Anesthesiology Flashcards

1
Q

Local anesthesia blocks ___ sensations

A

Motor and sensory

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

LA blocks ___ channels intracellular or extracellular

A

Na channels

From outside to inside (intracellular)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

Water soluble form

A

Ionized form

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

Carpules are made from what form

A

Water soluble to be in an injectable form

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

<7 ph - acidic = ____ inc or dec Hydrogen

> 7 ph - basic = ______

A

Increase

Decrease

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

Determines acidity of a compound

A

PKa

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

Low pka = ____ acidic or basic = more hydrogen or less

A

More acidic

More hydrogen

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

Lidocaine pKa

A

7.8

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

If tissue is acidic LA will be more or less effective

A

Less effective

More water sol

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

Order of loss of sensation

A

Si PaT nag ToPS

Pain
Temp
Touch
Pressure
Skeletal muscle tone
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

Anesthetic adverse rxns (2)

A

Toxicity

Allergies

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

Causes of toxicity (3)

A

Rapid induction of LA
vessel deposition
Overdosage

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

LA can cause allergic rxns due to (2)

A

Methylparaben

Sodium bisulfite

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

Management of Syncope

A

Tredelenburg

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

Maximum carpule for normal px

A

7

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

Preservative of LA

A

Methylparaben

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

Antioxidant of vasoconstrictor

A

Sodium bisulfite

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

Ester has highest incidence of LA allergic rxn due to ____

A

PABA metabolite - similar to methyl paraben

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

Effects of vasoconstrictor (3)

A

Inc duration of effect of LA
Reduce toxicity
Reduce bleeding

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
20
Q

Max dosage of vasoconstrictor

A

0.2 g or 200 mcg

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
21
Q

Max dosage of vasoconstrictors for cardiovascular compromised px

A

0.04 mg

40 mcg

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
22
Q

All LA are vasodilators except

A

Cocaine

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
23
Q

Brand name of lidocaine

A

Xylocaine

Lignocaine

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
24
Q

Brand name of prilocaine

A

Citanest

25
Q

Brand name of mepivacaine

A

Carbocaine

26
Q

Brand name of bupivacaine

A

Marcaine

27
Q

Brand name of etidocaine

A

Duranest

28
Q

Brand name of articAine

A

Zorcaine

Septocaine

29
Q

Short duration of action amide

A

3% mepicavaine

30
Q

LA contraindi to kids

A

Bupivacaine

31
Q

LA rapidly metabolized in he body

A

Articaine

32
Q

Longest acting amides (2)

A
Bupivacaine
Etidocaine (not available in the market)
33
Q

Amide LA is combined to produce topical anesth

A

Lidoc

Priloc

34
Q

Most common LA

A

Lidocaine

35
Q

Amide safe for children and px with heart problems

A

Mepivacaine

36
Q

Brand name of procaine

A

Novocaine

37
Q

Brand name of benzocaine

A

Anbesol

38
Q

Generic name of metycAine

A

Piperocaine

39
Q

Brand name of piperocaine

A

Metycaine

40
Q

Brand name of tetracaine

A

Dicaine

41
Q

Needle lengths

A

Ultrashort - <20 mm
Short - 20 mm
Long - 32 mm

42
Q

Needle dimension

A

30 g - small
27
25 g - large

43
Q

Most common site of fracture of needle

A

Hub

44
Q

Needle used for Md. block in pedia

A

27 gauge

Short needle

45
Q

Needle used for mandiblock in adults

A

25/ 27 gauge

Long needle

46
Q

Needle used for intralig injection

A

30 gauge

Short needle

47
Q

Level of needle when mandiblock in children

A

Below occlusal plane 45degrees

48
Q

Level of needle when mandiblock in adults

A

Parallel to occlusal line

49
Q

Infraorbital block aka

A

True asan block

50
Q

Infraorbital nerve block include ___ and ____

A

Asan - common

Msan - sometimes

51
Q

Complication common of psan

A

Hematoma

52
Q

Lesser palatine nerve aka

A

Post palatine nerve

53
Q

Blocks ant 1/3 of hard palate

A

Nasopalatine nerve block

54
Q

Nasopalatine nerve aka

A

Nerve of scarpa

55
Q

Cyst seen in incisive foramen

Rx:_____

A

Nasopalatine duct cyst

Heart shape

56
Q

Greater palatine nerve block aka

A

Anterior palatine n block

57
Q

Gow gates blocks (5)

A
IAN
Lingual n
Auriculotemporal
Mylohyoid n
Long buccal
58
Q

Closed mouth mandibular blocking

A

Akinosi vazirani technique

59
Q

Gow gates blocking aka

A

True mandiblock