Preop assessment Flashcards

1
Q

Why do you do pre-op assessment?

A
Identify risk to airway, anaesthetic and post op risks
Modify risks
Make decisions on medication
Give advice on fasting
Make decisions on post-op care
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2
Q

When do you do the pre-op?

A

2-4 weeks before surgery so it’s long enough to arrange any further investigations, but soon enough to avoid any interim medical problems

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3
Q

History

A
What is the procedure? 
PMH
Previous surgery/anaesthetics + any problems 
Systems review
Medication
Allergies
SH 
FH
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4
Q

What problems might you ask about when asking about previous surgery?

A

Airway/intubation problems
Reaction to drugs
N/V post op

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5
Q

What systems will you review?

A

Respiratory
Cardiac
Renal
Endocrine

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6
Q

What will you ask about socially?

A

Smoking
Alcohol - are they at risk of withdrawal?
Recreational drugs
Support at home/work

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7
Q

What would you be looking out for in FH?

A

Malignant hyperpyrexia

Myasthenia gravis

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8
Q

What is the problem with malignant hyperpyrexia?

A

Pt becomes dangerously hyperthermic when administered with certain volatile agents

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9
Q

What score is calculated?

A

American society anestheisa

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10
Q

What are the stages of ASA and what do they stand for?

A

1 - healthy patient, uncompromised
2 - minor disease
3 - severe systemic disease
4 - severe systemic disease with a constant threat to life

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11
Q

What counts as minor surgery?

A

Skin lesions

Breast abscess

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12
Q

Intermediate surgery

A

Varicose veins
Knee arthroscopy
Inguinal hernias (primary)

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13
Q

Major

A

Thyroidectomy
Colonic resection
Joint replacement
Adrenalectomy

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14
Q

Major plus

A

Cardiac surgery

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15
Q

What do you do after taking a history?

A
Obs 
Airway atm 
CV assessment
Resp
Abdo potentially
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16
Q

What counts as obs?

A

HR
BP
Temp
O2 sats at rest

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17
Q

What counts as airway assessment?

A

Neck extension/flexion
Mouth opening
Mallapati
Jaw protrusion

18
Q

What questions are you going to ask them for the airway assessment?

A

Can you touch your chin to your chest?
How far can you open your mouth?
Can you get your bottom teeth in front of your top teeth?

19
Q

What grading score is used to assess how easy it will be to put an endotracheal tube into the mouth?

A

Mallampati grading

20
Q

Mallamapti score 1

A

Hard palate
Soft palate
Uvula
All pillars

21
Q

Mallamapti score 2

A

hard palate
Soft palate
Uvula

22
Q

Mallamapti score 3

A

Hard palate and soft palate

23
Q

Mallamapti score 4

A

Hard palate only seen

24
Q

What do you do after this scoring?

A

Special routine tests e.g. FBC, clotting, renal function, lung function, ABGs, ecg, kidney function tests

25
What is the age cut of after which you'd definitely arrange an ECG?
65
26
If someone is taking BP meds, what tests do you need to do?
U and E
27
If someone is taking antiplatelet meds, what tests do you need to do?
FBC
28
If someone is taking anticoagulants meds, what tests do you need to do?
FBC and coagulation
29
If someone is taking diabetes meds, what tests do you need to do?
HbA1c
30
If someone is taking thyroid meds, what tests do you need to do?
TFTs
31
If someone is taking anaemia meds, what tests do you need to do?
FBC
32
When do you do a pregnany test?
If pt agrees to ad could be pregnant
33
When do you do a HbA1c test?
Only if known diabetic and you don't have a result in the last three months
34
When do you do a sickle test?
only if there is FH
35
What meds might need modification during surgery?
Blood thinners Diabetic meds Antihypertensives
36
Which antihypertensives need to be stopped?
Omit ACEi
37
What is the general fasting advice?
Nil by mouth for 2 hours | Except for 30ls water with tablets
38
Clear fluids
up to 2 hours before
39
Solid food including milk
up to 6 hours
40
What is the exception to this??
Delayed gastric emptying | emergency surgery
41
If a diabetic patient has emergency surgery, what insulin do you give them?
variable rate insulin e.g. Actrapid??
42
??
Look up the other things about diabetes and surgery