearance

Description : If a drug has a constant bioavailability and first order elimination, its maintenance dose rate will be directly proportional to its: A. Volume of distribution B. Plasma protein binding C. Lipid solubility D. Total body clearance

Last Answer : D. Total body clearanc

Glomerular filtration of a drug is affected by its: A. Lipid solubility B. Plasma protein binding C. Degree of ionization D. Rate of tubular secretion

Description : Glomerular filtration of a drug is affected by its: A. Lipid solubility B. Plasma protein binding C. Degree of ionization D. Rate of tubular secretion

Last Answer : B. Plasma protein binding

The following attribute of a drug tends to reduce its volume of distribution: A. High lipid solubility B. Low ionisation at physiological pH values C. High plasma protein binding D. High tissue binding

Description : The following attribute of a drug tends to reduce its volume of distribution: A. High lipid solubility B. Low ionisation at physiological pH values C. High plasma protein binding D. High tissue binding

Last Answer : C. High plasma protein binding

The following attribute of a drug tends to reduce its volume of distribution: A. High lipid solubility B. Low ionisation at physiological pH values C. High plasma protein binding D. High tissue binding

Description : The following attribute of a drug tends to reduce its volume of distribution: A. High lipid solubility B. Low ionisation at physiological pH values C. High plasma protein binding D. High tissue binding

Last Answer : C. High plasma protein binding

The following attribute of a drug tends to reduce its volume of distribution: A. High lipid solubility B. Low ionisation at physiological pH values C. High plasma protein binding D. High tissue binding

Description : The following attribute of a drug tends to reduce its volume of distribution: A. High lipid solubility B. Low ionisation at physiological pH values C. High plasma protein binding D. High tissue binding

Last Answer : C. High plasma protein binding

The plasma protein bound fraction of a drug: A. Contributes to the response at the given moment B. Remains constant irrespective of the total drug concentration C. Remains constant irrespective of the disease state D. Is not available for metabolism unless actively extracted by the liver

Description : The plasma protein bound fraction of a drug: A. Contributes to the response at the given moment B. Remains constant irrespective of the total drug concentration C. Remains constant irrespective of the disease state D. Is not available for metabolism unless actively extracted by the liver

Last Answer : D. Is not available for metabolism unless actively extracted by the liver

The plasma protein bound fraction of a drug: A. Contributes to the response at the given moment B. Remains constant irrespective of the total drug concentration C. Remains constant irrespective of the disease state D. Is not available for metabolism unless actively extracted by the liver

Description : The plasma protein bound fraction of a drug: A. Contributes to the response at the given moment B. Remains constant irrespective of the total drug concentration C. Remains constant irrespective of the disease state D. Is not available for metabolism unless actively extracted by the liver

Last Answer : D. Is not available for metabolism unless actively extracted by the liver

The plasma protein bound fraction of a drug: A. Contributes to the response at the given moment B. Remains constant irrespective of the total drug concentration C. Remains constant irrespective of the disease state D. Is not available for metabolism unless actively extracted by the liver

Description : The plasma protein bound fraction of a drug: A. Contributes to the response at the given moment B. Remains constant irrespective of the total drug concentration C. Remains constant irrespective of the disease state D. Is not available for metabolism unless actively extracted by the liver

Last Answer : D. Is not available for metabolism unless actively extracted by the liver

In an anaesthetized dog, repeated intravenous injection of ephedrine shows the phenomenon of: A. Anaphylaxis B. Tachyphylaxis C. Idiosyncrasy D. Drug resistance

Description : In an anaesthetized dog, repeated intravenous injection of ephedrine shows the phenomenon of: A. Anaphylaxis B. Tachyphylaxis C. Idiosyncrasy D. Drug resistance

Last Answer : B. Tachyphylaxis

Which of the following is not true of the blood-brain barrier: A. It is constituted by tight junctions between the endothelial cells of brain capillaries and the glial tissue B. It allows passage of lipid soluble drugs into the brain C. It limits entry of highly ionized drugs into the brain D. It regulates passage of substances from brain into blood

Description : Which of the following is not true of the blood-brain barrier: A. It is constituted by tight junctions between the endothelial cells of brain capillaries and the glial tissue B. It allows passage ... of highly ionized drugs into the brain D. It regulates passage of substances from brain into blood

Last Answer : D. It regulates passage of substances from brain into blood

Which of the following is not true of the blood-brain barrier: A. It is constituted by tight junctions between the endothelial cells of brain capillaries and the glial tissue B. It allows passage of lipid soluble drugs into the brain C. It limits entry of highly ionized drugs into the brain D. It regulates passage of substances from brain into blood

Description : Which of the following is not true of the blood-brain barrier: A. It is constituted by tight junctions between the endothelial cells of brain capillaries and the glial tissue B. It allows passage ... of highly ionized drugs into the brain D. It regulates passage of substances from brain into blood

Last Answer : D. It regulates passage of substances from brain into blood

High plasma protein binding: A. Increases volume of distribution of the drug B. Facilitates glomerular filtration of the drug C. Minimises drug interactions D. Generally makes the drug long acting

Description : High plasma protein binding: A. Increases volume of distribution of the drug B. Facilitates glomerular filtration of the drug C. Minimises drug interactions D. Generally makes the drug long acting

Last Answer : D. Generally makes the drug long acting

High plasma protein binding: A. Increases volume of distribution of the drug B. Facilitates glomerular filtration of the drug C. Minimises drug interactions D. Generally makes the drug long acting

Description : High plasma protein binding: A. Increases volume of distribution of the drug B. Facilitates glomerular filtration of the drug C. Minimises drug interactions D. Generally makes the drug long acting

Last Answer : D. Generally makes the drug long acting

High plasma protein binding: A. Increases volume of distribution of the drug B. Facilitates glomerular filtration of the drug C. Minimises drug interactions D. Generally makes the drug long acting

Description : High plasma protein binding: A. Increases volume of distribution of the drug B. Facilitates glomerular filtration of the drug C. Minimises drug interactions D. Generally makes the drug long acting

Last Answer : D. Generally makes the drug long acting

Biotransformation of drugs is primarily directed to: A. Activate the drug B. Inactivate the drug C. Convert lipid soluble drugs into nonlipid soluble metabolites D. Convert nonlipid soluble drugs into lipid soluble metabolites

Description : Biotransformation of drugs is primarily directed to: A. Activate the drug B. Inactivate the drug C. Convert lipid soluble drugs into nonlipid soluble metabolites D. Convert nonlipid soluble drugs into lipid soluble metabolites

Last Answer : C. Convert lipid soluble drugs into nonlipid soluble metabolites

Biotransformation of drugs is primarily directed to: A. Activate the drug B. Inactivate the drug C. Convert lipid soluble drugs into nonlipid soluble metabolites D. Convert nonlipid soluble drugs into lipid soluble metabolites

Description : Biotransformation of drugs is primarily directed to: A. Activate the drug B. Inactivate the drug C. Convert lipid soluble drugs into nonlipid soluble metabolites D. Convert nonlipid soluble drugs into lipid soluble metabolites

Last Answer : C. Convert lipid soluble drugs into nonlipid soluble metabolites

Bioavailability differences among oral formulations of a drug are most likely to occur if the drug: A. Is freely water soluble B. Is completely absorbed C. Is incompletely absorbed D. Undergoes little first-pass metabolism

Description : Bioavailability differences among oral formulations of a drug are most likely to occur if the drug: A. Is freely water soluble B. Is completely absorbed C. Is incompletely absorbed D. Undergoes little first-pass metabolism

Last Answer : C. Is incompletely absorbed

Bioavailability differences among oral formulations of a drug are most likely to occur if the drug: A. Is freely water soluble B. Is completely absorbed C. Is incompletely absorbed D. Undergoes little first-pass metabolism

Description : Bioavailability differences among oral formulations of a drug are most likely to occur if the drug: A. Is freely water soluble B. Is completely absorbed C. Is incompletely absorbed D. Undergoes little first-pass metabolism

Last Answer : C. Is incompletely absorbed

If a drug has a constant bioavailability and first order elimination, its maintenance dose rate will be directly proportional to its: A. Volume of distribution B. Plasma protein binding C. Lipid solubility D. Total body clearance

Description : If a drug has a constant bioavailability and first order elimination, its maintenance dose rate will be directly proportional to its: A. Volume of distribution B. Plasma protein binding C. Lipid solubility D. Total body clearance

Last Answer : D. Total body clearance

Select the route of administration which carries the highest risk of adversely affecting vital functions: A. Intra arterial injection B. Intrathecal injection C. Intravenous injection D. Intramuscular injection

Description : Select the route of administration which carries the highest risk of adversely affecting vital functions: A. Intra arterial injection B. Intrathecal injection C. Intravenous injection D. Intramuscular injection

Last Answer : C. Intravenous injection

Select the route of administration which carries the highest risk of adversely affecting vital functions: A. Intra arterial injection B. Intrathecal injection C. Intravenous injection D. Intramuscular injection

Description : Select the route of administration which carries the highest risk of adversely affecting vital functions: A. Intra arterial injection B. Intrathecal injection C. Intravenous injection D. Intramuscular injection

Last Answer : C. Intravenous injection

The anticholinesterase action of edrophonium is short lasting because termination of its action depends on: A. Dissociation and diffusion of the drug from the enzyme B. Hydrolysis of the drug by the enzyme C. Synthesis of fresh enzyme molecules D. A combination of the above three processes

Description : The anticholinesterase action of edrophonium is short lasting because termination of its action depends on: A. Dissociation and diffusion of the drug from the enzyme B. Hydrolysis of the drug by the enzyme C. Synthesis of fresh enzyme molecules D. A combination of the above three processes

Last Answer : A. Dissociation and diffusion of the drug from the enzyme

Which of the following processes plays the major role in terminating the action of phenobarbitone: A. Biliary excretion B. Renal excretion C. Hepatic metabolism D. Redistribution

Description : Which of the following processes plays the major role in terminating the action of phenobarbitone: A. Biliary excretion B. Renal excretion C. Hepatic metabolism D. Redistribution

Last Answer : B. Renal excretion

Transdermal drug delivery systems offer the following advantages except: A. They produce high peak plasma concentration of the drug B. They produce smooth and nonfluctuating plasma concentration of the drug C. They minimise interindividual variations in the achieved plasma drug concentration D. They avoid hepatic first-pass metabolism of the drug

Description : Transdermal drug delivery systems offer the following advantages except: A. They produce high peak plasma concentration of the drug B. They produce smooth and nonfluctuating plasma concentration of the ... the achieved plasma drug concentration D. They avoid hepatic first-pass metabolism of the drug

Last Answer : A. They produce high peak plasma concentration of the drug

Transdermal drug delivery systems offer the following advantages except: A. They produce high peak plasma concentration of the drug B. They produce smooth and nonfluctuating plasma concentration of the drug C. They minimise interindividual variations in the achieved plasma drug concentration D. They avoid hepatic first-pass metabolism of the drug

Description : Transdermal drug delivery systems offer the following advantages except: A. They produce high peak plasma concentration of the drug B. They produce smooth and nonfluctuating plasma concentration of the ... the achieved plasma drug concentration D. They avoid hepatic first-pass metabolism of the drug

Last Answer : A

The following statement is not correct for uremic patients: A. Attainment of steady-state plasma concentration of drugs eliminated through the kidney is hastened B. Pethidine can cause seizures C. Diazepam produces exaggerated CNS depression D. Tetracyclines further raise blood urea level

Description : The following statement is not correct for uremic patients: A. Attainment of steady-state plasma concentration of drugs eliminated through the kidney is hastened B. Pethidine can cause seizures C. Diazepam produces exaggerated CNS depression D. Tetracyclines further raise blood urea level

Last Answer : A. Attainment of steady-state plasma concentration of drugs eliminated through the kidney is hastened

The following statement is not correct for uremic patients: A. Attainment of steady-state plasma concentration of drugs eliminated through the kidney is hastened B. Pethidine can cause seizures C. Diazepam produces exaggerated CNS depression D. Tetracyclines further raise blood urea level

Description : The following statement is not correct for uremic patients: A. Attainment of steady-state plasma concentration of drugs eliminated through the kidney is hastened B. Pethidine can cause seizures C. Diazepam produces exaggerated CNS depression D. Tetracyclines further raise blood urea level

Last Answer : A. Attainment of steady-state plasma concentration of drugs eliminated through the kidney is hastened

The plasma half life of penicillin-G is longer in the new born because their: A. Plasma protein level is low B. Drug metabolizing enzymes are immature C. Glomerular filtration rate is low D. Tubular transport mechanisms are not well developed

Description : The plasma half life of penicillin-G is longer in the new born because their: A. Plasma protein level is low B. Drug metabolizing enzymes are immature C. Glomerular filtration rate is low D. Tubular transport mechanisms are not well developed

Last Answer : D. Tubular transport mechanisms are not well developed

Select the drug that undergoes extensive first-pass metabolism in the liver: A. Phenobarbitone B. Propranolol C. Phenylbutazone D. Theophylline

Description : Select the drug that undergoes extensive first-pass metabolism in the liver: A. Phenobarbitone B. Propranolol C. Phenylbutazone D. Theophylline

Last Answer : B. Propranolol

Select the drug that undergoes extensive first-pass metabolism in the liver: A. Phenobarbitone B. Propranolol C. Phenylbutazone D. Theophylline

Description : Select the drug that undergoes extensive first-pass metabolism in the liver: A. Phenobarbitone B. Propranolol C. Phenylbutazone D. Theophylline

Last Answer : B. Propranolol

Out of two anticholinesterases, drug ‘X’ is a tertiary amine while drug ‘Y’ is a quarternary ammonium compound. Then: A. Drug ‘X’ is likely to be more potent than ‘Y’ B. Drug ‘X’ will be more suitable to be used as a miotic C. Drug ‘Y’ will be completely metabolized in the body D. Drug ‘Y’ will produce CNS effects

Description : Out of two anticholinesterases, drug X' is a tertiary amine while drug Y' is a quarternary ammonium compound. Then: A. Drug X' is likely to be more potent than Y' B. Drug X' will be more ... a miotic C. Drug Y' will be completely metabolized in the body D. Drug Y' will produce CNS effects

Last Answer : B. Drug ‘X’ will be more suitable to be used as a miotic

Induction of drug metabolizing enzymes involves: A. A conformational change in the enzyme protein to favour binding of substrate molecules B. Expression of enzyme molecules on the surface of hepatocytes C. Enhanced transport of substrate molecules into hepatocytes D. Increased synthesis of enzyme protein

Description : Induction of drug metabolizing enzymes involves: A. A conformational change in the enzyme protein to favour binding of substrate molecules B. Expression of enzyme molecules on the surface of ... C. Enhanced transport of substrate molecules into hepatocytes D. Increased synthesis of enzyme protein

Last Answer : D. Increased synthesis of enzyme protein

Induction of drug metabolizing enzymes involves: A. A conformational change in the enzyme protein to favour binding of substrate molecules B. Expression of enzyme molecules on the surface of hepatocytes C. Enhanced transport of substrate molecules into hepatocytes D. Increased synthesis of enzyme protein

Description : Induction of drug metabolizing enzymes involves: A. A conformational change in the enzyme protein to favour binding of substrate molecules B. Expression of enzyme molecules on the surface of ... C. Enhanced transport of substrate molecules into hepatocytes D. Increased synthesis of enzyme protein

Last Answer : D. Increased synthesis of enzyme protein

The termination of heparin activity by protamine sulfate is due to (a) A chelating action (b) The inhibition of gastrointestinal absorption of heparin (c) The displacement of heparin-plasma protein binding (d) An acid-base interaction (e) The prothrombin-like activity of protamine

Description : The termination of heparin activity by protamine sulfate is due to (a) A chelating action (b) The inhibition of gastrointestinal absorption of heparin (c) The displacement of heparin-plasma protein binding (d) An acid-base interaction (e) The prothrombin-like activity of protamine

Last Answer : Ans: D

Use of adenosine for terminating an episode of paroxysmal supraventricular tachycardia has the following advantages except: A. It does not produce any side effect B. It can be given to patients with low blood pressure C. Its action lasts less than 1 min after bolus intravenous injection D. It is effective in patients not responding to verapamil

Description : Use of adenosine for terminating an episode of paroxysmal supraventricular tachycardia has the following advantages except: A. It does not produce any side effect B. It can be given to patients ... 1 min after bolus intravenous injection D. It is effective in patients not responding to verapamil

Last Answer : A. It does not produce any side effect

The following are true about calcium regulating hormones: a. calcitonin increases the plasma calcium concentration b. vitamin D is produced in the skin c. vitamin D is metabolized to its active form in the liver and kidney. d. vitamin D increases calcium absorption from the gut

Description : The following are true about calcium regulating hormones: a. calcitonin increases the plasma calcium concentration b. vitamin D is produced in the skin c. vitamin D is metabolized to its active form in the liver and kidney. d. vitamin D increases calcium absorption from the gut

Last Answer : vitamin D increases calcium absorption from the gut

In addition to slow intravenous infusion, which of the following routes of administration allows for titration of the dose of a drug with the response: A. Sublingual B. Transdermal C. Inhalational D. Nasal insufflation

Description : In addition to slow intravenous infusion, which of the following routes of administration allows for titration of the dose of a drug with the response: A. Sublingual B. Transdermal C. Inhalational D. Nasal insufflation

Last Answer : C. Inhalational

In addition to slow intravenous infusion, which of the following routes of administration allows for titration of the dose of a drug with the response: A. Sublingual B. Transdermal C. Inhalational D. Nasal insufflation

Description : In addition to slow intravenous infusion, which of the following routes of administration allows for titration of the dose of a drug with the response: A. Sublingual B. Transdermal C. Inhalational D. Nasal insufflation

Last Answer : C. Inhalational

If a drug is excreted in urine at the rate of 10 mg/hr at a steady-state plasma concentration of 5 mg/L, then its renal clearance is: A. 0.5 L/hr B. 2.0 L/hr C. 5.0 L/hr D. 20 L/hr

Description : If a drug is excreted in urine at the rate of 10 mg/hr at a steady-state plasma concentration of 5 mg/L, then its renal clearance is: A. 0.5 L/hr B. 2.0 L/hr C. 5.0 L/hr D. 20 L/hr

Last Answer : B. 2.0 L/hr

Compared to subcutaneous injection, the intramuscular injection of drugs: A. Is more painful B. Produces faster response C. Is unsuitable for depot preparations D. Carries greater risk of anaphylactic reaction

Description : Compared to subcutaneous injection, the intramuscular injection of drugs: A. Is more painful B. Produces faster response C. Is unsuitable for depot preparations D. Carries greater risk of anaphylactic reaction

Last Answer : B. Produces faster response

Compared to subcutaneous injection, the intramuscular injection of drugs: A. Is more painful B. Produces faster response C. Is unsuitable for depot preparations D. Carries greater risk of anaphylactic reaction

Description : Compared to subcutaneous injection, the intramuscular injection of drugs: A. Is more painful B. Produces faster response C. Is unsuitable for depot preparations D. Carries greater risk of anaphylactic reaction

Last Answer : B. Produces faster response

The most important factor governing absorption of a drug from intact skin is: A. Molecular weight of the drug B. Site of application C. Lipid solubility of the drug D. Nature of the base used in the formulation

Description : The most important factor governing absorption of a drug from intact skin is: A. Molecular weight of the drug B. Site of application C. Lipid solubility of the drug D. Nature of the base used in the formulation

Last Answer : C. Lipid solubility of the drug

The most important factor governing absorption of a drug from intact skin is: A. Molecular weight of the drug B. Site of application C. Lipid solubility of the drug D. Nature of the base used in the formulation

Description : The most important factor governing absorption of a drug from intact skin is: A. Molecular weight of the drug B. Site of application C. Lipid solubility of the drug D. Nature of the base used in the formulation

Last Answer : C. Lipid solubility of the drug

The most important factor which governs diffusion of drugs across capillaries other than those in the brain is: A. Blood flow through the capillary B. Lipid solubility of the drug C. pKa value of the drug D. pH of the medium

Description : The most important factor which governs diffusion of drugs across capillaries other than those in the brain is: A. Blood flow through the capillary B. Lipid solubility of the drug C. pKa value of the drug D. pH of the medium

Last Answer : A. Blood flow through the capillary