MBBS OSCE · Dermatology / Wound Care
OSCE — wound healing phases, TIME assessment, and chronic ulcer first-line care
An 8-minute OSCE station on the phases of wound healing, TIME/wound-bed preparation, differentiating venous/arterial/neuropathic ulcers, and first-line management including compression only when arterial supply is adequate.
8 min stationSource-verified ·
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Exam tags
NEET-PGINICETUSMLEPLABMRCP
Brief (to candidate)
A 68-year-old with obesity and varicose veins has a medial gaiter-area ulcer for 4 months with fibrinous base and surrounding haemosiderin. Dorsalis pedis pulses are palpable; ABPI is 1.0. A second patient has a punched-out toe ulcer with absent pulses. You have 8 minutes to stage healing biology, classify ulcer type, and plan evidence-based care.[11][14]
Candidate instructions
- Name the phases of wound healing and what stalls chronic wounds.[2]
- Apply TIME (Tissue, Infection/Inflammation, Moisture, Edge).[8]
- Differentiate venous, arterial, neuropathic ulcers clinically.[11][10]
- State that compression requires prior perfusion assessment (20% of leg ulcers have arterial disease).[11]
- Outline dressing principles, infection signs, and red flags.[14]
Examiner checklist (mark each domain / 10)
| Domain | Key actions expected |
|---|---|
| Healing phases | Haemostasis → inflammation → proliferation (granulation/epithelium) → remodelling; chronic wounds stall in inflammation with biofilm/protease excess[1][2][4] |
| TIME framework | T non-viable tissue (debride as appropriate); I infection/inflammation control; M moisture balance (not macerated, not desiccated); E edge advancement / address epibole & aetiology[8] |
| Ulcer types | Venous: medial gaiter, sloped edges, haemosiderin/lipodermatosclerosis; arterial: distal/toes, punched-out, pain, poor pulses; neuropathic: pressure points, insensate foot (diabetes)[7][10][11] |
| Vascular assessment | Palpate pulses; assess arterial perfusion before compression — Nelson: 20% of people with leg ulcers have arterial disease; Bonkemeyer Millan: arterial disease is a poor prognostic sign. Numeric ABPI bands are local protocol, not cited abstracts.[11][14] |
| Venous ulcer care | Compression therapy cornerstone if arterial supply OK; elevation, address oedema, moist wound healing dressings; treat infection if clinical cellulitis[7][11] |
| Nutrition / host | Protein-calorie status, glycaemic control, smoking cessation, pressure offloading for neuropathic ulcers matter for closure[5][10] |
| Red flags | Acute ischaemia, rapidly progressive soft-tissue infection/necrotising features, malignant transformation suspicion (Marjolin), invasive diabetic-foot infection[14][10] |
Model key actions
- Explain stalled inflammatory phase biology in chronic ulcers and use TIME to structure care.[1][8]
- Diagnose venous leg ulcer and apply compression only after confirming adequate arterial supply.[7][11]
- Do not compress the arterial punched-out ischaemic ulcer — urgent vascular pathway. Singh: specialist clinics use Doppler ultrasound and ankle-brachial indices.[10][11]
Common errors
- Applying tight compression without arterial assessment.[11]
- Treating every exudative wound with prolonged systemic antibiotics without clinical infection.[8]
- Ignoring offloading in diabetic foot ulcers.[10]
- Leaving chronic wounds without addressing underlying aetiology (venous hypertension, ischaemia, pressure).[8][14]
- Missing red-flag infection / ischaemia.[14]
References9ShowHide
- [1]Wilkinson HN, Hardman MJ. Wound healing: cellular mechanisms and pathological outcomes. Open biology, 2020.PMID 32993416
- [2]Wang PH, Huang BS, Horng HC, Yeh CC, Chen YJ. Wound healing. Journal of the Chinese Medical Association : JCMA, 2018.PMID 29169897
- [4]Almadani YH, Vorstenbosch J, Davison PG, Murphy AM. Wound Healing: A Comprehensive Review. Seminars in plastic surgery, 2021.PMID 34526860
- [5]Ghaly P, Iliopoulos J, Ahmad M. The role of nutrition in wound healing: an overview. British journal of nursing (Mark Allen Publishing), 2021.PMID 33733851
- [7]Marston W, Tang J, Kirsner RS, Ennis W. Wound Healing Society 2015 update on guidelines for venous ulcers. Wound repair and regeneration, 2016.PMID 26663616
- [8]Sibbald RG, Orsted H, Schultz GS, Coutts P, Keast D. Preparing the wound bed 2003: focus on infection and inflammation. Ostomy Wound Manage, 2003.PMID 14652411
- [10]Singh N, Armstrong DG, Lipsky BA. Preventing foot ulcers in patients with diabetes. JAMA, 2005.PMID 15644549
- [11]Nelson EA Venous leg ulcers. BMJ clinical evidence, 2011.PMID 22189344
- [14]Bonkemeyer Millan S, Gan R, Townsend PE. Venous Ulcers: Diagnosis and Treatment. Am Fam Physician, 2019.PMID 31478635