The OET Writing sub-test is one of the most challenging components for healthcare professionals, particularly when it comes to writing referral letters. Unlike general English tests, OET Writing requires you to demonstrate professional medical communication skills — transforming case notes into a clear, concise, and clinically appropriate letter. This comprehensive guide walks you through every step of writing a Band B (350+) referral letter, from understanding the task to polishing your final draft.
Table of Contents
- Understanding the OET Writing Task
- The Six Assessment Criteria Explained
- Standard Referral Letter Structure
- Step-by-Step: From Case Notes to Letter
- Sample OET Referral Letter (Band B)
- Key Language and Phrases
- Common Mistakes to Avoid
- Pro Tips for Exam Day
- Free OET Writing Checklist
- Frequently Asked Questions
Understanding the OET Writing Task
The OET Writing task presents you with a set of medical case notes and asks you to write a letter to another healthcare professional. The letter type varies — it could be a referral letter, a letter of transfer, a discharge letter, or a letter to advise or inform. You have 45 minutes total: 5 minutes for reading and planning, and 40 minutes for writing.
Your task is not simply to reproduce the case notes. You must transform them into a professional letter that:
- Achieves its purpose (e.g., requesting further care, updating on treatment)
- Selects and prioritises relevant information from the case notes
- Uses appropriate medical and professional language
- Follows standard letter conventions
- Is concise (180-200 words) and well-organised
Important
You must not copy directly from the case notes. The notes are written in abbreviated, telegraphic style. You need to convert these into full, grammatically correct sentences appropriate for professional communication. Abbreviations should be expanded, and informal language should be made formal.
The Six Assessment Criteria Explained
Understanding what the examiner is looking for is half the battle. The OET Writing sub-test uses six criteria, each scored from 0 to 7. You need a minimum combined score of 350 out of 500 to achieve Grade B.
| Criterion | What It Measures | Key Tips |
|---|---|---|
| 1. Purpose | Whether the letter immediately makes the purpose clear and the reader can understand what is expected | Include a clear purpose statement in the opening paragraph. Use phrases like "I am writing to refer..." or "I am writing to update you on..." |
| 2. Content | Whether all relevant information is included and irrelevant information is omitted | Only include information the reader needs to continue care. Leave out routine details and information the recipient already knows. |
| 3. Conciseness & Clarity | Whether the letter is easy to follow and free of unnecessary words or repetition | Aim for 180-200 words. Every sentence should serve a purpose. Avoid redundancy. |
| 4. Genre & Style | Whether the tone, register, and vocabulary are appropriate for a professional healthcare letter | Use formal language. Avoid contractions. Use medical terminology appropriately. |
| 5. Organisation & Layout | Whether the letter follows standard conventions and paragraphs are logically sequenced | Use standard letter format. Group related information in paragraphs. Use appropriate connectors. |
| 6. Language | Accuracy of grammar, vocabulary, spelling, and punctuation | Proofread carefully. Common errors with articles, prepositions, and verb tenses cost marks. |
Standard Referral Letter Structure
A well-structured OET referral letter follows a consistent format. Here is the standard layout:
- Recipient's Address — Name, title, and organisation (if provided in task)
- Date
- Re: Patient name, age, and date of birth
- Salutation — "Dear Dr. [Surname]," or "Dear [Title] [Surname],"
- Opening paragraph — Purpose statement
- Background paragraph — Relevant medical history and presenting condition
- Management paragraph — Treatment given, current status, medications
- Request paragraph — What you want the recipient to do
- Closing — "Yours sincerely," or "Yours faithfully," + your name and title
Step-by-Step: From Case Notes to Letter
Step 1: Read the Task Prompt (1 minute)
Start by reading the writing task instructions carefully. Identify: (a) Who you are writing to, (b) The purpose of the letter, (c) Any specific requests. This determines your entire approach.
Step 2: Analyse the Case Notes (2 minutes)
Read through all case notes and categorise information into three groups: Must include (relevant to the recipient and purpose), Could include (relevant but less critical), and Exclude (irrelevant or already known to recipient). Cross out excluded notes to avoid including them.
Step 3: Plan Your Letter Structure (2 minutes)
Decide what goes in each paragraph. Write brief keywords for each paragraph on your planning sheet. A typical plan looks like:
- Opening: Purpose statement + key patient details
- Paragraph 2: Admission / presenting condition
- Paragraph 3: Management and current status
- Paragraph 4: Request for recipient's action
Step 4: Write the Letter (30 minutes)
Write quickly but carefully. Convert case note abbreviations into full words. Use professional medical language. Aim for 180-200 words. Focus on accuracy — frequent basic errors will lower your Language score significantly.
Step 5: Proofread (5-10 minutes)
This is critical. Check for: spelling errors, verb tense consistency, article usage (a/an/the), preposition errors, punctuation, word count, and that you have included all essential information. Many candidates skip this and lose easy marks.
Time Management Formula
5 minutes reading + planning → 30 minutes writing → 10 minutes proofreading. Do not underestimate the power of proofreading — candidates who spend time checking typically score higher on the Language criterion.
Sample OET Referral Letter (Band B Standard)
Here is a model referral letter based on a typical nursing scenario. This letter demonstrates all six assessment criteria at a Grade B level:
Ms. Jane Roberts
Community District Nurse
Oakwood Community Health Centre
14 Bridge Street
London SE1 9NN
15 January 2025
Re: Mr. Harold Finch, DOB: 12/04/1951
Dear Ms. Roberts,
I am writing to request ongoing wound care for Mr. Finch, who was discharged from Oakwood Hospital today following treatment for a diabetic foot ulcer.
Mr. Finch was admitted on 8 January 2025 with a non-healing ulcer on the plantar surface of his right foot. He has a 12-year history of Type 2 diabetes mellitus, which has been poorly controlled with HbA1c levels consistently above 9%. On admission, the wound measured 3cm x 2cm with moderate exudate and surrounding erythema. Wound cultures grew Staphylococcus aureus, and he was commenced on a 7-day course of oral flucloxacillin.
During his admission, Mr. Finch received daily wound dressings with hydrocolloid dressings and diabetic foot education. His blood glucose levels have stabilised, and the ulcer has decreased in size to 2cm x 1.5cm with no signs of infection. He has been discharged on metformin 1g BD and instructed to keep his foot elevated when seated.
Could you please continue his wound dressings on alternate days and monitor for signs of deterioration? Additionally, please reinforce diabetic foot care education and encourage him to attend his scheduled outpatient podiatry appointment on 29 January 2025.
Should you have any concerns, please do not hesitate to contact me.
Yours sincerely,
Registered Nurse
Why this letter scores Band B:
- Purpose: Clear in opening sentence — "request ongoing wound care"
- Content: Relevant information selected; admission/discharge dates, condition details, medication, and follow-up needs all included
- Conciseness: Approximately 195 words — well within the target range
- Genre & Style: Formal professional tone with appropriate medical vocabulary
- Organisation: Standard letter format with logical paragraph progression
- Language: Grammatically accurate with appropriate use of medical terminology
Key Language and Phrases for OET Letters
Using appropriate professional phrases demonstrates genre awareness. Here are essential phrases organised by function:
Opening Statements (Purpose)
- "I am writing to refer [Patient Name], who requires..."
- "I am writing to request your assessment of..."
- "I am writing to update you on the progress of..."
- "Thank you for seeing [Patient Name], who presented with..."
- "This letter is to inform you that [Patient Name] was discharged today..."
Background and History
- "[Patient] has a [X]-year history of [condition]."
- "[Patient] presented with [symptoms] on [date]."
- "[Patient] was admitted on [date] with [condition]."
- "Relevant medical history includes..."
- "[Patient] has been managed with [treatment] since [date]."
Making Requests
- "Could you please [action required]?"
- "I would appreciate it if you could [action]."
- "It would be grateful if you would [action]."
- "Please [action] at your earliest convenience."
- "I would be grateful for your continued management of..."
Closing Statements
- "Please do not hesitate to contact me if you require any further information."
- "Should you have any questions, please feel free to contact the ward."
- "I would be happy to discuss [Patient]'s case in more detail if required."
Common Mistakes to Avoid
- Copying case notes directly: Always transform abbreviated notes into full sentences.
- Irrelevant information: Including social history or routine observations the recipient does not need.
- Informal language: "Mr. Smith is doing great" should be "Mr. Smith's condition has improved significantly."
- Wrong word count: Significantly under or over 180-200 words affects your Conciseness & Clarity score.
- Forgetting the purpose statement: Every letter must open with a clear statement of why you are writing.
- Tense errors: Be consistent. Current status uses present tense; past events use past tense.
- Inappropriate closing: Use "Yours sincerely," when you know the recipient's name; "Yours faithfully," when you do not.
Pro Tips for Exam Day
Exam Day Strategies
- Read the task prompt before the case notes — it frames your reading
- Cross out case notes you definitely will not include — this prevents accidental inclusion
- Write the date in full (e.g., 15 January 2025) — not abbreviated
- Expand all abbreviations: "c/o" → "complaining of", "&" → "and", ">" → "more than"
- Leave 8-10 minutes for proofreading — this alone can improve your score by one band
- Practise timing yourself — 45 minutes goes faster than you think
Free OET Writing Checklist
Use this interactive checklist before submitting your practice letters:
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