Local And General Anaesthesia Flashcards

1
Q

Gow Gates and Akinosi techniques are for

A

Intraoral Mandibular anaesthesia

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2
Q

The Needle is inserted and directed ……… to the Lateral pterygoid plate below foramen ovale for extraoral mandibular anaesthesia.

A

Posterior

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3
Q

The Needle is inserted and directed ……… to the Lateral pterygoid plate into the pterygomandibular fossa for extraoral maxillary anaesthesia.

A

Anterior

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4
Q

Example of long acting local anaesthetic is……..

A

Etidocaine - 200 mins

Bupivacaine - 180 mins

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5
Q

Theories of Local anesthetic action are

A
  1. Membrane Expansion Theory
  2. Calcium Displacement Theory
  3. Electrical Potential Theory
  4. Specific Receptor Theory (most accepted Theory)
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6
Q

In hemophilia the technique of local infiltration applied is ………

A

Intraligamentary (Intraosseous technique) the solution is deposited in the depth of gingival sulcus.

the needle is inserted APICALLY into the bone until resistance is met.

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7
Q

Adrenaline should not be combined with which local anaesthetic?

A

Cocaine (natural local anaesthetic) has vasoconstrictor action of increases vasoconstrictive action of Adrenaline. Lethal in case of cocaine abusers, they’re called Walking Time Bombs.

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8
Q

Maximum dose of Lidocaine without Adrenaline is

A

4 mg/kg body weight not exceed 300 mg.

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9
Q

Maximum dose of Lidocaine with vasoconstrictor is

A

7 mg/ kg body weight should not exceed 500mg

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10
Q

Gate Control Theory was proposed by

A

Melzack and Wall (1965)

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11
Q

the amount of vasoconstrictor in 1 ml of 2% lidocaine with 1: 2,00,000 adrenaline is

A

0.005 mg

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12
Q

Muscle pierced by needle when giving interior alveolar nerve block is

A

Buccinator

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13
Q

Which muscle is pierced by needle while giving interior alveolar nerve block?

A

Buccinator

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14
Q

A bilateral Mandibular block

A

is dangerous because of Tongue fall but NOT CONTRAINDICATED.

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15
Q

General Anaesthesia techniques should be used in oral surgery

A

Nasoedotracheal Tube with throat pack

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16
Q

Long acting but toxic LA is

A

Dibucaine

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17
Q

Which drug is used to prevent Laryngospasm due to GA

A

Succinylcholine

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18
Q

Absolute contraindication for the use of local anaesthetic is

A

Hypersensitivity to the drug

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19
Q

Inferior alveolar nerve block is absolutely contraindicated in patients suffering from -

A

Hemophilia

Inferior alveolar and posterior superior alveolar should be avoided due to possibility of dissecting hematoma. Factor 8 replacement therapy indicated and Interligamentary Technique is preferred.

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20
Q

Which nerve fibre are sensitive to LA

A

C Fibres

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21
Q

Possible Side effects of systemic absorption of Lidocaine

A

Tonic Clonic Convulsions
Decreased Cardiac output
Respiratory Depression

22
Q

Lidocaine is used more commonly in dentistry because

A

Causes lesser incidences of allergic reaction

23
Q

La with adrenaline is absolutely contraindicated in

A

Hyperthyroidism

24
Q

When blocking a nerve containing both Motor and sensory fibres , the last functional property lost is

A

Proprioception
technically it’s Skeletal Muscle Tone.

First sensation lost is PAIN

25
Q

Improper Needle insertion during inferior alveolar nerve block causes

A

Facial nerve Paralysis

also , Hematoma and Trismus

26
Q

Improper Needle insertion during inferior alveolar nerve block causes

A

Facial nerve Paralysis

also , Hematoma and Trismus

27
Q

Akinosi Vazarani technique is a …. mouth technique

A

Closed

28
Q

Hematoma formation is more common with

A

Posterior Superior alveolar Nerve Block

29
Q

Toxicity of local anaesthesia is reversed by

A

IV Barbiturates

30
Q

Prilocaine is safer than lignocaine (True or False)

A

True

31
Q

Onset of Lidocaine

A

3-5 minutes

32
Q

Sedatives used in dentistry

A

Benzodiazepines

33
Q

action of Adrenaline is potentiated by

A

Halothane
Ethyl Chloride
Cyclopropane

34
Q

Actions of Long acting Muscle Relaxants used in GA Maybe terminated by using…..

A

Neostigmine

35
Q

The cause of sensation of tissue tearing during local anaesthesia administration is due to

A

Barb on the Needle

36
Q

Increase incidence of reaction to LA will occur by

A

rapid Rate of injection

37
Q

Excess plasma levels of Lignocaine can cause cardiovascular collapse due to

A

Myocardial Depression

38
Q

the LA with sympathomimetic activity

A

cocaine

39
Q

which respiratory condition is most alarming during patient sedation in Dental clinic

A

Apnea

40
Q

Onset of Lidocaine action is

A

3-5 minutes

41
Q

Side effects of systemic absorption of Lidocaine

A

Tonic Clonic Convulsions
Decreased Cardiac Output
Respiratory Depression

42
Q

Which is the suitable anesthetic for a hypertensive patient suffering from a heart disease

A

Prilocaine and Felypressin

43
Q

Action of Procaine is terminated by

A

Metabolism in the liver and by pseudo cholinesterase in the plasma

44
Q

most common complication occuring due to GA within first 24 hours after surgery is

A

Atelectasis

45
Q

Most significant adverse consequences of intravenous LA is

A

Seizures

46
Q

most common LA combination used is

A

1: 80,000 Xylocaine HCL

47
Q

Sodium Meta bisulfite in LA acts as a

A

Reducing Agent

48
Q

Maximum allowable dose of 2% lidocaine with 1:1ooooo Epinephrine for a child of 40 lbs is

A

120 mg

49
Q

Which combination forms daycare Anaesthesia

A

Fentanyl
propofol
isoflurane

50
Q

Kelsey Fry Technique refers to remocal in

A

Impacted Mandibular 3rd Molars

51
Q

nerves anesthetized in incisive Nerve block are

A

incisive and mental nerve

52
Q

In a patient with Trismus, technique that will block mylohyoid nerve, incisive nerve and long buccal nerve

A

Akinosi Vazarani technique