Nursing Annotated Bibliography Example

A nursing annotated bibliography example is easiest to learn from when it uses real studies and shows why each annotation works. That is what this guide does. Below is a complete five-source annotated bibliography in APA 7 on nurse staffing and patient mortality, followed by notes on how each annotation is built.

Every source in the example is a real, peer-reviewed study you can look up. After the example, you will find a step-by-step method, the APA formatting rules, and the mistakes that cost students marks most often.

If you are short on time or your instructor has unusual requirements, our team can help with your literature review and annotated bibliography.

What Is a Nursing Annotated Bibliography?

A nursing annotated bibliography is a list of sources on one clinical or research question, where each reference is followed by a short paragraph called an annotation. The annotation summarizes the source, judges how trustworthy it is, and explains how it helps your project.

Nursing programs assign them early in research courses, before a literature review, a PICOT paper, an evidence-based practice project or a capstone. The task trains you to read studies critically instead of collecting them. Most nursing annotations run 150 to 250 words, but your rubric decides.

There are three types of annotation. Check your assignment sheet to see which one you need.

The example below combines all three, which is what most nursing rubrics reward. The Purdue OWL guide to annotated bibliographies describes the same three functions in general terms.

Nursing Annotated Bibliography Example (APA 7)

This example answers one focused question: How does registered nurse staffing affect patient mortality in acute care hospitals? It uses five real studies, listed alphabetically by first author as APA requires. Each annotation summarizes, evaluates and reflects.

Annotated Bibliography: Nurse Staffing and Patient Mortality in Acute Care Hospitals

Aiken, L. H., Clarke, S. P., Sloane, D. M., Sochalski, J., & Silber, J. H. (2002). Hospital nurse staffing and patient mortality, nurse burnout, and job dissatisfaction. JAMA, 288(16), 1987–1993. https://doi.org/10.1001/jama.288.16.1987

Aiken and colleagues examined whether the number of patients assigned to each hospital nurse affects surgical patient deaths and nurse wellbeing. The cross-sectional study linked discharge data for 232,342 surgical patients in 168 Pennsylvania hospitals with survey responses from 10,184 staff nurses. After adjusting for patient and hospital characteristics, each additional patient per nurse was associated with a 7% increase in the odds of death within 30 days of admission and a 7% increase in failure to rescue. Each extra patient also raised the odds of nurse burnout by 23% and job dissatisfaction by 15%. The large sample and careful risk adjustment are major strengths. However, the cross-sectional design shows association rather than cause, staffing was measured as a hospital-wide average rather than by unit, and the data are now more than two decades old. This source will anchor the background section by establishing the original staffing–mortality link that later studies tested.

Ball, J. E., Murrells, T., Rafferty, A. M., Morrow, E., & Griffiths, P. (2014). ‘Care left undone’ during nursing shifts: Associations with workload and perceived quality of care. BMJ Quality & Safety, 23(2), 116–125. https://doi.org/10.1136/bmjqs-2012-001767

Ball and colleagues explored a likely mechanism linking low staffing to poor outcomes: necessary care that nurses leave undone because they run out of time. In a cross-sectional survey of 2,917 registered nurses on 401 medical and surgical wards in 46 English NHS hospitals, 86% reported leaving at least one care activity undone on their last shift. The activities most often missed were comforting or talking with patients (66%), educating patients (52%) and developing or updating care plans (47%). Missed care rose significantly as the number of patients per nurse increased. Wards rated as failing on patient safety averaged 7.8 missed activities per shift, compared with 2.4 on wards rated excellent. The study’s strength is explanatory: it moves from whether staffing matters to how it matters. Its main limitation is reliance on nurses’ self-reported recall of a single shift, which may introduce recall and response bias. This source will support the discussion of why understaffing harms patients and suggests missed care as a measurable outcome for a future project.

Kane, R. L., Shamliyan, T. A., Mueller, C., Duval, S., & Wilt, T. J. (2007). The association of registered nurse staffing levels and patient outcomes: Systematic review and meta-analysis. Medical Care, 45(12), 1195–1204. https://doi.org/10.1097/MLR.0b013e3181468ca3

Kane and colleagues conducted a systematic review and meta-analysis of observational studies to estimate how registered nurse staffing relates to patient outcomes in acute care hospitals. Higher RN staffing was associated with lower hospital-related mortality, failure to rescue, cardiac arrest and hospital-acquired pneumonia. An increase of one RN full-time equivalent per patient day was associated with 9% lower odds of hospital-related death in intensive care units, 16% lower odds in surgical patients and 6% lower odds in medical patients. As a meta-analysis, the source sits high on the evidence hierarchy and pools results that single studies cannot. The authors state clearly that the association is not necessarily causal, because no randomized trials were available and the included studies measured staffing in different ways. That variation limits how precisely the pooled estimates can be applied. This source will be used to summarize the overall strength of the evidence and to justify a focus on surgical and intensive care settings, where effects were largest.

Lasater, K. B., Aiken, L. H., Sloane, D., French, R., Martin, B., Alexander, M., & McHugh, M. D. (2021). Patient outcomes and cost savings associated with hospital safe nurse staffing legislation: An observational study. BMJ Open, 11(12), Article e052899. https://doi.org/10.1136/bmjopen-2021-052899

Lasater and colleagues tested whether higher nurse workloads in Illinois hospitals were linked to patient deaths, length of stay and hospital costs while a staffing ratio bill was under debate. Using 2020 data from 87 hospitals, they found that medical-surgical staffing ranged from 4.2 to 7.6 patients per nurse, with a mean of 5.4. After adjustment, each additional patient per nurse was associated with 16% higher odds of in-hospital death and 5% higher odds of a longer stay. The authors projected that a 4:1 ratio would have prevented more than 1,595 deaths and saved over $117 million in one year. The study’s value lies in its recent data and its direct link to health policy. Its projections, however, assume the observed associations are causal and depend on modeling choices, and the analysis was designed to inform a specific bill. This source will connect the evidence to current legislation in the policy implications section.

Needleman, J., Buerhaus, P., Pankratz, V. S., Leibson, C. L., Stevens, S. R., & Harris, M. (2011). Nurse staffing and inpatient hospital mortality. New England Journal of Medicine, 364(11), 1037–1045. https://doi.org/10.1056/NEJMsa1001025

Needleman and colleagues addressed a key criticism of earlier staffing research: that hospital-wide averages hide what happens to individual patients on individual shifts. Using data from one large academic medical center, they linked 197,961 admissions to 176,696 eight-hour nursing shifts across 43 units. Each shift on which RN staffing fell 8 or more hours below target raised a patient’s risk of death (hazard ratio 1.02 per shift), and each high-turnover shift raised it further (hazard ratio 1.04). Because the hospital met its staffing targets on 84% of shifts, the harm appeared even in a generally well-staffed setting. The patient-level, longitudinal design is the study’s main strength and gives stronger evidence than cross-sectional work. Its main limitation is generalizability, since all data came from a single high-performing institution. This source will support the argument that staffing must match patient need shift by shift, not only on average, and will help frame the research question around unit-level staffing.

Why This Example Works

Every annotation above follows the same four moves, in the same order. Once you see the pattern, you can reuse it for any nursing topic.

1. Purpose in one sentence. Each annotation opens by naming the problem the authors tackled, not by repeating the title. The Needleman annotation, for example, starts with the criticism the study was built to answer.
2. Method and numbers. Design, setting and sample size come next, then the main result with real figures. “Each additional patient per nurse raised the odds of death by 7%” earns more marks than “staffing affected mortality.”
3. A judgment of quality. Each annotation names one strength and at least one limitation tied to the design: cross-sectional versus longitudinal, single site versus multisite, self-report versus administrative data. This is what turns a summary into an evaluation.
4. How you will use it. The last sentence links the source to a specific part of your future paper: background, mechanism, strength of evidence, policy or research question.

Notice also what the annotations avoid. They do not copy the abstract, quote long passages, or say a study is “good” without saying why. The sources also work as a set: an early landmark study, a mechanism study, a meta-analysis, a patient-level design and a recent policy study. That range shows an instructor you understand how the evidence fits together.

You can apply the same structure to any question. If you are still choosing a topic, our list of patient safety research topics is a good place to start, since staffing, falls and medication errors all have deep evidence bases.

How to Write a Nursing Annotated Bibliography, Step by Step

1. Narrow your question. A vague topic like “nurse burnout” returns thousands of studies. A PICOT-style question, such as whether 12-hour shifts affect medication errors on medical-surgical units, tells you which sources belong.
2. Search nursing databases. Use CINAHL and PubMed first, then Cochrane for systematic reviews. Filter for peer-reviewed articles and the date range your instructor sets, often the last five to seven years.
3. Choose sources that cover the evidence. Aim for a mix: at least one systematic review or meta-analysis, several primary studies, and quantitative and qualitative designs where relevant. Avoid five studies that all say the same thing.
4. Read the full article, not only the abstract. Limitations usually sit in the discussion section, and you need them for the evaluation sentences.
5. Take notes in a matrix. Record author, year, design, sample, setting, key findings and limitations for each source. The matrix makes annotations faster to write and becomes the skeleton of your literature review later.
6. Write the APA reference. Format it before the annotation so nothing gets lost. Copy the DOI from the article page.
7. Draft the annotation in four moves. Purpose, method and findings, evaluation, then use. Keep it within your word limit, usually 150 to 250 words.
8. Check against the rubric. Confirm the annotation type, word count, number of sources, date range and whether first person is allowed.

If your annotated bibliography is the first step toward a larger paper, see our nursing research proposal example to see where these sources end up.

APA 7 Formatting Rules for a Nursing Annotated Bibliography

Most nursing programs use APA 7. Unless your instructor says otherwise, follow these rules:

• Title: Center and bold “Annotated Bibliography” at the top of the first page. A topic subtitle is optional.
• Font and spacing: Use a standard font such as 12-point Times New Roman or 11-point Calibri. Double-space everything, including references and annotations.
• Order: List entries alphabetically by the first author’s last name, exactly as in a reference list.
• Reference format: Each reference takes a 0.5-inch hanging indent. Italicize the journal name and volume number, and include the DOI as a full link.
• Annotation placement: Start the annotation on the line below its reference. Indent the whole annotation 0.5 inches from the left margin; indent the first line of any new paragraph a further 0.5 inches.
• Voice: Write in third person unless your rubric allows first person for the reflection.

The APA Style website covers reference formats for every source type, from journal articles to government reports.

Annotated Bibliography vs. Literature Review

An annotated bibliography treats each source separately; a literature review weaves sources together around themes. In the example above, each study gets its own paragraph. In a literature review, Aiken, Kane and Lasater would appear in the same paragraph as evidence for one theme, such as “higher patient loads are linked to higher mortality.”

The annotated bibliography usually comes first, and it does much of the reading and evaluation for you. When you are ready to turn your annotations into themes, gaps and an argument, our nursing literature review help can guide that step.

Common Mistakes That Cost Marks

• Copying the abstract. Instructors recognize abstract wording at once. Paraphrase in your own words and add the evaluation the abstract never gives.
• Summary with no evaluation. If an annotation never names a strength or limitation, it is descriptive, and most nursing rubrics ask for more.
• Vague findings. “The study found staffing was important” says nothing. Give the effect size, percentage or direction of the result.
• Weak or old sources. Blogs, news stories and studies outside the date range are common reasons for lost points. Use peer-reviewed research unless told otherwise.
• No link to your question. Every annotation should end by explaining how the source serves your project.
• APA errors. Missing DOIs, wrong capitalization in article titles, and entries out of alphabetical order are the most frequent problems.
• Ignoring the word limit. Running far over or under the rubric’s range suggests you did not read the instructions.

Need Help With Your Nursing Annotated Bibliography?

Finding the right studies, reading them in full and evaluating each one takes hours, especially alongside clinical placements. Our nursing writers hold advanced degrees and work with CINAHL, PubMed and APA 7 every day. We can help you select credible sources, build a literature matrix, write and edit annotations, and turn them into a literature review when you are ready.

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Frequently Asked Questions

How long should a nursing annotation be?

Most nursing annotations run 150 to 250 words. Some instructors ask for a fixed number of paragraphs instead, so follow your rubric.

How many sources should a nursing annotated bibliography have?

Undergraduate assignments usually require 5 to 10 sources. Graduate and DNP assignments often require 10 to 20 or more.

Can I use first person in a nursing annotated bibliography?

APA allows first person, but many nursing instructors prefer third person. If your rubric is silent, write in third person, as in the example above.

Do I need an introduction?

Not always. Some nursing assignments ask for a short introduction stating the research question and search strategy, plus a conclusion. Check your instructions.

What kinds of sources should I include?

Use peer-reviewed journal articles first, including systematic reviews where possible. Clinical guidelines and government reports can be added if your instructor allows them.

What is the difference between an annotation and an abstract?

An abstract summarizes a study in the authors’ words. An annotation is your own summary plus your judgment of the study’s quality and its value to your project.

Sources

• Aiken et al. (2002), JAMA
• Ball et al. (2014), BMJ Quality & Safety
• Kane et al. (2007), AHRQ evidence report summary
• Lasater et al. (2021), BMJ Open via PMC
• Needleman et al. (2011), NEJM
• Purdue OWL: Annotated bibliographies