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Anaesthesia > Anaesthesia technique and complications > Flashcards

Anaesthesia technique and complications Flashcards

0
Q

What length needle is needed for ID block?

A

35mm

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1
Q

What length needle is needed for an infiltration?

A

25mm

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2
Q

How do you perform a long buccal?

A

Supra periosteal distal and buccal to last standing molar 2-4mm deep

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3
Q

What are the local complications arising form LA?

A 
Pain on injection
Post injection pain
Failed anaesthesia
Vascular problem
Infection 
Interfere to with wound healing
Self inflicted trauma
Trismus
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4
Q

What can cause pain on injection?

A

Intra epithelial infection and sub periosteal injection
Too rapid
Direct contact with nerve trunk

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5
Q

What neurological effect may arise?

A 
Prolonged anaesthisia due to nerve trunk damage
Facial paralysis
Auditory disturbance
Visual disturbance
Unilateral paralysis
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6
Q

Why may you get a Unilaterla paralysis?

A

Intravasculae injection

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7
Q

Which vascular problems may arise?

A

Intravascular injection
Intravenous infection
Heamatoma
Intrarterial

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8
Q

What will happen with an intra arteries injection?

A

Localalised blanching

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9
Q

What is the effect of LA in wound healing?

A

LA decreased cell motility

Adrenaline reduced Oxyhen tension

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10
Q

What are the systemic complications arising from LA?

A 
Psychogenic effects 
Toxicity
Drug interactions 
Allergy
Methagammaglobunamia
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11
Q

What causes methagammaglobunaemia?

A

Prilocaine metabolites convert iron in Hb to ferric state this reduces oxygen carrying capacity

Can also occur with Articaine and benzocaine

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12
Q

What is the effect of lidocaine in suzamethinium?

A

Lidocaine prolongs it

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13
Q

What are the signs and symptoms of mild LA overdose ?

A 
Talkative
Apprehension
Excitability
Sweating
Elevated BP Hr RR
Disoritntion
Light headed
Nervous
Twitching sensation
LOC drowsiness
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14
Q

What are the signs of moderate to severe overdose?

A

Tonic clonic seizure followed by generalised CNS depression and depressed BP, HR, RR

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15
Q

What do you do in mild over dose?

A

This has a slow onset of more than 5mins
Oxygen
Monitor and record vital signs

16
Q

How do you manage a severe overdose?

A 
Vert rapid onset less then one minute
Mangage convulsion 
And consider anticonvulsant 
ABC
Hospital

Anaesthesia (11 decks)

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