Applied Pharmacology for The Dental Hygienist
9th Edition Exam Preparation Newest With
Complete Questions And Correct Detailed
Answers| Brand New Version
1. Which branch of the nervous system is primarily responsible for
“rest and digest” functions?
A. Sympathetic
B. Parasympathetic
C. Central
D. Peripheral
It regulates normal organ maintenance activities.
2. What receptor type responds to acetylcholine at neuromuscular
junctions?
A. Nicotinic
B. Muscarinic
C. Dopaminergic
D. Adrenergic
Muscarinic receptors mediate parasympathetic effects in smooth
muscle and glands.
3. Which enzyme inactivates acetylcholine in the synaptic cleft?
A. Monoamine oxidase
B. Catechol-O-methyltransferase
C. Acetylcholinesterase
D. Choline acetyltransferase
Acetylcholinesterase rapidly breaks down ACh.
,4. Beta-blockers affect which receptor subtype?
A. α1
B. β1 and β2
C. Muscarinic
D. Nicotinic
These are adrenergic receptors involved in heart and bronchial
responses.
5. What is the primary adverse effect of opioid analgesics?
A. Hypertension
B. Respiratory depression
C. Hyperactivity
D. Seizures
Opioids suppress the respiratory center in the brainstem.
6. The antidote for opioid overdose is:
A. Diazepam
B. Naloxone
C. Flumazenil
D. Atropine
Naloxone competes at opioid receptors to reverse toxicity.
7. What class of drug is lidocaine?
A. Opioid
B. Antibiotic
C. Local anesthetic
D. Antidepressant
Lidocaine blocks sodium channels to prevent nerve conduction.
, 8. Which local anesthetic has the longest duration?
A. Procaine
B. Bupivacaine
C. Lidocaine
D. Mepivacaine
Bupivacaine’s structure increases binding and duration.
9. Which condition is a relative contraindication for epinephrine in
anesthetic?
A. Diabetes
B. Uncontrolled hypertension
C. Mild asthma
D. Osteoarthritis
Epinephrine can raise blood pressure further.
10. What is the most common adverse effect of antibiotics in
dentistry?
A. Hair loss
B. Dry mouth
C. Gastrointestinal upset
D. Palpitations
Antibiotics disrupt normal GI flora.
11. Penicillin works by inhibiting:
A. Protein synthesis
B. Nucleic acid synthesis
C. Cell wall synthesis
D. Folate metabolism
Penicillin targets peptidoglycan formation.
9th Edition Exam Preparation Newest With
Complete Questions And Correct Detailed
Answers| Brand New Version
1. Which branch of the nervous system is primarily responsible for
“rest and digest” functions?
A. Sympathetic
B. Parasympathetic
C. Central
D. Peripheral
It regulates normal organ maintenance activities.
2. What receptor type responds to acetylcholine at neuromuscular
junctions?
A. Nicotinic
B. Muscarinic
C. Dopaminergic
D. Adrenergic
Muscarinic receptors mediate parasympathetic effects in smooth
muscle and glands.
3. Which enzyme inactivates acetylcholine in the synaptic cleft?
A. Monoamine oxidase
B. Catechol-O-methyltransferase
C. Acetylcholinesterase
D. Choline acetyltransferase
Acetylcholinesterase rapidly breaks down ACh.
,4. Beta-blockers affect which receptor subtype?
A. α1
B. β1 and β2
C. Muscarinic
D. Nicotinic
These are adrenergic receptors involved in heart and bronchial
responses.
5. What is the primary adverse effect of opioid analgesics?
A. Hypertension
B. Respiratory depression
C. Hyperactivity
D. Seizures
Opioids suppress the respiratory center in the brainstem.
6. The antidote for opioid overdose is:
A. Diazepam
B. Naloxone
C. Flumazenil
D. Atropine
Naloxone competes at opioid receptors to reverse toxicity.
7. What class of drug is lidocaine?
A. Opioid
B. Antibiotic
C. Local anesthetic
D. Antidepressant
Lidocaine blocks sodium channels to prevent nerve conduction.
, 8. Which local anesthetic has the longest duration?
A. Procaine
B. Bupivacaine
C. Lidocaine
D. Mepivacaine
Bupivacaine’s structure increases binding and duration.
9. Which condition is a relative contraindication for epinephrine in
anesthetic?
A. Diabetes
B. Uncontrolled hypertension
C. Mild asthma
D. Osteoarthritis
Epinephrine can raise blood pressure further.
10. What is the most common adverse effect of antibiotics in
dentistry?
A. Hair loss
B. Dry mouth
C. Gastrointestinal upset
D. Palpitations
Antibiotics disrupt normal GI flora.
11. Penicillin works by inhibiting:
A. Protein synthesis
B. Nucleic acid synthesis
C. Cell wall synthesis
D. Folate metabolism
Penicillin targets peptidoglycan formation.
