AWABS - Day 2 SBA questions

Question 1

Size of filter required for phenytoin, HME and epidurals

Answer 1

0.2 microns

Question 2

Factors which result in lower doses of propofol being required for induction

Answer 2

Lower intravascular volume
Brain susceptibility to propofol

Question 3

Hormones released from anterior pituitary

Answer 3

ACTH
TSH
FSH
LH
GH
Prolactin

Question 4

Hormones released from posterior pituitary

Answer 4

ADH
Oxytocin

Question 5

How many times can an LMA be used before it must be disposed of (sterilised between uses)

Answer 5

40

Question 6

ASA if patient had MI in last 3 months

Answer 6

4

Question 7

ASA if patient has ever had MI

Answer 7

3

Question 8

Which nerves are blocked using ankle block

Answer 8

Saphenous nerve

Question 9

Normal Thyromental distance

Answer 9

In neck extension should be > 6.5 cm

Question 10

Normal Sternomental distance

Answer 10

In neck extension should be > 12.5 - 13.5 cm

Question 11

Cormack classification

Question 12

Lehane classification

Question 13

Layers to pass through for lumbar epidural (+ spinal)

Answer 13

Skin
Subcutaneous tissue
Supraspinous ligament
Interspinous ligament
Ligamentum flavum

(Dura mater, arachnoid mater, pia mater)

Question 14

Answer 14

Question 15

Implications for anaesthesia if patient has prolonged QT interval on ECG

Answer 15

Anaesthesia can further prolong QT interval and precipitate torsades de pointes

Hypotension can be difficult to manage

Many commonly used drugs can further prolong QT

Magnesium can be helpful

Question 16

Drugs which can prolong QT interval

Answer 16

Sevoflurane
Ondansetron
Clarithromycin / Erythromycin
Ciprofloxacin
Ephedrine
Phenylephrine
Dobutamine
Adrenaline
Noradrenaline
Sotalol
Amiodarone
Most antidepressants

Question 17

Electrical symbols

Answer 17

Question 18

Components of capnograph trace

Answer 18

Question 19

4 causes for sudden increase in EtCO2

Answer 19

Question 20

Sellick’s manoeuvre

Answer 20

Name for cricoid pressure

Disadvantage - makes laryngoscopy, intubation and mask ventilation more difficult

Question 21

Double burst stimulation

Answer 21

Question 22

Nerves which can be injured when in the prone position

Answer 22

Supraorbital nerve
Infraorbital nerve
Femoral nerve in inguinal region
Ulnar nerve at medial epicondyle

Question 23

Seddon’s classification of nerve injury

Answer 23