BIO 290 Exam 1 Actual Exam V1 | BIO 290 Pharmacology (BIO290
Exam 1) | Joyce University
1. Which term describes the study of what the body does to a drug, including absorption,
distribution, metabolism, and excretion?
A. Pharmacodynamics
B. Pharmacokinetics
C. Pharmacotherapeutics
D. Pharmacognosy
Answer: B
Rationale: Pharmacokinetics focuses on the movement of a drug through the body over
time. This includes the processes of absorption into the bloodstream, distribution to
tissues, metabolic breakdown, and final excretion. In contrast, pharmacodynamics refers to
what the drug does to the body at the receptor level.
2. A patient is taking a drug that has a very narrow therapeutic index. What does this mean
for the patient’s care?
A. The drug is very safe and requires little monitoring.
B. The drug has a high potential for addiction.
C. The difference between a therapeutic dose and a toxic dose is small.
D. The drug will reach steady state within a few hours.
Answer: C
Rationale: A narrow therapeutic index indicates that there is a small margin of safety
between the effective dose and the lethal or toxic dose. Patients taking these medications
require frequent blood level monitoring to prevent toxicity. This concept is fundamental to
ensuring medication safety in clinical practice.
3. Which organ is primarily responsible for the metabolism of most drugs?
A. Kidneys
B. Liver
C. Lungs
D. Small Intestine
Answer: B
,Rationale: The liver is the primary site for drug metabolism due to its high concentration
of microsomal enzymes, such as the Cytochrome P450 system. Metabolism transforms
lipophilic drugs into water-soluble metabolites that can be easily excreted. Dysfunction in
this organ can lead to drug accumulation and toxicity.
4. When a drug is administered orally, it passes from the intestinal lumen into the portal vein
and then to the liver before reaching systemic circulation. This is known as:
A. Bioavailability
B. First-pass effect
C. Steady state
D. Passive diffusion
Answer: B
Rationale: The first-pass effect significantly reduces the concentration of a drug before it
reaches the systemic circulation. This occurs because the liver metabolizes a portion of the
drug immediately after absorption from the GI tract. Drugs with a high first-pass effect are
often given via non-oral routes to ensure efficacy.
5. A drug that binds to a receptor and produces a maximal biological response is called a(n):
A. Antagonist
B. Inverse agonist
C. Agonist
D. Partial agonist
Answer: C
Rationale: An agonist is a molecule that mimics the action of endogenous substances by
binding to and activating specific receptors. This binding triggers a biochemical or
physiological response within the cell. Agonists are characterized by both affinity for the
receptor and intrinsic activity.
6. Which of the following is considered one of the ‘Six Rights’ of medication administration?
A. Right Documentation
B. Right Physician
C. Right Pharmacy
D. Right Cost
Answer: A
Rationale: Right documentation is essential for patient safety to prevent double-dosing
and to track therapeutic response. The six rights typically include right patient, right drug,
, right dose, right route, right time, and right documentation. Following these protocols is
the primary way nurses prevent medication errors.
7. What is the primary route of drug excretion from the body?
A. Kidneys
B. Sweat glands
C. Biliary system
D. Exhalation
Answer: A
Rationale: The kidneys are the most important organs for drug excretion, primarily
through glomerular filtration, active tubular secretion, and passive tubular reabsorption.
Assessment of renal function, such as creatinine clearance, is vital for determining safe
dosages. If renal function is impaired, drugs may remain in the body longer than intended.
8. A patient has a low serum albumin level. How will this affect the distribution of a highly
protein-bound drug?
A. The drug will be metabolized more slowly.
B. The drug will be unable to reach its target site.
C. There will be more free (active) drug in the bloodstream.
D. The drug will become irreversibly bound to red blood cells.
Answer: C
Rationale: Highly protein-bound drugs compete for binding sites on albumin; only the
‘free’ portion is pharmacologically active. When albumin levels are low
(hypoalbuminemia), there are fewer binding sites, leading to an increase in free drug
concentration. This increase can result in heightened therapeutic effects or potential
toxicity.
9. Which route of administration provides the fastest onset of action?
A. Intramuscular (IM)
B. Intravenous (IV)
C. Oral (PO)
D. Subcutaneous (SQ)
Answer: B
Rationale: Intravenous administration delivers the drug directly into the venous
circulation, bypassing the absorption process entirely. This leads to an immediate onset of
Exam 1) | Joyce University
1. Which term describes the study of what the body does to a drug, including absorption,
distribution, metabolism, and excretion?
A. Pharmacodynamics
B. Pharmacokinetics
C. Pharmacotherapeutics
D. Pharmacognosy
Answer: B
Rationale: Pharmacokinetics focuses on the movement of a drug through the body over
time. This includes the processes of absorption into the bloodstream, distribution to
tissues, metabolic breakdown, and final excretion. In contrast, pharmacodynamics refers to
what the drug does to the body at the receptor level.
2. A patient is taking a drug that has a very narrow therapeutic index. What does this mean
for the patient’s care?
A. The drug is very safe and requires little monitoring.
B. The drug has a high potential for addiction.
C. The difference between a therapeutic dose and a toxic dose is small.
D. The drug will reach steady state within a few hours.
Answer: C
Rationale: A narrow therapeutic index indicates that there is a small margin of safety
between the effective dose and the lethal or toxic dose. Patients taking these medications
require frequent blood level monitoring to prevent toxicity. This concept is fundamental to
ensuring medication safety in clinical practice.
3. Which organ is primarily responsible for the metabolism of most drugs?
A. Kidneys
B. Liver
C. Lungs
D. Small Intestine
Answer: B
,Rationale: The liver is the primary site for drug metabolism due to its high concentration
of microsomal enzymes, such as the Cytochrome P450 system. Metabolism transforms
lipophilic drugs into water-soluble metabolites that can be easily excreted. Dysfunction in
this organ can lead to drug accumulation and toxicity.
4. When a drug is administered orally, it passes from the intestinal lumen into the portal vein
and then to the liver before reaching systemic circulation. This is known as:
A. Bioavailability
B. First-pass effect
C. Steady state
D. Passive diffusion
Answer: B
Rationale: The first-pass effect significantly reduces the concentration of a drug before it
reaches the systemic circulation. This occurs because the liver metabolizes a portion of the
drug immediately after absorption from the GI tract. Drugs with a high first-pass effect are
often given via non-oral routes to ensure efficacy.
5. A drug that binds to a receptor and produces a maximal biological response is called a(n):
A. Antagonist
B. Inverse agonist
C. Agonist
D. Partial agonist
Answer: C
Rationale: An agonist is a molecule that mimics the action of endogenous substances by
binding to and activating specific receptors. This binding triggers a biochemical or
physiological response within the cell. Agonists are characterized by both affinity for the
receptor and intrinsic activity.
6. Which of the following is considered one of the ‘Six Rights’ of medication administration?
A. Right Documentation
B. Right Physician
C. Right Pharmacy
D. Right Cost
Answer: A
Rationale: Right documentation is essential for patient safety to prevent double-dosing
and to track therapeutic response. The six rights typically include right patient, right drug,
, right dose, right route, right time, and right documentation. Following these protocols is
the primary way nurses prevent medication errors.
7. What is the primary route of drug excretion from the body?
A. Kidneys
B. Sweat glands
C. Biliary system
D. Exhalation
Answer: A
Rationale: The kidneys are the most important organs for drug excretion, primarily
through glomerular filtration, active tubular secretion, and passive tubular reabsorption.
Assessment of renal function, such as creatinine clearance, is vital for determining safe
dosages. If renal function is impaired, drugs may remain in the body longer than intended.
8. A patient has a low serum albumin level. How will this affect the distribution of a highly
protein-bound drug?
A. The drug will be metabolized more slowly.
B. The drug will be unable to reach its target site.
C. There will be more free (active) drug in the bloodstream.
D. The drug will become irreversibly bound to red blood cells.
Answer: C
Rationale: Highly protein-bound drugs compete for binding sites on albumin; only the
‘free’ portion is pharmacologically active. When albumin levels are low
(hypoalbuminemia), there are fewer binding sites, leading to an increase in free drug
concentration. This increase can result in heightened therapeutic effects or potential
toxicity.
9. Which route of administration provides the fastest onset of action?
A. Intramuscular (IM)
B. Intravenous (IV)
C. Oral (PO)
D. Subcutaneous (SQ)
Answer: B
Rationale: Intravenous administration delivers the drug directly into the venous
circulation, bypassing the absorption process entirely. This leads to an immediate onset of
