How to Write a Nursing Case Study: A Step-by-Step Guide

A clear framework for turning a patient scenario into a structured, evidence-based case study — including a worked example and the errors that cost the most marks.

By the Assignment Help Global Editorial Team · Updated 30 May 2026 · 8 min read

A nursing case study asks you to take a single patient scenario and demonstrate clinical reasoning: what you observed, what you concluded, what care you planned, and how you would evaluate it. Markers are not just looking for description — they want to see that you can connect assessment data to evidence-based decisions. This guide walks through a reliable structure using the ADPIE nursing process, with a short worked example you can model.

1. Decode the assignment brief and rubric first

Before writing a word, read the brief and marking rubric together. Highlight the verbs (analyse, evaluate, justify) and note how marks are weighted. If 40% of the grade is for the care plan and rationale, that is where most of your words and citations should go — not the patient background. Confirm the required word count, referencing style (usually APA 7th or Harvard), and whether a specific model (e.g., ADPIE, Roper–Logan–Tierney, or the NMC standards) is expected.

2. Analyse the patient scenario and gather cues

Read the scenario several times and separate the subjective data (what the patient reports — pain, nausea, anxiety) from the objective data (observations, vital signs, lab results). List every clinically relevant cue. These cues become the evidence base for your nursing diagnoses, so missing one weakens everything downstream.

3. Use a clear structure (ADPIE)

ADPIE mirrors the nursing process and gives markers an instantly recognisable structure:

4. Write nursing diagnoses correctly

This is where most marks are won or lost. A nursing diagnosis describes a patient response you can treat as a nurse — for example, "Acute pain related to surgical incision as evidenced by a pain score of 7/10 and guarding." Always tie the diagnosis back to the cues you identified in step 2, and prioritise using a recognised framework such as Maslow's hierarchy or the ABCs (airway, breathing, circulation).

Worked mini-example. Scenario: Mr A, 68, is day 1 post-op following a hip replacement. Reports pain 7/10, reluctant to mobilise, BP 142/88, temp 37.9°C.
  • Diagnosis: Acute pain related to surgical trauma, as evidenced by self-reported pain of 7/10 and reluctance to mobilise.
  • Goal (SMART): Mr A will report pain ≤3/10 within 2 hours of analgesia and mobilise 5 metres with assistance by end of shift.
  • Intervention + rationale: Administer prescribed analgesia and reassess at 30 minutes (effective pain control enables early mobilisation, which reduces the risk of DVT and pneumonia post-operatively).
  • Evaluation: Re-score pain and document distance mobilised; escalate if pain remains >3/10.

5. Support every clinical decision with evidence

Each intervention should be backed by a credible, recent source — clinical guidelines (e.g., NICE, WHO), peer-reviewed journals from the last five years, or your institution's protocols. Avoid leaning on textbooks alone or non-academic websites. Cite as you write so you never lose track of a source.

6. Protect patient confidentiality

Never include real names, dates of birth, or identifiable details. Use a pseudonym or initials and explicitly state that details have been changed to maintain confidentiality in line with the NMC Code (UK) or HIPAA (US). This is an academic and professional requirement — breaching it can fail the whole assignment.

7. Edit for clarity, flow, and formatting

Leave time to revise. Check that each section links logically to the next, that your diagnoses map to your cues, and that every claim is referenced. Proofread for tense consistency and clinical terminology, and format your reference list precisely in the required style.

Common mistakes that cost marks

Frequently asked questions

How long should a nursing case study be?

Most undergraduate nursing case studies run 1,500–3,000 words, but always follow your brief. Weight your word count toward assessment, diagnoses, and care-plan rationale rather than background.

What framework should I use?

ADPIE (Assessment, Diagnosis, Planning, Implementation, Evaluation) is the most widely used and mirrors the nursing process, giving markers a clear structure to follow.

Do I need to keep the patient anonymous?

Yes. Use a pseudonym or initials, change identifying details, and state that you have done so in line with the NMC Code or HIPAA.

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