Which of the following drugs potentiates the action

Which of the following drugs potentiates the
action of sedative drugs?
A. Digitalis.
B. Phenothiazine.
C. Propranolol.
D. Methyldopa.
E. Spironolactone.
Nitrous oxide
5. provides good muscle relaxation.
6. is non-explosive and non-flammable.
7. is a potent anesthetic.
8. provides rapid induction and recovery.
A. (1) (2) (3)
B. (2) and (3)
C. (2) and (4)
D. (4) only
E. All of the above.
Use of nitrous oxide analgesia produces
ringing in the ears as a result of
A. central nervous system reaction.
B. peripheral action on the eardrum.
C. increased pressure in the middle ear.
D. cochlea effect.
E. dysphoria.
For a patient with a history of glaucoma and
porphyria, the pharmaco-sedation technique
preferred is
A. intravenous secobarbital.
B. intravenous diazepam.
C. oral diazepam.
D. nitrous oxide.
E. intravenous thiopental.
The position of a needle in the lumen of a
vein is confirmed by
A. the color of the blood upon
aspiration.
B. rapidity of filling of the syringe upon
aspiration.
C. pain associated with vessel puncture.
D. None of the above.

What is the maximum number of cartridges
(1.8ml) of a 2 % local anesthetic solution that
can be administered without exceeding a total
dose of 300mg?
A. 2
B. 4
C. 6
D. 8
E. 10
Hydrochlorothiazide (Hydrodiuril) is used to
treat
1. hypertension.
2. angina pectoris.
3. atrial fibrillation.
4. ventricular fibrillation.
5. congestive heart failure.
A. (1) and (2)
B. (2) and (3)
C. (3) and (4)
D. (1) and (5)
Procaine (Novocaine) is an example of a local
anaesthetic which is chemically classified as
an
A. amide.
B. ester.
C. aldehyde.
D. ethamine.
E. aminide.
A lingual nerve block will NOT anesthetize
the
A. anterior two-thirds of the tongue.
B. lingual gingivae.
C. posterior one-third of the tongue.
D. floor of the mouth.
E. parasympathetic fibers to the
submaxillary salivary gland.
Cardiovascular collapse caused by a high
circulating dose of a local anesthetic is due to
A. vagal stimulation.
B. histamine release.
C. myocardial depression.
D. medullary stimulation.
Which of the following nerves should be
anesthetized for the removal of a maxillary
first molar?
1. Greater palatine.
2. Naso palatine.
3. Middle superior alveolar.
4. Anterior superior alveolar.
5. Posterior superior alveolar.
A. (1) (2) (4)
B. (1) (3) (4)
C. (1) (3) (5)
D. (2) (3) (5)
E. (2) (4) (5)
A patient has a proven allergy to para-amino
benzoic acid derivatives. Which local
anesthetic solution can be used safely?
A. Procaine hydrochloride (Novocaine).
B. Butethamine hydrochloride
(Monocaine).
C. Tetracaine hydrochloride
(Pontocaine).
D. Lidocaine hydrochloride
(Xylocaine).
After an inferior alveolar nerve block
injection, a patient would develop seventh
nerve paralysis if the injection was made
into the
A. internal maxillary artery.
B. retroparotid space.
C. internal pterygoid muscle.
D. retromandibular vein.
E. pterygoid plexus of veins.

A known insulin dependent diabetic patient
feels unwell following the administration of a
local anesthetic and becomes pale and sweaty.