How to Assess the Post-operative Surgical Patient – OSCE Guide
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Table of Contents
The ability to assess a post-operative surgical patient is an important skill to develop during medical school and your foundation years. It is commonly tested in OSCEs and almost all foundation year doctors will have at least one surgical rotation. Furthermore, assessing the post-operative surgical patient is also assessed at postgraduate surgical interviews.
This article will provide you with:
A structured format for carrying out a thorough review of the surgical patient – with a worked example for use in an OSCE setting.
A structure for categorising post-operative complications.
OSCE stations vary in their focus:
A-E assessment of an acutely unwell surgical patient [ABCDE approach]
A broader assessment of a post-operative surgical patient [SHE BOXED approach]
A-E assessment of an acutely unwell surgical patient 1,2,3
As with all OSCE stations, you should first introduce yourself, confirm the patient’s details and gain consent to proceed. The examiner of the station may then ask you to describe how you would approach an acutely unwell surgical patient.
An example of a response could be:
“I would approach the patient using a structured A-E approach according to Advanced Life Support guidelines, initiating immediate management as required and escalating appropriately.”
The A-E assessment is not in the scope of this article, however, it is an essential skill that all doctors should possess. A thorough guide for A-E assessment can be found here.
Once the A-E assessment has been completed and the patient has been stabilised, it is important to think more broadly about a thorough surgical assessment.
In an OSCE, after performing an A-E assessment, it is often sensible to suggest escalating to a senior member of the team.
The examiner will then often state “Your senior is on the way”.
Having been through the A-E assessment, you may have decided the patient needs to return to theatre urgently. You may be asked at this point “What would you do whilst you wait for your senior?”
A good answer in this situation would be:
Consent utilising the correct consent form (if you are trained to do so)
Book the patient onto the emergency theatre list
Inform the theatre coordinator and on-call anaesthetist
A broader assessment of a post-operative surgical patient [SHE BOXED approach] 2,4
It may be that in an OSCE scenario you complete your A-E assessment and the examiner then asks you “now what would you do?”. If there is no clear indication to take the patient to theatre for an emergency operation, a further, more detailed assessment is required. In this situation, the SHE BOXED approach can be utilised.
SHE = Summary of History and Examination findings
“I would take a focused history from the patient and ask particularly about…”
A useful structure for quickly covering the salient features of a surgical history is the acronym AMPLE:
A – allergies
M – medications
P – past medical history
L – last eaten/had something to drink (patients should not have had something to eat in the 6 hours prior to an operation and should not have had water in the 2 hours before an operation)
E – events leading up to admission/current situation/current positive examination findings (e.g tender at McBurney’s point)
Tip for surgical patients: Review the operation note and anaesthetic chart. Was the operation straightforward? Were there any complications? What were the post-operative instructions? What drugs were used during the operation? How has the patient been in recovery?
You then need to complete a focused examination of the relevant system. For example, if the patient is post-thyroidectomy then it would be worth stating that you would want to carry out a complete neck examination, inspecting for any visible swelling/airway compromise (e.g. in the event of a haematoma).
B = Bedside tests & bloods
Laboratory tests (e.g. FBC,U&Es,LFTs,Clotting, Group & Save)
Gases (e.g. arterial blood gas or venous blood gas)
Tip: Isolated figures often are difficult to interpret. Therefore the TREND in blood test values and observations is important to pay attention to.
O = Orifices
Are there any results for:
Swab results (e.g. from surgical site/MRSA status/previous operations)
Tip: Work from the head downwards to help remember these! Also, don’t forget the TREND in the drain or catheter output.
X = Xray, imaging and special tests
E = Escalation plan
Is there a documented escalation plan? Would this patient be appropriate to receive HDU or ITU level care?
Who should you escalate to within your team? What other specialities should you escalate to (for example critical care team, medical registrar, anaesthetics etc)?
Tip: What organ support may be required from HDU/ITU (e.g. non-invasive ventilation/inotropic support/intubation)?
D = Do not attempt CPR (DNACPR) status
Does the patient have a valid DNACPR form in place? Is this something worthwhile highlighting with seniors to discuss?
You are the on-call doctor and are asked to see a 61-year-old male who is day 3 post laparoscopic cholecystectomy. He has spiked a temperature of 38 degrees celsius and is tachycardic at 120bpm.
How would you approach this situation?
In an OSCE you may initially state…
“I would approach the situation using a structured A-E approach, initiating immediate management to stabilise the patient. If required, I would also escalate appropriately.”
After a provisional A-E assessment, the patient is deemed stable. How would you now approach performing a comprehensive post-operative assessment?
Summary of history and examination findings (SHE)…
“I would take a history, focusing on the patient’s allergies, medications, past medical history and when they had last eaten or had something to drink. In addition, I would clarify the recent events of the hospital stay, including admission date, the current diagnosis and any operation that has taken place. With regard to the surgery, I would want to review the operation note for post-operative instructions and evidence of complications. In addition, I would want to read over the most recent ward review. Given that this patient has undergone gastrointestinal surgery, I would focus my examination on their gastrointestinal system.”
“I would review the patient’s recent bedside observations, input/output charts, imaging and laboratory results (including blood tests and microbiology results). I would also ensure the patient had a valid group and save, should they need to return to theatre.”
“If the patient was potentially in need of HDU/ITU input, I would clarify the escalation plan with senior team members and ensure it was discussed with the patient and family as appropriate. I would also check if a DNA CPR form was present and if not, consider if this needed further discussion with senior team members and the patient/family.:
“Based on the findings of my assessment, I would then formulate a differential diagnosis and management plan accordingly.”
Title: General Surgery Review
Doctor name and role: Rakesh Mistry FY2
Asked to see patient regarding temperature (38 °C) and tachycardia (120bpm).
Able to complete sentences
No added breath sounds
SpO2 96% on 15L O2
Reduced breath sounds at both lung bases
Portable chest x-ray ordered
Peripheral capillary refill time approx 3 seconds
Pulse 120 bpm regular
BP 97/63 mmHg
Temperature 38 ºC
2 large IV bore cannula inserted – 500mls Hartmann’s bolus administered
FBC/U&E/CRP/LFT/Clotting/Group and Save
Heart sounds normal on auscultation
ECG – sinus tachycardia 120bpm
Blood sugar 6
Pupils equal and reactive
Abdomen tender around surgical site with associated guarding
Surgical site looks healthy with no evidence of breakdown
Summary of History and Examination
Allergies – NKDA
Past medical history:
Type 2 diabetes mellitus
Last intake of food/fluid:
Last ate 7 hours ago
Last had water 3 hours ago
Admitted with epigastric discomfort and vomiting, Murphy’s positive
CT abdomen: likely cholecystitis secondary to gallstones
Started on IV Abx, analgesia and IV fluids
Underwent laparoscopic cholecystectomy on emergency list under Mr Wan
Operation note: Difficult procedure – extended operative time however no complications. No drain in situ.
Post-operative instructions: Abx for 1/52, analgesia, can eat and drink, home when mobilising
Day 3 post laparoscopic cholecystectomy for gallstone cholecystitis
Seen on ward round – some mild abdominal tenderness
FY1 review (evening): patient vomiting, bloated and becoming tachycardic 110bpm. Patient yet to mobilise.
Bedside (previous results in brackets):
SpO2 96% 15L O2 (SpO2 86% 2L O2)
RR 23 (16)
BP 97/63 mmHg (105/70 mmHg)
HR 120 sinus tachycardia (95 bpm)
06/01: Hb 130, WCC 15, U&Es and clotting awaited from this afternoon
Blood cultures – taken earlier this afternoon. No previous results.
Arterial blood gas on 15L O2:
PO2 19.3 kPa
pCO 5.9 kPa
HCO3 27 mmol
No sputum, wound or faeces samples
Catheter in situ – urine output past 3 hours in ml/kg: 1/0.8/0.4
No drain in situ
Portable CXR ordered now – awaited
CT abdomen 01/01: cholecystitis secondary to gallstones
Previous endoscopy (2002): gastritis
Discussed on ward round this morning – would be for HDU care and potentially inotropic support if required
DNACPR status: No DNACPR status recorded
Day 3 post laparoscopic cholecystitis – hypotensive, tachycardic, pyrexial and vomiting (guarding around surgical site).
Impression: Likely anastomotic leak post laparoscopic cholecystectomy
Ensure “Sepsis 6” has been completed in light of septic picture
Assess response to 500mls IV Hartmans
Inform surgical registrar – will need senior review ?return to theatre
Inform anaesthetics and theatre co-ordinator if surgical registrar believes likely to return to theatre – may need HDU/ITU bed post-operatively for possible inotropic support
Get consent form ready for registrar arrival
FY2 General Surgery
Surgical risk factors4,5
When assessing any patient, it is important to have an awareness of possible surgical complications that may affect them. Each patient’s risk of surgical complications differs depending upon the presence or absence of various factors. Below are two different ways of applying a structured approach to considering surgical risk factors.
For example: “You are called to see an obese diabetic 50-year-old patient following their open mesh inguinal hernia repair. The patient is 3 days post-op and is complaining of pain around his surgical site in his groin. The nurse reports some swelling at the site and a foul odour.”
Pre-operative factors – diabetic and obese patients are more likely to develop surgical site infections and wound breakdown
Peri-operative – the operation was completed open and with a mesh. An open wound is more likely to breakdown in an obese patient and the mesh is a foreign material which increases the possibility of infection.
Post-operative – What were the post-operative instructions on the operation note? Did the patient receive antibiotics?
Another simple way of categorising these risk factors is: