A nursing literature review is rarely hard because of the writing. It is hard because of everything that should happen before you write.
Choosing databases, running searches that return a manageable set of results, deciding what is in scope and organizing what you find all come first. This guide covers that process end to end. To see what the finished write-up looks like, read the nursing literature review example.
The Literature Review Process in Brief
Start with a focused review question, often your PICOT. Search CINAHL and PubMed (plus Cochrane for existing reviews) with Boolean strings built from your key concepts, and write inclusion and exclusion criteria before you screen.
Save every source to a citation manager, extract key details into a table, then draft by theme rather than by source. Finish with a gap statement that links the evidence to your project.
Step 1: Define the Review Question First
It is tempting to start searching as soon as you have a topic such as "fall prevention". A search that broad returns thousands of results, most of them irrelevant.
Before opening a database, write one or two sentences stating what the review must establish. For a capstone this is usually your PICOT question or a close variant; for a standalone assignment, the prompt sets the scope.
A focused question does two jobs. It tells you what to search for, and later it tells you what to exclude, because an interesting source still does not belong if it does not answer your question.
Step 2: Choose Databases Deliberately
Searching only Google Scholar tends to miss nursing-specific literature and makes your search hard to report. Use two or three subject databases instead.
| Database | Best for | Notes |
|---|---|---|
| CINAHL | Nursing and allied health topics | Usually the primary database for nursing reviews |
| PubMed / MEDLINE | Medical, pharmacological and clinical topics | Free to search; broader than CINAHL; uses MeSH headings |
| Cochrane Library | Systematic reviews and trials | Check first; an existing review can anchor your whole chapter |
| PsycINFO | Mental health and behavior change | Useful for patient or staff psychology topics |
| ERIC | Nursing education and training | Relevant to staff education interventions |
CINAHL plus PubMed is a strong default for most nursing topics. Add a third database only when your topic clearly needs it.
Step 3: Build the Search String
Break your question into its main concepts, usually population, intervention and outcome. List synonyms for each, then combine them with Boolean operators.
- OR joins synonyms within a concept and widens the search.
- AND joins different concepts and narrows it.
- Quotation marks keep a phrase together, such as "older adult".
- Truncation (*) catches word endings, so fall* finds fall, falls and falling.
Question: fall prevention in hospitalized older adults.
Search string: (fall* OR "fall prevention") AND (elderly OR "older adult*" OR geriatric) AND (hospital* OR inpatient)
Then add: the database's subject headings (CINAHL Headings or MeSH) for each concept, combined with OR alongside the keywords.
Applying Limits
Most databases let you filter by date, language, peer review and study type. Many programs expect sources from the last five to seven years for evidence-based practice work, and some insist on five.
Older landmark studies can still belong if they remain central to the topic. Check your program's rule before relying on them, and record every limit you apply.
Step 4: Set Inclusion and Exclusion Criteria
Write your criteria down before you screen a single result. Deciding case by case leads to inconsistent choices that are hard to defend.
| Criterion | Typical inclusion | Typical exclusion |
|---|---|---|
| Publication type | Peer-reviewed research and systematic reviews | Editorials and opinion pieces without data |
| Date | Within your program's window | Older studies unless they are foundational |
| Population | Matches your review population and setting | Populations that do not transfer, such as pediatric studies in an adult review |
| Language | English, or translations available | Studies you cannot read in full |
| Focus | Addresses your question or a closely related one | Topically related but off-question |
Screen titles first, then abstracts, then full texts. Keep a simple count at each stage; if your review is systematic, these counts feed a PRISMA 2020 flow diagram.
Step 5: Set up Citation Management Early
Retrofitting citations at the end is one of the most time-consuming parts of revision. Set up your system before you start screening.
- Choose a citation manager such as Zotero or Mendeley (both free) and save sources straight from the database.
- Tag each source by theme as you save it.
- Export your APA 7th reference list from the manager, then check every entry for missing DOIs and wrong capitalization.
- Note page or paragraph numbers for any quotation as you read.
Step 6: Extract Data into a Table
Read the full text of every included source and record the same details for each. This table becomes the backbone of your synthesis.
| Column | What to record |
|---|---|
| Author and year | For in-text citation |
| Design and level of evidence | For example RCT, cohort, qualitative; level from your program's hierarchy |
| Sample and setting | Size, population and care setting |
| Key findings | The results that bear on your question |
| Limitations | What weakens confidence in the findings |
| Theme | Where the study fits in your review |
Avoid citing from abstracts alone. Abstracts often leave out sample details and limitations, so use your library or interlibrary loan for full texts, or substitute another source.
Appraise as You Extract
Rate each study's level and quality while it is fresh. Many programs use the Johns Hopkins evidence appraisal tools or the Melnyk and Fineout-Overholt hierarchy, so check which one your rubric names and apply it to every source the same way.
Appraisal lets you weigh studies fairly in the draft. A well-run trial and a small pilot can both belong in a theme, but they should not carry equal weight in your conclusions.
Step 7: Organize and Draft by Theme
Read across your table for shared outcomes, agreements, contradictions and gaps. Each strong pattern becomes a theme and a subheading.
- Introduction: the problem, why it matters and the review question.
- Search methods: databases, terms, limits and criteria, briefly.
- Themes: one section per theme, comparing studies within it.
- Synthesis and gap: what the evidence shows overall and what remains unanswered.
- Conclusion: how the gap leads to your project or recommendation.
Discuss method differences where they might explain different results. That comparison is what lifts a themed review into a real synthesis.
Planning Your Time
Students often budget for writing and forget that searching and reading take longer. A rough split for a capstone-length review looks like this.
| Stage | Share of total time | Output |
|---|---|---|
| Question and search strategy | About 10% | Review question, concept table, search strings |
| Searching and screening | About 20% | Included sources with counts at each stage |
| Full-text reading and extraction | About 30% | Completed extraction table |
| Theming and outlining | About 10% | Themes, subheadings and gap statement |
| Drafting and revising | About 30% | Finished, formatted review |
If your deadline is close, protect the reading and extraction stage. A review drafted from skimmed abstracts is the hardest kind to fix later.
Keep a Search Log
Record the date, database, exact string, limits and number of results for every search. It takes a minute per search and lets you write your methods paragraph accurately.
Common Mistakes and Fixes
| Mistake | Fix |
|---|---|
| Searching before the question is focused | Write the review question first, then build the string |
| Relying on one general search engine | Use CINAHL plus PubMed, and check Cochrane |
| Deciding inclusion source by source | Write criteria before screening and apply them consistently |
| Citation manager set up at the end | Save and tag sources from the first search |
| Writing one paragraph per source | Draft by theme from your extraction table |
| Missing an existing systematic review | Search Cochrane and filter for reviews before anything else |
How NurseCapstone Helps with Literature Reviews
Send your review question or PICOT, your rubric, your program's date window and any sources you have already found. A writer matched to your level can run and document the search, screen against your criteria, build the extraction table and write a model themed review.
You can hand over any stage, from search strategy to final synthesis. The work is written from scratch and plagiarism-checked, with free revisions within the scope of your original request.
Want Help from Search to Final Draft?
Send your review question, rubric and any sources you have. Your writer can pick up at any stage and build a model themed review.
Start My Literature ReviewFree revisions · Full refund if late · Written from scratch for your order
Frequently Asked Questions
It depends on the assignment. Capstone chapters often use around 15 to 25 sources and shorter course papers fewer, but coverage of your themes matters more than a precise count.
Many programs expect the last five to seven years, and some require five. Foundational studies can be included if they remain central, but check your program's rule first.
It depends on the question. Effectiveness questions rely mainly on quantitative studies, while questions about experiences or barriers need qualitative work, and many reviews use both.
Broaden one element at a time, such as the population or setting, and discuss your specific group as a gap. Very thin literature may also mean the topic needs adjusting.
Avoid it. Abstracts omit details that matter for accurate synthesis, so get the full text or choose another source.
A background section briefly explains why a topic matters. A literature review is a full, themed synthesis of the evidence and is far longer.
Usually not. A systematic review follows a registered protocol, a reproducible search and formal appraisal, often reported with PRISMA 2020; most capstone reviews are narrative or integrative.
Zotero and Mendeley are both free and work well. Choose one before you start searching, and check its APA 7th output by hand.