MDC Pharmacokinetics (PK) I Practice Exam

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• Dulcolax is the brand name for which laxative?
• Compare one-compartment and two-compartment pharmacokinetic models.
• What term best describes fever-reducing medications?
• How is a loading dose calculated, and when is it used?
• Which term refers to a medication that lowers uric acid level in the blood?
• Which statement best describes noncompartmental analysis versus compartment modeling?
• Why is the unbound fraction (fu) important in PK?
• For intermittent IV infusion dosing, which equation correctly defines Css,avg?
• How do intrinsic clearance (CLint) and hepatic blood flow interact to determine hepatic clearance?
• AUC is inversely related to clearance for a given dose.
• What is the well-stirred model formula for hepatic clearance?
• Which preparation frequently contains antiseptics, antibiotics, and/or anesthetics used for treating the pharynx and nasopharynx?
• Which statement about k = CL / Vd is true?
• Which term describes medications that lower body temperature?
• Which preparation is used to evacuate the bowels when administered rectally?
• How do you determine the maintenance dose for a target Css,avg with a known dosing interval?
• Which route corresponds to administration to the eyes?
• Which term corresponds to the definition 'Relieves pain'?
• Which statement best describes the effect of clearance on steady-state concentration during continuous IV infusion?
• Which drug is a nonsteroidal anti-inflammatory drug?
• Which term describes a concentrated solution of sugar such as sucrose in water?
• How do enzyme induction and inhibition affect PK?
• What is the difference between the volume of distribution at steady state (Vdss) and Vd?
• Which term denotes a dosage form designed to deliver through the skin via a patch?
• Which medication is a calcium channel blocker used to treat hypertension?
• How is extraction ratio (ER) defined in pharmacokinetics?
• In the well-stirred hepatic clearance equation, if fu × CLint is much greater than Q, ClH approximates to which?
• How can drug transporters influence pharmacokinetics?
• What does 4–5 half-lives indicate in pharmacokinetics?
• Which dosage form is intended for administration to the female genital organs?
• Which term is used to relieve asthma?
• How does first-pass metabolism affect oral bioavailability and AUC?
• Which term corresponds to the definition 'Destroy sensation of pain'?
• If dose is doubled with constant clearance, what happens to IV bolus AUC?
• Which equation correctly describes the IV bolus concentration-time profile for a one-compartment model?
• What does the symbol λz represent in pharmacokinetics?
• Which dosage form is described as being enclosed in a gelatin shell?
• Which term means to prevent generation of gas in the intestine or stomach?
• Which term refers to an extended-release capsule containing spherical granules?
• Which of the following is an anti-diarrheal medication?
• What is the relationship between AUC and dose for an IV bolus, and what does it imply about clearance?
• Which statement correctly describes how dose affects Cmax for first-order versus zero-order absorption?
• Which term denotes drugs that lower high blood pressure?
• Define ka and explain how the relationship between ka and k shapes the oral concentration-time profile.
• Which term corresponds to the descriptor 'skin'?
• Write the hepatic clearance equation from the well-stirred model.
• In population pharmacokinetics, what is the difference between fixed effects and random effects?
• Which dosage form is designed to deliver through the skin via a patch?
• Which variables determine hepatic clearance in the well-stirred model?
• Which statement best describes flip-flop pharmacokinetics?
• Repeated dosing before complete clearance leads to drug accumulation. This occurs when the dosing interval is shorter than the time required for complete clearance.
• In a two-compartment model, what do alpha and beta phases represent?
• Which phase in a two-compartment model is associated with elimination?
• Which of the following expresses the accumulation factor R for first-order kinetics with dosing interval τ?
• Which dosage form is generally a water-base preparation applied to wet surfaces?
• Which term stops diarrhea?
• Which statement differentiates first-order from zero-order absorption?
• Why is hepatic impairment considered in PK? how does it affect hepatic clearance?
• Which term describes a drug that controls irregular heartbeat?
• Define therapeutic window and explain how pharmacokinetics supports staying within it.
• Which preparation is used therapeutically as rinses to reduce plaque and gingivitis, and cosmetically to reduce bad breath?
• What is fu and its impact on pharmacodynamics and PK parameters?
• A drug exhibits zero-order elimination. Which of the following best describes its concentration-time profile and a clinical consequence?
• Which dosage form is an oil-base preparation generally applied to dry or scaly skin?
• Why are peak and trough concentrations monitored during therapy?
• For a drug with first-order kinetics, the time to reach steady state is approximately how many half-lives, and what does it depend on?
• Which term describes agents that lower or control blood sugar?
• Hepatic extraction ratio ER is defined as CLh / Qh. Which statement correctly describes high ER vs low ER drugs?
• Which solid pharmaceutical dosage form is prepared by compression or molding, with or without suitable diluent?
• Allometric scaling exponent for clearance across body weight is typically?
• Which drug is used as an antiamebic agent?
• How do you calculate oral bioavailability (F) using AUC after IV and oral dosing?
• Which term matches the definition 'Stops diarrhea or loose bowel movement'?
• What is noncompartmental analysis (NCA) used for?
• Which statement correctly describes linear pharmacokinetics?
• How is the initial drug concentration after an IV bolus (C0) related to dose and Vd?
• Which term is used for allergy-relieving medications?
• Which brand name corresponds to Norvasc?
• Which dosage form is designed for insertion into the rectum, vagina, or urethra?
• Which term in the well-stirred model represents the liver's capacity to clear drug in the unbound state?
• How should dosing be adjusted in renal impairment based on creatinine clearance?
• In hepatic clearance, for drugs with a high extraction ratio, what primarily limits clearance?
• Which class is used to treat high blood pressure?
• For k = 0.1 h−1 and tau = 12 h, what are the t1/2 and approximate time to 90% of steady state?
• Which dosage form has a stiffer consistency and is not suitable for hairy surfaces?
• Which formula represents a loading dose used to quickly achieve target drug concentration?
• Aspilets is the brand name for which drug?
• Which rectal injection is used to evacuate the bowels?
• Which term is used for the definition 'Relieves asthma'?
• Define and distinguish loading dose and maintenance dose, including formulas with Css and CL/Vd.
• What characterizes zero-order elimination?
• Which statement best describes how GI pH affects drug absorption?
• In a two-compartment PK model, what do the α and β rate constants represent?
• Which dosage form is intended for administration by mouth (PO)?
• In the well-stirred model, when intrinsic clearance is very high relative to hepatic blood flow, hepatic clearance approaches which value?
• Which term is described by the definition 'Neutralizes acidity'?
• Which term is used for medicines that liquefy thick phlegm?
• How do you estimate clearance from AUC after IV dosing?
• What is the formula for half-life t1/2 in first-order kinetics, and what factors influence it?
• How does obesity typically affect the volume of distribution for lipophilic drugs?
• Which equation gives the oral dose needed to achieve a target Css when clearance, dosing interval, and bioavailability are known?
• Which brand name corresponds to metronidazole?
• In a one-compartment model, which equation correctly expresses the elimination rate constant k in terms of clearance (CL) and volume of distribution (Vd)?
• Which statement about nonlinear pharmacokinetics due to saturable transporters is true?
• How is AUC related to clearance for IV bolus administration?
• What does AUC represent in pharmacokinetics?
• Prepared agglomerates of smaller powder particles; irregular in shape and size but may be spherical.
• Which medication is an analgesic and antipyretic?
• How does tissue perfusion influence distribution and pharmacokinetic parameters?
• Which term is associated with the nose?
• If a drug is given orally with F less than 1, how does the oral AUC compare with the IV AUC when equal doses are used?
• Noncompartmental analysis uses concentration-time data to estimate pharmacokinetic parameters without assuming a specific compartmental model. Which option best describes this approach?
• Which dosage form is intended for use in the ear?
• In PK, what is meant by central and peripheral compartments?
• For a drug with a large Vd, the distribution process can be rate-limiting, leading to a prolonged distribution phase.
• Which term is used for medications that treat allergies?
• Which brand name is associated with mefenamic acid?
• What is the area under the curve (AUC) and how is it used to compare formulations?
• Which term corresponds to expelling ameba?
• In a two-compartment model, which of the following best describes the central and peripheral compartments?
• Which term denotes a dosage form used for administration to the ear?
• How does body weight influence PK parameter scaling?
• Which equation correctly gives the half-life in a one-compartment model with first-order elimination?
• Which statement defines oral bioavailability F?
• Which term denotes a dosage form delivered by injection, including IM, IV, or SC routes?
• Which term describes agents that induce or stimulate bowel movement and loosen stools?
• Which solid dosage form is enclosed in a gelatin shell?
• A patient with obesity has an increased Vd for lipophilic drugs. How would this influence loading dose calculation?
• How is bioavailability F determined, and what role does AUC play in this determination?
• A drug has CL = 10 L/h and t1/2 = 3 h. Calculate Vd.
• What is the impact of renal impairment on the pharmacokinetics of drugs that are renally cleared?
• If clearance increases with volume of distribution constant, what happens to half-life?
• What is the loading dose for a drug with a target Css and known Vd and F?
• Name common routes of drug administration considered in PK.
• Ibuprofen is classified as which type of drug?
• Which brand name corresponds to metformin?
• When does Michaelis-Menten (nonlinear) pharmacokinetics occur?
• Which statement best defines volume of distribution and what a large Vd implies about tissue distribution?
• For low extraction ratio drugs, hepatic clearance is primarily limited by which factors?
• If Vd = 50 L and CL = 5 L/h, what is the elimination half-life t1/2?
• In a two-compartment model, which statement correctly identifies the alpha phase?
• If t1/2 = 4 h and dosing interval τ = 24 h, the accumulation factor R is approximately:
• Which statement correctly distinguishes linear from nonlinear pharmacokinetics?
• Which drug among the list is used to treat type 2 diabetes?
• Elimination rate constant k is related to clearance and volume of distribution by which formula?
• Which of the following best defines clearance (CL) in pharmacokinetics?
• If intrinsic clearance is very high relative to hepatic blood flow, hepatic clearance approaches which factor?
• Which drug is an anti-diabetic agent?
• Which statement about extended-release formulations with respect to exposure is commonly observed?
• Which brand name is associated with meclizine?
• How does unbound fraction fu influence volume of distribution?
• Which brand name is associated with the anti-diarrheal agent loperamide?
• What is the accumulation factor (R) for multiple dosing, and how is it calculated?
• Stimulant laxative in the list is which?
• Which route is described by administration by mouth?
• If Vd = 50 L and CL = 5 L/h, what is the half-life t1/2?
• Enterohepatic circulation can affect pharmacokinetics by which mechanism?
• Define absolute and relative bioavailability.
• Ambroxol is a mucolytic.
• Which metrics are typically used in noncompartmental analysis?
• Which statement about high extraction ratio drugs is true?
• After intravenous administration in a two-compartment model, the concentration-time profile typically shows a rapid distribution phase followed by a slower elimination phase.
• How is renal clearance approximated for drugs that are filtered but not secreted or reabsorbed?
• How long does it typically take to reach steady state with repetitive dosing?
• Which statement correctly describes systemic clearance compared to renal clearance?
• Which term refers to preparations that reduce excess fat in the body?
• How is AUC calculated for an oral dose considering bioavailability?
• What is the relationship between total systemic clearance and its component clearances?
• What does a high hepatic extraction ratio indicate about drug clearance?
• The accumulation factor R increases as the dosing interval tau becomes shorter, assuming constant k.
• For an oral dose with F = 0.5, Dose = 100 mg, and CL = 5 L/h, what is the AUC (in arbitrary units)?
• Expels internal worms?
• Which feature indicates distribution phase in a two-compartment model?
• Which dosage form is intended for administration to the eyes?
• Which medication is an antiemetic?
• Which expression correctly defines maintenance dose to maintain Css?
• Which drug is an anti-asthmatic bronchodilator?
• Which statement best describes the distribution phase in a two-compartment model?
• Which term refers to a drug category used to lower uric acid levels in the blood?
• Which term describes medications applied to the skin?
• Which term corresponds to the descriptor 'under the tongue'?
• For an IV infusion, what is the relationship between Css,avg, dose rate, and clearance?
• How can you determine if a drug follows linear pharmacokinetics?
• In a one-compartment model with first-order elimination, if clearance increases while volume of distribution remains constant, what happens to the drug's half-life?
• How can age or disease affect pharmacokinetic parameters such as clearance and volume of distribution?
• What defines bioequivalence and what are typical acceptance criteria?
• Which term corresponds to the definition 'Destroy sensation of pain'?
• Gliclazide belongs to which therapeutic category?
• Which term matches the definition 'Prevents vomiting'?
• Which term neutralizes acidity?
• How does renal impairment affect drug clearance and half-life?
• Ambroxol is marketed under which brand name?
• What term describes a two-phase system consisting of a finely divided solid dispersed in a solid, liquid, or gas?
• What is the purpose of a loading dose, and what is a potential risk?
• What is the expression for AUC after a non-intravenous dose including bioavailability?
• Which drug in the list is a calcium channel blocker used for hypertension?
• In patients with reduced renal function, what is the recommended dosing approach?
• An IV bolus delivers 300 mg into a system with Vd of 25 L. What is the initial concentration C0?
• In first-order kinetics, which statement correctly describes the relationship among t1/2, Vd, and CL?
• Which brand name is associated with salbutamol?
• Which term denotes the dosage form delivered by injection, including IM, IV, or SC routes?
• Which term refers to a sweetened liquid that is a concentrated sugar solution?
• Which statement about Vdss is true?
• What is the primary purpose of therapeutic drug monitoring in pharmacokinetics?
• Define volume of distribution (Vd) and interpret a large Vd.
• What does the hepatic extraction ratio (ER) indicate about high-ER versus low-ER drugs?
• Which statement describes the pharmacokinetic differences between immediate-release and extended-release formulations?
• Which drug is an anti-obesity agent?
• In terms of plasma concentration-time profile, IV bolus versus IV infusion, which statement is correct?
• Define the elimination rate constant k and its relation to half-life.
• If a drug is given IV with Dose = 200 mg and AUC_iv = 40 mg·h/L, what is the clearance (CL)?
• Which dosage form is used for insertion into the rectum, vagina, or urethra?
• If the dosing interval τ is halved while keeping dose and clearance constant, how is Css,avg affected?
• IV bolus: If Dose is doubled and Vd constant, C0 will:
• Which expression defines a loading dose in relation to target Css and volume of distribution?
• To reach a target steady-state concentration Css, what is the required infusion rate?
• If Dose IV = 400 mg and Vd = 20 L, what is C0?
• What is the impact of enzyme inhibition on the PK of a co-administered drug?
• Which parameter directly determines the fraction of an orally administered dose that reaches systemic circulation?
• If clearance decreases while the dose remains constant, what happens to drug exposure as measured by AUC?
• Which statement best defines clearance and its common units?
• Carbocisteine is best described as which type of medication?
• Which term is used for substances that are employed to treat various types of cancer?
• Which option lists the four primary pharmacokinetic processes?
• How do you calculate the elimination half-life from the terminal slope of a concentration-time curve?
• What is bioavailability (F) and how is it calculated for an extravascular dose?
• Under Michaelis-Menten (nonlinear) kinetics, how does clearance behave at high drug concentrations?
• What is the impact of renal replacement therapy (dialysis) on drug PK?
• Amlodipine is an antihypertensive medication.
• Which dosage form is used for administration to the rectum?
• Which term denotes medications that relieve congestions?
• Volume of distribution is a theoretical parameter. What does a Vd greater than total body water suggest?
• Which factor increases the AUC after an oral dose if clearance remains constant?
• In a two-compartment pharmacokinetic model, what does the alpha phase represent?
• In a two-compartment pharmacokinetic model, what do the α and β phases represent?
• Which term is used to treat various cancers?
• Which statement correctly defines loading dose and maintenance dose in PK dosing strategy?
• Which extended release capsule contains spherical multi-colored granules?
• In pharmacokinetic modeling, what does the distribution phase of a two-compartment model represent?
• With t1/2 = 4 h and dosing interval τ = 12 h, the accumulation factor R is approximately: