2010 Released Qs And Ans7

Front 1

Increased bleeding is associated with a
prolonged administration of
1. Warfarin (Coumadin).
2. codeine.
3. acetylsalicylic acid.
4. acetaminophen.

Back 1

1. Warfarin (Coumadin).
3. acetylsalicylic acid.

Front 2

The most common complication of a
venipuncture is
A. syncope.
B. hematoma.
C. thrombophlebitis.
D. embolus.

Back 2

B. hematoma.

Front 3

Antihistamines act by
A. increasing the action of histaminase.
B. altering the formation of histamine.
C. blocking the actions of histamine by
competitive inhibition.
D. interfering with the degradation of
histamine.

Back 3

C. blocking the actions of histamine by
competitive inhibition.

Front 4

Which of the following is used in the
management of a patient with grand mal
seizures?
A. Amobarbital.
B. Secobarbital.
C. Pentobarbital.
D. Phenobarbital.

Back 4

D. Phenobarbital.

Front 5

Adrenal corticosteroids
1. cause diabetes.
2. cause retention of sodium and fluid.
3. heighten the immune response.
4. decrease the immune response.

Back 5

2. cause retention of sodium and fluid.
4. decrease the immune response.

Front 6

All of the following drugs are useful in the
treatment of cardiac arrhythmias
EXCEPT
A. digitalis.
B. lidocaine.
C. procainamide.
D. aminophylline.

Back 6

D. aminophylline.

Front 7

Tetracyclines
1. have no side effects.
2. may increase susceptibility to
superinfections.
3. are safe to use during pregnancy.
4. have a wide spectrum of antibacterial
activity.

Back 7

2. may increase susceptibility to
superinfections.
4. have a wide spectrum of antibacterial
activity.

Front 8

Which of the following drugs has/have
antisialagogue properties?
1. Codeine.
2. Atropine.
3. Acetylsalicylic acid.
4. Methantheline.

Back 8

2. Atropine.
4. Methantheline.

Front 9

A patient with congestive heart failure
may have
1. epistaxis.
2. shortness of breath.
3. rhinophyma.
4. pitting edema of the ankles.

Back 9

2. shortness of breath.
4. pitting edema of the ankles.

Front 10

Which valve is most commonly affected
by rheumatic heart disease?
A. Aortic.
B. Pulmonary.
C. Tricuspid.
D. Mitral.

Back 10

D. Mitral.

Front 11

A therapeutic advantage of penicillin V
over penicillin G is
A. greater resistance to penicillinase.
B. broader antibacterial spectrum.
C. greater absorption when given orally.
D. slower renal excretion.
E. None of the above.

Back 11

C. greater absorption when given orally.

Front 12

Trismus is most frequently caused by
A. tetanus.
B. muscular dystrophy.
C. infection.
D. mandibular fracture.

Back 12

C. infection.

Front 13

Which of the following statements are
correct?
1. Narcotic and non-narcotic analgesics
are equipotent.
2. Non-narcotic analgesics do not alter
consciousness.
3. Non-narcotic analgesics are safer and
less toxic.
4. Non-narcotic analgesics produce less
side effects.

Back 13

2. Non-narcotic analgesics do not alter
consciousness.
3. Non-narcotic analgesics are safer and
less toxic.
4. Non-narcotic analgesics produce less
side effects.

Front 14

Acetaminophen in therapeutic doses
1. retards platelet function.
2. has strong anti-inflammatory
properties.
3. produces CNS stimulation.
4. has antipyretic properties.

Back 14

4. has antipyretic properties.

Front 15

Short-acting barbiturates are metabolized
mainly in the
A. liver.
B. kidneys.
C. small intestine.
D. pancreas.
E. spleen.

Back 15

A. liver.

Front 16

Acquired Immune Deficiency Syndrome
(AIDS) may be characterized by
1. candidiasis.
2. rapid weight loss and night sweats.
3. extreme malaise, fever or chills.
4. a smooth and red tongue.

Back 16

E. All of the above.

Front 17

The local anesthetic lidocaine is an
A. amide.
B. ester.
C. aldehyde.
D. acid.

Back 17

A. amide

Front 18

A major clinical problem of penicillin
therapy is its
A. high toxicity.
B. allergenicity.
C. rapid development of tolerance.
D. narrow spectrum of activity.
E. induction of nephritis.

Back 18

B. allergenicity.

Front 19

Which of the following does NOT
influence the rate of induction during
inhalation anesthesia?
A. Pulmonary ventilation.
B. Blood supply to the lungs.
C. Hemoglobin content of the blood.
D. Concentration of the anesthetic in the
inspired mixture.
E. Solubility of the anesthetic in blood.

Back 19

C. Hemoglobin content of the bloo

Front 20

Most anaphylactic reactions to penicillin
occur
1. when the drug is administered
parenterally.
2. in patients who have already
experienced an allergic reaction to
the drug.
3. within minutes after drug
administration.
4. when the drug is administered orally.
5. in patients with a negative skin test to
penicillin allergy.

Back 20

1. when the drug is administered
parenterally.
2. in patients who have already
experienced an allergic reaction to
the drug.
3. within minutes after drug
administration.

Front 21

Which of the following statements isçare
true regarding acetylcholine?
1. It is the neurotransmitter at both
sympathetic and parasympathetic
ganglia.
2. It is rapidly hydrolysed in the body by
cholinesterase.
3. It can produce both muscarinic
and nicotinic actions.
4. It is the drug of choice as an antidote
in atropine poisoning.

Back 21

1. It is the neurotransmitter at both
sympathetic and parasympathetic
ganglia.
2. It is rapidly hydrolysed in the body by
cholinesterase.
3. It can produce both muscarinic
and nicotinic actions.

Front 22

Corticosteroids may be used for the
management of
A. allergy.
B. arthritis.
C. asthma.
D. Addison's disease.
E. All of the above.

Back 22

E. All of the above.

Front 23

When used ALONE, which of the
following agents will not produce
satisfactory anesthesia?
A. Chloroform.
B. Cyclopropane.
C. Nitrous oxide.
D. Fluothane.

Back 23

C. Nitrous oxide.

Front 24

Which of the following would you
prescribe for an anxious dental patient
with a peptic ulcer?
A. Reserpine.
B. Scopolamine.
C. Silica gel.
D. Diazepam.
E. Calcium carbonate.

Back 24

D. Diazepam.

Front 25

Tetracycline will cause crown
discolouration when prescribed at the age
of
1. 6 months in utero.
2. 2 years.
3. 7 years.
4. 14 years.

Back 25

1. 6 months in utero.
2. 2 years.
3. 7 years.

Front 26

Which of the following complications
might occur after administration of a local
anesthetic agent?
1. Convulsions.
2. Nausea.
3. Respiratory depression.
4. Cardiovascular collapse

Back 26

E. All of the above.

Front 27

Unconsciousness in syncope results from
A. electrolyte imbalance.
B. neurogenic shock.
C. cerebral hyperemia.
D. cerebral hypoxia.

Back 27

D. cerebral hypoxia.

Front 28

The most effective drug for relief of
angina pectoris is
A. morphine.
B. digitalis.
C. quinidine.
D. nitroglycerine.
E. pentobarbital sodium.

Back 28

D. nitroglycerine

Front 29

The appearance of a rash, itching,
broncho-constriction and fever after the
administration of a drug are the result of
A. allergy.
B. tolerance.
C. idiosyncrasy.
D. teratogenicity.

Back 29

A. allergy.

Front 30

Diazepam (valium)
1. is a benzodiazepine.
2. is contraindicated in a patient with
glaucoma.
3. is anxiolytic.
4. produces muscle relaxation when
given orally.

Back 30

E. All of the above.

Front 31

For either nitrous oxide analgesia or
intravenous sedation using diazepam
(Valium) in a healthy adult patient, you
would require
1. that the patient be supine.
2. that the patient have no food or drink
for four hours previously.
3. that the patient possess an
electrocardiogram.
4. that emergency drugs are available.
5. that oxygen is available.

Back 31

1. that the patient be supine.
2. that the patient have no food or drink
for four hours previously.
4. that emergency drugs are available.
5. that oxygen is available.

Front 32

Prolonged use of nitrous oxide has been
shown to produce
1. abortions in females.
2. cancer in occupationally exposed
females.
3. liver disease in occupationally
exposed males.
4. birth defects in exposed females.
5. suppression of white blood cells.

Back 32

1. abortions in females.
4. birth defects in exposed females.
5. suppression of white blood cells.

Front 33

Which of the following statements is/are
true regarding diazepam?
1. Its long duration of action is partly
due to active metabolites.
2. It does not produce antianxiety
effects after intramuscular
administration.
3. Intravenous administration is more
reliable than oral.
4. Its sedative effect can be reversed by
naloxone.

Back 33

1. Its long duration of action is partly
due to active metabolites.
3. Intravenous administration is more
reliable than oral.

Front 34

For a patient with cardiovascular disease,
local anesthesia
A. affects blood pressure more than
general anesthesia.
B. affects blood pressure less than
general anesthesia.
C. is responsible for bacteremia.
D. None of the above.

Back 34

B. affects blood pressure less than
general anesthesia.

Front 35

The inorganic ion that is implicated in
primary hypertension is
A. sodium.
B. fluoride.
C. potassium.
D. magnesium.

Back 35

A. sodium.

Front 36

Which of the following can be mistaken
on a radiograph for a chronic alveolar
abscess?
A. Mental foramen.
B. Cementoma in its early stages.
C. Posterior palatine foramen.
D. All of the above.

Back 36

D. All of the above.

Front 37

Displacement of mandibular fractures is
dependent upon
1. direction of fracture line.
2. proprioceptor nerve action.
3. muscle pull.
4. tooth in line of fracture.
5. direction of blow.

Back 37

1. direction of fracture line.
3. muscle pull.
5. direction of blow.

Front 38

Which of the following is the most
important factor in the preoperative
evaluation of a patient?
A. Medical history.
B. Laboratory data.
C. Electrocardiogram.
D. Pulse and blood pressure.

Back 38

A. Medical history.

Front 39

In a standard dental cartridge (carpule)
containing 1.8ml 2% lidocaine with
epinephrine 1/100,000, the amount of
vasoconstrictor is
A. 18.0 mg.
B. 0.018 mg.
C. 1.8 mg.
D. 0.18 mg.
E. 180.0 mg.

Back 39

B. 0.018 mg.

Front 40

The mode of action of the sulfonamides
upon susceptible bacteria is by
A. inhibiting the biosynthesis of paminobenzoic
acid.
B. competing for nutrients in the tissue
environment of the microorganisms.
C. interfering with the synthesis of cell
wall protein.
D. interfering with the synthesis of folic
acid.

Back 40

D. interfering with the synthesis of folic
acid.

Front 41

Vestibuloplasty is a preprosthetic surgical
procedure used to
A. facilitate reliable impression making.
B. provide adequate posterior inter-arch
space.
C. allow placement of teeth over the
residual ridge.
D. increase the supporting surface area

Back 41

D. increase the supporting surface area

Front 42

An immediate toxic reaction to a local
anesthetic administration is
A. deterioration of the anesthetic agent.
B. hypersensitivity to the
vasoconstrictor.
C. hypersensitivity to the anesthetic
agent.
D. excessive blood level of the
anesthetic agent.

Back 42

D. excessive blood level of the
anesthetic agent.

Front 43

The use of aspirating syringes for the
administration of local anesthetics is
recommended because
1. the effectiveness of local anesthesia is
increased.
2. aspiration of blood is proof that the
needle is in an intravascular location.
3. their use removes the hazard of rapid
injection and provides a distinct
saving of time.
4. their use reduces the frequency of
accidental intravenous injection.

Back 43

D. All of the above.

Front 44

In a standard inferior alveolar nerve block,
which muscle is penetrated by the needle?
A. Buccinator.
B. Mylohyoid.
C. Superior constrictor.
D. Masseter.
E. Medial (internal) pterygoid.

Back 44

A. Buccinator.

Front 45

Lidocaine (Xylocaine)
1. is a local anesthetic agent.
2. has topical anesthetic properties.
3. is an antiarrhythmic agent.
4. has anticonvulsant properties.

Back 45

E. All of the above.

Front 46

Which of the following nerves should be
anesthetized for extraction of a maxillary
lateral incisor?
1. Nasociliary.
2. Nasopalatine.
3. Sphenopalatine.
4. Anterior superior alveolar.

Back 46

2. Nasopalatine.
4. Anterior superior alveolar.

Front 47

Which of the following is the strongest
stimulus to respiration?
A. Decrease in arterial pH.
B. Increase in arterial oxygen.
C. Decrease in arterial oxygen.
D. Increase in arterial carbon dioxide.
E. Decrease in arterial carbon dioxide.

Back 47

D. Increase in arterial carbon dioxide.

Front 48

In addition to analgesia, pentazocine
A. produces sedation.
B. reduces elevated temperature.
C. has anti-inflammatory properties.
D. produces peripheral vasoconstriction

Back 48

A. produces sedation.

Front 49

An infected root is accidentally displaced
into the maxillary sinus. Examination of
the socket reveals perforation of the sinus
lining with an oro-antral communication.
Therapy should consist of
1. antrostomy for retrieval of root.
2. closure of oro-antral communication
and antibiotic coverage.
3. antibiotic coverage and observation.
4. acrylic template to cover socket
opening and saline rinses.

Back 49

1. antrostomy for retrieval of root.
2. closure of oro-antral communication
and antibiotic coverage.

Front 50

With respect to local anaesthetics, which
of the following statements isçare correct?
A. Certain nerve fibers are more
susceptible.
B. In mixed nerves, sensory fibers are
more susceptible.
C. Anaesthetics are marketed as watersoluble
acid salts.
D. They are capable of blocking every
type of nerve tissue.
E. All of the above.

Back 50

E. All of the above.