Interindividual variations in equieffective doses of a
drug are most marked if it is disposed by:
A. Glomerular filtration
B. Tubular secretion
C. Both glomerular filtration and tubular secretion
D. Hepatic metabolism

1 Answer

Answer :

D. Hepatic metabolism

Related questions

Description : Interindividual variations in equieffective doses of a drug are most marked if it is disposed by: A. Glomerular filtration B. Tubular secretion C. Both glomerular filtration and tubular secretion D. Hepatic metabolism

Last Answer : D. Hepatic metabolism

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

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

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

Description : If a drug undergoes net tubular secretion, its renal clearance will be: A. More than the glomerular filtration rate B. Equal to the glomerular filtration rate C. Less than the glomerular filtration rate D. Equal to the rate of urine formation

Last Answer : A. More than the glomerular filtration rate

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

Description : The most important channel of elimination of digoxin is: A. Glomerular filtration B. Tubular secretion C. Hepatic metabolism D. Excretion in bile

Last Answer : A. Glomerular filtration

Description : The pharmacokinetics of drugs in the neonate differs from that in adults, because their: A. Intestinal transit is fast B. Drug metabolizing enzymes are overactive C. Tubular transport mechanisms are not well developed D. Glomerular filtration rate is high

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

Description : The pharmacokinetics of drugs in the neonate differs from that in adults, because their: A. Intestinal transit is fast B. Drug metabolizing enzymes are overactive C. Tubular transport mechanisms are not well developed D. Glomerular filtration rate is high

Last Answer : C. 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

Description : If a drug undergoes net tubular secretion, its renal clearance will be: A. More than the glomerular filtration rate B. Equal to the glomerular filtration rate C. Less than the glomerular filtration rate D. Equal to the rate of urine formation

Last Answer : A. More than the glomerular filtration rate

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

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

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

Description : Choose the correct statement about topical NSAID preparations: A. They produce high drug levels in the blood by avoiding hepatic first pass metabolism B. They produce high drug levels in ... a strong placebo effect D. Interindividual variability in clinical response to these preparations is minimal

Last Answer : C. They elicit symptomatic relief in soft tissue rheumatism mainly by a strong placebo effect

Description : The Tm for PAH i.e the maximal secretory capacity of the tubule for PAH can be used to gavge the (A) Extent of tubular damage FATS AND FATTY ACID METABOLISM 81 (B) Impairment of the capacity of the tubule to perform osmotic work (C) Impairment of renal plasma flow (D) Glomerular filtration rate

Last Answer : Answer : A

Description : Para-amino hippurate excretion test is an indicator of (A) Glomerular filtration (B) Tubular secretion (C) Tubular reabsorption (D) Renal plasma flow

Last Answer : Answer : D

Description : Phenolsulphonephthalein excretion test is an indicator of (A) Glomerular filtration (B) Tubular secretion (C) Tubular reabsorption (D) Renal blood low

Last Answer : Answer : D

Description : Inulin clearance is a measure of (A) Glomerular filtration rate (B) Tubular secretion flow (C) Tubular reabsorption rate (D) Renal plasma flow

Last Answer : Answer : B

Description : In studies of the human body, which of the following terms is used to describe the first step in the production of urine? Is it: a) tubular secretion b) tubular reabsorption c) glomerular filtration d) none of these

Last Answer : ANSWER: C -- GLOMERULAR FILTRATION

Description : In patients of hepatic cirrhosis: A. The extent of change in pharmacokinetics of drugs can be predicted from the values of liver function tests B. High doses of furosemide can be safely used C. Metformin is the preferred oral hypoglycaemic D. Disposition of atenolol is not significantly affected

Last Answer : D. Disposition of atenolol is not significantly affected

Description : In patients of hepatic cirrhosis: A. The extent of change in pharmacokinetics of drugs can be predicted from the values of liver function tests B. High doses of furosemide can be safely used C. Metformin is the preferred oral hypoglycaemic D. Disposition of atenolol is not significantly affected

Last Answer : D. Disposition of atenolol is not significantly affected

Description : The plasma half life of pencillin-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 : Ans: D

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

Description : When therapeutic effects decline both below and above a narrow range of doses, a drug is said to exhibit: A. Ceiling effect B. Desensitization C. Therapeutic window phenomenon D. Nonreceptor mediated action

Last Answer : C. Therapeutic window phenomenon

Description : Measurement of inulin renal clearance is a measure for (A) Effective renal blood flow (B) Renal drug excretion rate (C) Active renal secretion (D) Glomerular filtration rate

Last Answer : (D) Glomerular filtration rate

Description : An undesirable effect of a drug that occurs at therapeutic doses and can be predicted from its pharmacological actions is called: A. Side effect B. Toxic effect C. Allergic reaction D. Idiosyncrasy

Last Answer : A. Side effect

Description : Which of the following is always true: A. A more potent drug is more efficacious B. A more potent drug is safer C. A more potent drug is clinically superior D. A more potent drug can produce the same response at lower doses

Last Answer : D. A more potent drug can produce the same response at lower doses

Description : An undesirable effect of a drug that occurs at therapeutic doses and can be predicted from its pharmacological actions is called: A. Side effect B. Toxic effect C. Allergic reaction D. Idiosyncrasy

Last Answer : A. Side effect

Description : A drug which is generally administered in standard doses without the need for dose individualization is: A. Insulin B. Mebendazole C. Prednisolone D. Digoxin

Last Answer : B. Mebendazole

Description : Which of the following is always true: A. A more potent drug is more efficacious B. A more potent drug is safer C. A more potent drug is clinically superior D. A more potent drug can produce the same response at lower doses

Last Answer : D. A more potent drug can produce the same response at lower doses

Description : 09. The reasons determing bioavailability are: a) Rheological parameters of blood b) Amount of a substance obtained orally and quantity of intakes c) Extent of absorption and hepatic first-pass effect d) Glomerular filtration rate

Last Answer : C

Description : Creatinine EDTA clearance is a test to measure (A) Renal plasma flow (B) Filtration fraction (C) Glomerular filtration rate (D) Tubular function

Last Answer : Answer : C

Description : Measurement of insulin clearance test is a measure of (A) Glomerular filtration rate (B) Filtration factor (C) Renal plasma flow (D) Tubular secretory mass

Last Answer : Answer : A

Description : Urea clearance test is used to determine the (A) Glomerular filtration rate (B) Renal plasma flow (C) Ability of kidney to concentrate the urine (D) Measurement of tubular mass

Last Answer : Answer : A

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

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

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

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

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

Description : Drug administered through the following route is most likely to be subjected to first-pass metabolism: A. Oral B. Sublingual C. Subcutaneous D. Rectal

Last Answer : A. Oral

Description : Drug metabolism can be induced by the following factors except: A. Cigarette smoking B. Acute alcohol ingestion C. Exposure to insecticides D. Consumption charcoal broiled meat

Last Answer : B. Acute alcohol ingestion

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

Description : Which of the following cytochrome P450 isoenzymes is involved in the metabolism of largest number of drugs in human beings and has been implicated in some dangerous drug interactions: A. CYP 3A4 B. CYP 2C9 C. CYP 2E1 D. CYP 1A2

Last Answer : A. CYP 3A4

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

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

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

Description : Drug administered through the following route is most likely to be subjected to first-pass metabolism: A. Oral B. Sublingual C. Subcutaneous D. Rectal

Last Answer : A. Oral

Description : Which of the following factors is responsible for the formation of concentrated urine? (a) Hydrostatic pressure during glomerular filtration. (b) Low levels of antidiuretic hormone. (c) ... the medullary interstitium in the kidneys. (d) Secretion of erythropoietin by Juxtaglomerular complex.

Last Answer : (c) Maintaining hyperosmolarity towards the medullary interstitium in the kidneys.

Description : Fixed dose combination formulations are not necessarily appropriate for: A. Drugs administered in standard doses B. Drugs acting by the same mechanism C. Antitubercular drugs D. Antihypertensive drugs

Last Answer : B. Drugs acting by the same mechanism