1. End of 4 year OSCE
th
- Surgery -
20 – 03- 2007
2. A 50 yr old male presented with a
5 days history of malaise, fever
with chills and rigors and this
tender lump over his left shin.
(i) What is the likely diagnosis?
(ii) What important investigation would
you like to perform in this patient?
(iii) List the management principles.
3. Answer
(i) An abscess
(ii) Random/fasting blood sugar
(iii) Mx
- adequate analgesia & antipyretics
- broad spectrum IV antibiotics
- Adequate incision & adequate drainage under GA
- break into all loculi
- remove pyogenic membrane
- send pus for culture + ABST
- clean the cavity with N.saline/ Povidone Iodine (Betadine)
- Leave open , partially insert a gauze wick
4. This 35 yr old lady presented
with painful swelling of her
leg for 2 days.
(i) Name 2 likely diagnoses
(ii) Write 3 things you would
ask in her history to
differentiate between them.
(iii) Name one investigation
which enables you to come
to a definitive diagnosis?
5. (i) Cellulitis , DVT
(ii) Any preceding injury
history of DM
prolonged immobilization
Use of OCP
Varicose veins
(iii) Duplex scan of LL
6. Mx of Cellulitis
REMAIN
R = Rest
E = elevation of the limb
M = mobilization
A = Antibiotics, antipyretics, analgesia
I = Immunization against tetanus
N = Nutrition
7. Tubes
An intercostal tube connected to an underwater
seal drainage bottle given.
(i) Write 2 indications of use.
(ii) Name 2 complications of this.
(iii) After inserting this to a patient, as the HO
name 3 things you would assess in this patient.
8. (i) Indications--- 1. therapeutic – pneumo/haemothorax
2. prophylactic – post op in cardio-thoracic Sx
(ii) Complications--- 1. during insertion
2. maintenance
3. during removal
9. (iii) Pt Assessment in the ward round.
S = Subjective (ask from the pt about his complains)
O= objective (examine chest expansion, auscultation,
resp rate, whether tube is functioning)
A = Assessment (overall condition of the pt)
P= plan of management
10. Cannulas
14G- Orange – in emergencies
16G- grey
Blood transfusion
17G- white
18G- Green
Crystalloid infusion
20G- Pink
22G- Blue
24G- Yellow
26G – Purple - paediatric
11. Needles
14G- white - abscess drainage
18G- Pink
20G- Yellow
21G- green – Blood culture
22G- Black
23G- blue - IM injections/FNAC
24G –Red - SC injections
25G- orange – VV sclerotherapy
26G- Brown – Insulin SC/ Mantoux/ BCG (ID inj)
27G- Ash
29G- Dark orange
12. Neuro surgery
What’s the lesion?
Which condition
produces this
characteristic lesion?
What’s the underlying
cause for this condition?
How do you manage this
patient?
13. A hyper dense, biconvex shaped area in the right
tempero-parietal region.
Right sided, Acute Extra dural Haemorrhage
Damage to the middle meningeal artery. Parietal
bone fracture maybe the cause for this injury but
not always.
Resuscitation, HIO, craniotomy
14. What is the lesion?
What is the cause for this
lesion?
In which age group do
these occur commonly
and why?
15. Crescent shape, small hyper dense area in left
tempero- parietal region.
Left sided Acute SDH
In elderly because there subdural space is
enlarged in them due to brain atrophy.
16. What’s the lesion?
What could be the
underlying brain
condition?
What are the causes?
17. Hypodense crescentic area in left temporal area.
Left sided Chronic SDH
- Alcoholics
- child abuse
- elderly following recurrent falls
18. GCS
1. Eye opening spontaneous =4
to speech =3
to pain =2
none =1
2. Best verbal response oriented =5
confused =4
inappropriate =3
incomprehensible =2
None =1
3. Best motor response obeying =6
localizing =5
withdrawing =4
flexing =3
extending =2
none =1
19. Criteria for admission after head injury
o Altered level of consciousness
o Skull fracture
o Neurological symptoms or signs
o Difficult assessment - drugs, alcohol
o No responsible carer
20. Indications for CT scan
GCS less than 13 at any point since the injury
Suspected open or depressed skull fracture
Any sign of basal skull fracture
Post-traumatic seizure
Focal neurological deficit
If GCS ≤ 8 ,
Req intubation & ventilation
23. What’s the abnormality
that you see in this CXR?
What are the causes?
What could be the
patient presentation?
24. There’s air under the diaphragm
Perforation of a hollow viscus
- bowel perforation
- perforated peptic ulcer
- ruptured appendix
Acute severe abdominal pain, guarding and
board like rigidity
26. Small bowel Large bowel
Central position Peripheral position
Many loops Few loops
Complete rings Incomplete rings
(valvulae conniventes) (haustrations)
27. NG tubes
Measurement of the length & insertion
Uses
Therapeutic-
- for NG feeding
- decompression of stomach contents in
emergency surgery
- in gastric lavarge
- as a catheter in BPH pts
Diagnostic
- suspected oesophageal atresia
33. Uses
2 way catheters,
To measure the urine output
investigations – MCUG
to relieve an acute retention of urine
Hydrostatic reduction of an intussuception in children
3 way,
For continuous irrigation of bladder following prostatectomy
Paul’s tube (condom catheter)
In male pts with urinary incontinence
35. Double J stent
Identify the instrument
Uses;
To relieve obstruction of
the urinary tract
Prophylactically during
ESWL
To identify ureter in
certain surgeries
eg:- Endometrial Ca
How long to be kept?
< 3 months
36. Internal fixators
Indications
Intra-articular fractures - to stabilise anatomical reduction
Repair of blood vessels and nerves - to protect vascular and
nerve repair
Multiple injuries
Elderly patients - to allow early mobilisation
Long bone fractures - tibia, femur and humerus
Failure of conservative management
Pathological fractures
Fractures that require open reduction
Unstable fractures
Complications
Infection
Non-union
Implant failure
37. External fixators
Indications
Acute trauma - open and unstable fractures
Non union of fractures
Correction of joint contracture
Filling of segmental limb defects - trauma, tumour and
osteomyelitis
Limb lengthening
Complications
Overdistraction
Pin-tract infection
38. fractures
Important fractures
Colle’s – below elbow POP cast upto the metacarpal heads,
sparing the thumb
Scaphoid – “ glass holding” position
Know about;
Xray identification of Colle’s ,supracondylar, NOF
39. A patient with a POP cast to his Right
forearm in the A&E unit.
During the ward round how to assess the
cast?
Look for 6p’s of acute limb ischemia
- Pain
- pallor
- perishing cold
- paraesthesia
- paralysis
- pulseless
40. The patient has pain on passive movements of the
fingers. What is your main worry?
Compartment syndrome
What is the immediate management
Full thickness , full length splitting of the POP
elevation of the limb
immediate Fasciotomy.
CS –can also occur in circumferential full thickness
burns
- requires Escharotomy
41. A 42 yr old school teacher presents with a 3
months history of tingling and numbness of
her Right hand which is worst at night.
What is the most likely diagnosis?
Write 2 possible causes
What is the most important investigation you
would like to perform to confirm your diagnosis?
What are the management options?
43. Post op fever
1st 24 hrs of Sx
- Metobolic response to trauma
- Reactions to blood transfusions & anesthetic drugs
D2
- Lung atelectasis
D3-D5
- Local sepsis – cannula site , catheter, wound
infections
D5-D7
- DVT , leaking bowel anastomosis
>1 week
- Distant sepsis – hepatic,cerebral, deep seated
abscesses
44. ET tubes
Cuffed & uncuffed
Uncuffed – in children
Size (internal diameter mm) = Age +4
4
Male – (8-9.5) ; female – (7-8)
In place for <7 days – risk of tracheal stenosis
Prevented by doing a tracheostomy
45. Uses of ET tubes
Maintain airway
For ventilation (IPPV)
Prevent aspiration (cuffed)
Give drugs – adrenaline
- atropine
- naloxone
49. Cuffed plastic tube for tracheostomy
Indications
i. To relieve obstruction of upper airway
ii. Prolonged mechanical ventilation
iii. To remove retained secretions in LRT
complications
- Pneumothorax
- Haemorrage
- Surgical emphesema
- tube displacement
50. CPR
Changes in 2005 ALS guidelines
CPR rate – 30:2 ( not 15: 2)
All 3 DC shocks – 360J each
51. Fitness for surgery
From the Hx
any co-morbidities (DM,BA,IHD) & their control
degree of dyspnoea if present (NYHA)
Drug history
past hx of GA and recovery
smoking , alcohol
symptoms of anaemia