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How to Write an OET Referral Letter

Complete step-by-step guide with sample letter structure, assessment criteria breakdown, and free writing checklist for nurses and doctors.

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Writing Guide Updated January 2025 12 min read

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 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:

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.

CriterionWhat It MeasuresKey Tips
1. PurposeWhether the letter immediately makes the purpose clear and the reader can understand what is expectedInclude 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. ContentWhether all relevant information is included and irrelevant information is omittedOnly include information the reader needs to continue care. Leave out routine details and information the recipient already knows.
3. Conciseness & ClarityWhether the letter is easy to follow and free of unnecessary words or repetitionAim for 180-200 words. Every sentence should serve a purpose. Avoid redundancy.
4. Genre & StyleWhether the tone, register, and vocabulary are appropriate for a professional healthcare letterUse formal language. Avoid contractions. Use medical terminology appropriately.
5. Organisation & LayoutWhether the letter follows standard conventions and paragraphs are logically sequencedUse standard letter format. Group related information in paragraphs. Use appropriate connectors.
6. LanguageAccuracy of grammar, vocabulary, spelling, and punctuationProofread 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:

  1. Recipient's Address — Name, title, and organisation (if provided in task)
  2. Date
  3. Re: Patient name, age, and date of birth
  4. Salutation — "Dear Dr. [Surname]," or "Dear [Title] [Surname],"
  5. Opening paragraph — Purpose statement
  6. Background paragraph — Relevant medical history and presenting condition
  7. Management paragraph — Treatment given, current status, medications
  8. Request paragraph — What you want the recipient to do
  9. 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:

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:

Sample Referral Letter — Discharge to Community Nurse

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:

Key Language and Phrases for OET Letters

Using appropriate professional phrases demonstrates genre awareness. Here are essential phrases organised by function:

Opening Statements (Purpose)

Background and History

Making Requests

Closing Statements

Common Mistakes to Avoid

Pro Tips for Exam Day

Exam Day Strategies

Free OET Writing Checklist

Use this interactive checklist before submitting your practice letters:

Practise OET Writing with AI Feedback

Submit your referral letters to our AI-powered OET Writing tool and get instant scoring across all six assessment criteria. Track your progress and improve faster.

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Frequently Asked Questions

What is the OET referral letter?
The OET referral letter is a task in the OET Writing sub-test where candidates must write a professional letter (typically a referral, transfer, or discharge letter) based on medical case notes. It assesses your ability to communicate effectively in a healthcare context.
How long should an OET referral letter be?
An OET referral letter should be between 180-200 words. Writing significantly more or fewer words can result in penalties. The key is to be concise while including all relevant clinical information.
What are the six assessment criteria for OET Writing?
The OET Writing sub-test is assessed against six criteria: Purpose, Content, Conciseness and Clarity, Genre and Style, Organisation and Layout, and Language. Each criterion is scored from 0 to 7, and you need at least 350 out of 500 to pass.
Can I use bullet points in OET Writing?
No. OET Writing requires continuous prose in paragraph form. Bullet points are not appropriate for this task and may result in a lower score for Organisation and Layout.
Should I include the patient's address in the letter?
Only include the patient's address if it is relevant to the recipient's care. In most cases, the recipient's address, date, patient reference line, and relevant clinical information are sufficient.
How can I improve my OET Writing score quickly?
Focus on: (1) Always including a clear purpose statement, (2) Selecting only relevant case notes, (3) Keeping to 180-200 words, (4) Proofreading for grammar errors, and (5) Using the interactive checklist above for every practice letter.