Test Bank for Applied Pharmacology for
the Dental Hygienist 9th Edition by Elena
Bablenis Haveles | Comprehensive Exam
Prep Questions, Answers & Rationales
Study Guide 2026
Question 1
Which route of drug administration generally produces
the fastest onset of action?
A. Oral
B. Topical
C. Intravenous
D. Subcutaneous
Answer: C. Intravenous
Rationale: Intravenous administration delivers the drug
directly into the bloodstream, producing the most rapid
onset of action.
Question 2
What is the primary role of the liver in drug metabolism?
A. Drug excretion
B. Drug absorption
,C. Drug biotransformation
D. Drug storage only
Answer: C. Drug biotransformation
Rationale: The liver metabolizes many medications into
forms that are easier for the body to eliminate.
Question 3
A patient taking warfarin should be monitored closely
before invasive dental procedures because of the risk of:
A. Hypertension
B. Excessive bleeding
C. Hyperglycemia
D. Bradycardia
Answer: B. Excessive bleeding
Rationale: Warfarin is an anticoagulant that reduces
blood clotting and may increase bleeding during dental
treatment.
Question 4
Which branch of pharmacology studies the effects of
drugs on the body?
A. Pharmacokinetics
B. Toxicology
,C. Pharmacodynamics
D. Therapeutics
Answer: C. Pharmacodynamics
Rationale: Pharmacodynamics focuses on how drugs
affect body systems and produce therapeutic effects.
Question 5
Which medication class is commonly prescribed to treat
bacterial infections?
A. Antihistamines
B. Antibiotics
C. Analgesics
D. Antacids
Answer: B. Antibiotics
Rationale: Antibiotics are designed to kill or inhibit the
growth of bacteria.
Question 6
A common adverse effect of opioid analgesics is:
A. Diarrhea
B. Constipation
C. Hypertension
D. Insomnia
, Answer: B. Constipation
Rationale: Opioids frequently slow gastrointestinal
motility, resulting in constipation.
Question 7
Which vital sign should be carefully monitored when
administering local anesthetics containing epinephrine?
A. Temperature
B. Oxygen saturation only
C. Blood pressure and heart rate
D. Vision
Answer: C. Blood pressure and heart rate
Rationale: Epinephrine may increase heart rate and
blood pressure, particularly in sensitive patients.
Question 8
What is the term for an undesired and harmful response to
a medication given at normal doses?
A. Therapeutic effect
B. Adverse drug reaction
C. Tolerance
D. Potentiation
Answer: B. Adverse drug reaction
the Dental Hygienist 9th Edition by Elena
Bablenis Haveles | Comprehensive Exam
Prep Questions, Answers & Rationales
Study Guide 2026
Question 1
Which route of drug administration generally produces
the fastest onset of action?
A. Oral
B. Topical
C. Intravenous
D. Subcutaneous
Answer: C. Intravenous
Rationale: Intravenous administration delivers the drug
directly into the bloodstream, producing the most rapid
onset of action.
Question 2
What is the primary role of the liver in drug metabolism?
A. Drug excretion
B. Drug absorption
,C. Drug biotransformation
D. Drug storage only
Answer: C. Drug biotransformation
Rationale: The liver metabolizes many medications into
forms that are easier for the body to eliminate.
Question 3
A patient taking warfarin should be monitored closely
before invasive dental procedures because of the risk of:
A. Hypertension
B. Excessive bleeding
C. Hyperglycemia
D. Bradycardia
Answer: B. Excessive bleeding
Rationale: Warfarin is an anticoagulant that reduces
blood clotting and may increase bleeding during dental
treatment.
Question 4
Which branch of pharmacology studies the effects of
drugs on the body?
A. Pharmacokinetics
B. Toxicology
,C. Pharmacodynamics
D. Therapeutics
Answer: C. Pharmacodynamics
Rationale: Pharmacodynamics focuses on how drugs
affect body systems and produce therapeutic effects.
Question 5
Which medication class is commonly prescribed to treat
bacterial infections?
A. Antihistamines
B. Antibiotics
C. Analgesics
D. Antacids
Answer: B. Antibiotics
Rationale: Antibiotics are designed to kill or inhibit the
growth of bacteria.
Question 6
A common adverse effect of opioid analgesics is:
A. Diarrhea
B. Constipation
C. Hypertension
D. Insomnia
, Answer: B. Constipation
Rationale: Opioids frequently slow gastrointestinal
motility, resulting in constipation.
Question 7
Which vital sign should be carefully monitored when
administering local anesthetics containing epinephrine?
A. Temperature
B. Oxygen saturation only
C. Blood pressure and heart rate
D. Vision
Answer: C. Blood pressure and heart rate
Rationale: Epinephrine may increase heart rate and
blood pressure, particularly in sensitive patients.
Question 8
What is the term for an undesired and harmful response to
a medication given at normal doses?
A. Therapeutic effect
B. Adverse drug reaction
C. Tolerance
D. Potentiation
Answer: B. Adverse drug reaction
