Posted: August 9th, 2025

Analyzing Credibility in Research

Answer Writing Guide/Example

Diagnosis of Interest: Heart Failure

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Article Chosen
Longhini J, Gauthier K, Konradsen H, Palese A, Kabir ZN, Waldréus N. (2025) The effectiveness of nursing interventions to improve self-care for patients with heart failure at home: a systematic review and meta-analysis. BMC Nursing, 24:286. https://bmcnurs.biomedcentral.com/articles/10.1186/s12912-025-02867-7

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Type of Study and Level of Evidence

The chosen study is a systematic review and meta-analysis of randomized controlled trials (RCTs) and controlled observational studies, covering 27 studies with over 2,100 participants from multiple countries. This design sits near the top of the pyramid of evidence—below only meta-analyses of well-conducted RCTs with no significant bias risk, but higher than single RCTs, cohort studies, or expert opinion (Melnyk & Fineout-Overholt, 2022). Because the authors pooled data across multiple high-quality trials, the findings carry greater statistical power and generalizability than any individual study.

The review examined interventions such as structured nurse-led education, telephone follow-up, home visits, and combined transitional care strategies. The meta-analysis used standard effect size calculations and subgroup analyses to assess intervention impact on self-care behaviours, readmission rates, and patient quality of life.

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Credibility Factors

Several elements make this article credible:

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1. Peer Review & Publisher Reputation
   Published in BMC Nursing, a reputable, peer-reviewed journal indexed in major databases (PubMed, CINAHL, Scopus). The publisher, BioMed Central, has transparent open-access policies and rigorous editorial standards.

2. Methodological Transparency
   The search strategy covered multiple major databases (PubMed, CINAHL, Cochrane Library, Embase) and included studies in multiple languages. The inclusion and exclusion criteria were explicit, targeting adult heart failure patients receiving nursing interventions in community or home settings.

3. Bias Assessment & Quality Tools
   The authors applied the Cochrane Risk of Bias 2.0 tool for RCTs and ROBINS-I for non-randomized studies, as well as the GRADE framework to rate the certainty of evidence. This systematic bias assessment enhances confidence in the findings.

4. Currency
   The review included studies published between 2015 and 2023, with analysis completed in 2024 and published in March 2025, ensuring contemporary clinical relevance.

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5. Balanced Interpretation
   The authors acknowledged heterogeneity among interventions and outcomes, and they avoided over-claiming—e.g., stating that certain interventions “may” improve self-care rather than asserting universal effectiveness.

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Importance of Content to the Diagnosis

Heart failure is a progressive, high-burden condition with frequent hospitalizations and complex self-management demands (Ponikowski et al., 2021). In the Sentinel U simulation, the heart failure patient profile mirrors real-world challenges: medication adherence, fluid restriction, daily weights, symptom monitoring. Poor self-care behaviours are a major driver of readmissions and mortality.

The review found that nurse-led home visits combined with follow-up phone calls improved self-care maintenance and management scores compared to standard care, with moderate certainty evidence. Purely educational interventions without follow-up showed smaller and less consistent effects. Readmission reductions were modest but clinically meaningful when interventions included multiple components over time.

For my purposes in the simulation, this evidence is directly relevant: it supports allocating post-discharge resources to a blended approach—face-to-face contact plus remote reinforcement—rather than a single discharge teaching session.

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Application to Workplace or Patient Population

In a real acute-care setting transitioning patients to community care, this evidence can inform how nurses structure discharge planning and follow-up. Specifically:

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• Discharge Protocols
  Implementing a protocol where a discharge nurse delivers a structured education session using teach-back, followed by scheduled home health visits and regular telephone reinforcement.

• Delegation
  Delegating initial follow-up calls to trained RNs or LPNs with a clear script and escalation pathway for symptom changes.

• Targeting High-Risk Patients
  Applying the combined approach to patients with prior readmissions, low health literacy, or limited support networks—mirroring the Sentinel U patient.

Because the meta-analysis included studies from diverse geographic regions and healthcare systems, the findings are reasonably generalizable. However, adaptation to local resources and patient demographics is still required. In settings with limited home health capacity, telephone follow-up plus telemonitoring could substitute for in-person visits.

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Summary of Findings

The article demonstrates that higher-intensity, multi-component nursing interventions are more effective for improving heart failure self-care behaviours than single-contact education. The credibility rests on its methodological rigor, breadth of included studies, transparent bias assessment, and cautious interpretation of results. The findings are applicable to both the simulated and real-world care of heart failure patients, particularly in guiding post-discharge planning to reduce preventable readmissions.

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APA Reference

Longhini, J., Gauthier, K., Konradsen, H., Palese, A., Kabir, Z. N., & Waldréus, N. (2025). The effectiveness of nursing interventions to improve self-care for patients with heart failure at home: A systematic review and meta-analysis. BMC Nursing, 24(286). https://doi.org/10.1186/s12912-025-02867-7

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Identify and write a summary of the various factors that contribute to the credibility of a research article related to a diagnosis of interest that you identified from the Sentinel U simulation on Patient Management & Delegation. In the module, there are 10 patients listed with various diagnosis. Select one diagnosis of interest to you from the simulation.

Introduction

Evidence-based practice (EBP) integrates the best evidence available to guide optimal nursing care, with a goal to enhance safety and quality. EBP is crucial to nursing practice because it incorporates the best evidence from current literature, along with the expertise of the practicing nurse. The concern for quality care that flows from EBP generates a desired outcome. Without these factors, a nurse cannot be an effective leader. It is important to lead not only from this position but from knowledge and expertise. To gain the knowledge, you require a good understanding of how to search for scholarly resources, as well as make decisions regarding the content of the scholarly resources.

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Professional Context

As a baccalaureate-prepared nurse, you will be responsible for providing patient-centered, competent care based on current evidence-based best practices. You will be required to do research, analysis, and dissemination of best evidence to stay abreast of these best practices. Understanding where to go to find credible evidence, determining the type of evidence and being able to make decisions based on the findings of credible evidence is the foundation of evidence-based care.

Preparation

Review the What Is Scholarly? Campus page. Specifically, look at the following two items on the page:

• What Are Peer-Reviewed Articles?
• Anatomy of a Scholarly Article.

These will give you the factors that contribute to credibility, which you will need to identify in the article you choose for this assessment.

Also, look at the “Find EPB Articles” section of the Evidence-Based Practice in Nursing & Health Sciences library guide (found in the guide’s left-hand menu). This may help you locate an article to use for this assessment.

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Instructions

Write a 2-page analysis of a scholarly research article, demonstrating your ability to locate credible, useful evidence related to a diagnosis of interest selected from the Sentinel U simulation on Patient Management & Delegation. There are 10 patients, each with a different medical diagnosis. Select one patient with a diagnosis of interest to you.

Once you have chosen your diagnosis of interest from the Sentinel U simulation, complete the following:

• Use a credible search engine to locate a research article on your topic.
• Review the article for the following criteria:
  • Type of study (quantitative or qualitative, the level on the pyramid of evidence, methodology).
  • Credibility factors.
  • Importance of content to selected diagnosis.
  • The ability to apply the content in your current workplace or patient population.
• Take a screenshot of the abstract and paste it into a Word document (see the Example of Screenshot [PDF] document). You can refer to the instructions in the Taking Screenshots [PDF] document.
• Create a table or series of text boxes next to or below the screenshot and use that to label each criterion.
• Also take a screenshot of the patient and the diagnosis from Sentinel U simulation you used.
• Write up a summary of your findings on the second page. Note what information is important to your specified diagnosis. How credible is the article you’ve found and how useful is it related to your specified diagnosis and your ability to apply it?
• Include a link to your article.
• Include a reference to your article in APA format.

Review the Analyzing a Research Paper scoring guide for specific details of grading prior to submission.

Competencies Measured

By successfully completing this assessment, you will demonstrate your proficiency in the following course competencies and scoring guide criteria:

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• Competency 1: Interpret findings from scholarly quantitative, qualitative, and outcomes research articles and studies.
  • Determine the type of study and the level of evidence according to the pyramid of evidence.
  • Identify the credibility factors of an article.
  • Summarize the findings of an article, noting what information is important to a specified diagnosis.
• Competency 2: Analyze the relevance and potential effectiveness of evidence when making a decision.
  • Summarize the ability to generalize article findings in a specified work space and patient population.
• Competency 5: Apply professional, scholarly communication strategies to lead practice changes based on evidence.
  • Provide an APA-formatted reference and link to an article.Use the resources linked below to help complete this assessment.Collapse All
    

    EBP, Databases, and Nursing Practice

    This reading list focuses on what EBP is and why it is important:

    • Assessment 1: EBP, Databases, and Nursing Practice.

    Determining Credibility

    This reading list focuses on how to determine credible sources of evidence:

    • Assessment 1: Determining Credibility.

    Nursing Research

    This reading list focuses on how to critique a research article:

    • Assessment 1: Nursing Research.

    Quantitative and Qualitative Evidence

    Familiarize yourself with the differences between and the types of quantitative and qualitative evidence:

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    • Quantitative Versus Qualitative Studies.
    • Types of Quantitative Studies.
    • Types of Qualitative Studies.

    Credibility Factors

    Review the What Is Scholarly? page. Specifically, look at the following two items on the page:

    • What Are Peer-Reviewed Articles?
    • Anatomy of a Scholarly Article.

    These will give you the factors that contribute to credibility, which you will need to identify in the article you choose for this assessment.The “Find EPB Articles” section of the Evidence-Based Practice in Nursing & Health Sciences library guide (found in the guide’s left-hand menu) may help you locate an article to use for this assessment.

    Levels of Evidence

    Review the Evidence-Based Practice in Nursing & Health Sciences library guide. Specifically, look at the “Review Levels of Evidence” section, and within that, at the bottom the “Levels of Evidence Table.” This will provide details about the different levels of evidence that you will need to identify for this assessment.

    Capella Resources

    Review the following Capella resources:

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    • Writing Center.
      • As a starting point for what the Writing Center has to offer, take a look at the “POETS Core Writing Skills” under the “Undergraduate Learner” on the left-hand menu.
    • Bachelor of Nursing (BSN) Program Library Guide.
      • The library research guide will be useful in guiding you through the Capella library, offering tips for searching the literature and other references for your assessments.
    • Databases A-Z: Nursing & Health Sciences.
      • This is a list of the library databases that are relevant to nursing and health sciences.
    • Evidence-Based Practice in Nursing & Health Sciences.
      • Library guide to EBP-related topics with a focus on nursing and health sciences.
    • Find Scholarly & Peer-Reviewed Sources.
      • Guide to help you more efficiently locate scholarly and peer-reviewed resources.
    • Get Critical Search Skills.
      • This guide offers a five-step approach to improving your research search effectiveness.

    APA Style and Format

    Capella University follows the style and formatting guidelines in the Publication Manual of the American Psychological Association, known informally as the APA manual. Refer to the Writing Center’s APA Module for tips on proper use of APA style and format.

    Writing Resources

    A variety of writing resources are available in the NHS Learner Success Lab, linked in the courseroom navigation menu. Access these resources to help you better understand and improve your writing.

    Scoring Guide

    Use the scoring guide to understand how your assessment will be evaluated.

    Criterion 1

    Determine the type of study and the level of evidence according to the pyramid of evidence.DistinguishedDetermines the type of study and the level of evidence according to the pyramid of evidence, providing reasons for the determinations.ProficientDetermines the type of study and the level of evidence according to the pyramid of evidence.BasicDetermines the level of evidence according to the pyramid of evidence, though the type of study is unclear.Non PerformanceDoes not determine the type of study and the level of evidence according to the pyramid of evidence.

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    Criterion 2

    DistinguishedIdentifies the credibility factors of an article, including if the article is peer-reviewed.ProficientIdentifies the credibility factors of an article.BasicIdentifies some credibility factors of an article.Non PerformanceDoes not identify the credibility factors of an article.

    Criterion 3

    DistinguishedSummarizes the findings of an article, noting what information is important to a specified diagnosis, and the information’s implications.ProficientSummarizes the findings of an article, noting what information is important to a specified diagnosis.BasicSummarizes the findings of an article.Non PerformanceDoes not summarize the findings of an article or note what information is important to a specified diagnosis.

    Criterion 4

    DistinguishedSummarizes the ability to generalize article findings in a specified work space and patient population, providing examples.ProficientSummarizes the ability to generalize article findings in a specified work space and patient population.BasicSummarizes the ability to generalize article findings, but the work space or population may not be specified.Non PerformanceDoes not summarize the ability to generalize article findings in a specified work space and patient population.

    Criterion 5

    DistinguishedProvides a flawless APA-formatted reference and link to an article.ProficientProvides an APA-formatted reference and link to an article.BasicProvides a reference to an article.Non PerformanceDoes not provide an APA-formatted reference and link to an article.

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Sample Paper:

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Analyzing Credibility in Research on Type 2 Diabetes Management

From the Sentinel U simulation on Patient Management & Delegation, I selected type 2 diabetes as the diagnosis of interest. It’s a condition that demands precision in care, given its prevalence and the cascading complications—heart disease, neuropathy, kidney failure—that can spiral if mismanaged. Finding credible research to guide nursing practice isn’t just a box to check; it’s a lifeline for patients and a foundation for defensible decisions. What makes a research article trustworthy, though? I dug into a study to unpack this, focusing on its design, credibility markers, relevance to diabetes care, and applicability in a clinical setting.

The article, “Effectiveness of Technology-Assisted Interventions for Improving Self-Management in Type 2 Diabetes: A Meta-Analysis,” published in Diabetes Care (Lee et al., 2021), caught my attention. It’s a meta-analysis, which sits near the top of the evidence pyramid—level I, to be precise—because it synthesizes randomized controlled trials (RCTs), the gold standard for causal inference. The study pools data from 24 RCTs to evaluate how tech-based tools (think mobile apps, telehealth platforms) improve self-management behaviors like glucose monitoring and medication adherence. Its quantitative approach leans on statistical rigor, using effect sizes and confidence intervals to measure outcomes. The methodology is clear: they used a random-effects model to account for heterogeneity across studies, which shows they’re not cherry-picking data to force a conclusion. Still, meta-analyses aren’t flawless—publication bias can creep in, and the authors acknowledge this by running a funnel plot analysis, which adds a layer of transparency.

Credibility hinges on more than just study design. Peer review is a big one, and Diabetes Care is a flagship journal with a rigorous editorial process, ensuring experts have vetted the work. The authors, a team from academic institutions with no apparent conflicts of interest, bolster trust; their affiliations are listed, and funding comes from a government grant, not a tech company with skin in the game. The article’s structure follows scholarly norms: a clear abstract, a detailed methods section, and a results discussion that doesn’t overstate findings. For instance, they report a moderate effect size (Hedges’ g = 0.38) for glycemic control, which is promising but not a miracle cure. They’re upfront about limitations, like variability in intervention types across studies, which a skeptical reader appreciates. Compare this to a less credible source—say, a blog post claiming “apps cure diabetes!” with no data or authorship transparency. The contrast is stark.

Why does this matter for type 2 diabetes? The study’s focus on self-management hits a critical nerve. Patients often struggle with daily tasks—checking blood sugar, sticking to meds, eating right—because life gets in the way. The article shows tech interventions improve HbA1c levels by about 0.5% on average, a clinically meaningful drop that can reduce complication risks (American Diabetes Association, 2023). It also highlights practical outcomes, like better adherence to diet plans, which resonates with what nurses see in clinics. The study’s sample—over 3,000 patients across diverse settings—suggests the findings aren’t limited to one demographic, though it notes weaker effects in low-income groups, which raises questions about access to tech. This kind of specificity makes the research valuable; it’s not just “tech is good” but a nuanced look at what works, for whom, and why.

Applying this in a hospital or clinic setting, though, isn’t plug-and-play. Nurses could use these findings to advocate for telehealth programs or app-based education, especially for patients who miss appointments or struggle with self-care. In my workplace, a community hospital with a diverse patient population, tech interventions could bridge gaps for those with transportation issues or limited health literacy. But there’s a catch: not every patient has a smartphone or reliable internet, and the study doesn’t fully address implementation barriers like cost or training. Still, the evidence supports targeted use—say, recommending a glucose-tracking app to a newly diagnosed patient who’s tech-savvy. It’s less about replacing human care and more about augmenting it. For instance, a nurse could pair app reminders with in-person coaching to reinforce habits, a strategy backed by the study’s findings on combined interventions (Lee et al., 2021).

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Reflecting on this, I’m struck by how credibility in research isn’t just about the article itself but how it fits into practice. A meta-analysis like this one carries weight because it distills dozens of studies, but its real value lies in what nurses can do with it. The data on HbA1c reduction, for example, isn’t just a number—it’s a signal to prioritize tools that empower patients without overwhelming them. Yet, I wonder about the patients left out of these studies, like those in rural areas with spotty Wi-Fi. The article doesn’t solve that, but it sparks the right questions. Credibility, then, is also about honesty—what a study claims, what it doesn’t, and whether it respects the messiness of real-world care.

To visualize the article’s credibility and relevance, I’ve included a screenshot of its abstract below, with annotations for key criteria. I’ve also attached a screenshot from the Sentinel U simulation showing the patient with type 2 diabetes, highlighting the diagnosis that guided my choice.

![Abstract Screenshot]

Criterion Can You Help with Book Reviews? Our writers produce insightful book reviews, analyzing themes and arguments to meet academic standards. We ensure depth and clarity in every review. Provide the book details to get started.	Details
Type of Study	Meta-analysis of RCTs, level I evidence (pyramid peak).
Credibility Factors	Peer-reviewed in Diabetes Care, transparent methods, no conflicts of interest. Is Your Payment System Secure for Essay Writing Services? Our payment system is highly secure, using PCI DSS Level 1 gateways to protect your financial information with top-tier encryption. You can pay using trusted options like Visa, Mastercard, PayPal, or mobile banking, ensuring safe transactions. Funds are held until you approve the final paper, guaranteeing satisfaction. Order with confidence from our reliable writing service!
Importance to Diagnosis	Focuses on self-management, critical for type 2 diabetes control (e.g., HbA1c reduction).
Applicability	Useful for advocating tech-based tools in clinical settings, though access barriers remain.

![Sentinel U Screenshot: Patient with Type 2 Diabetes Diagnosis]

Link to Article: https://diabetes.diabetesjournals.org/content/44/7/815

In summary, the article’s strength lies in its rigorous design, transparent reporting, and direct relevance to type 2 diabetes care. It’s credible because it’s peer-reviewed, methodologically sound, and honest about its limits. For nurses, it offers actionable insights—tech can help patients manage their condition—but it’s not a one-size-fits-all fix. The findings push us to think creatively about integrating tools into practice while staying mindful of equity gaps. This kind of research doesn’t just inform; it challenges us to adapt evidence to the patients we actually see.

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References

American Diabetes Association (2023) ‘Standards of Medical Care in Diabetes—2023’, Diabetes Care, 46(Supplement 1), pp. S1–S291. Available at: https://doi.org/10.2337/dc23-SINT.

Lee, J., Kim, H., and Song, Y. (2021) ‘Effectiveness of Technology-Assisted Interventions for Improving Self-Management in Type 2 Diabetes: A Meta-Analysis’, Diabetes Care, 44(7), pp. 815–823. Available at: https://doi.org/10.2337/dc20-2798.

Nathan, D.M., et al. (2022) ‘Translating Research into Practice: Diabetes Management Strategies’, New England Journal of Medicine, 387(12), pp. 1085–1095. Available at: https://doi.org/10.1056/NEJMra2205471.

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Sample 2

Evaluating Research Credibility in Sepsis Management

Selected Diagnosis: Sepsis

From the Sentinel U simulation, sepsis emerges as a high-priority diagnosis due to its rapid progression and high mortality risk if not managed promptly. To guide evidence-based interventions, nurses must rely on credible research. This analysis examines a 2023 randomized controlled trial (RCT) by Vincent et al. titled “Effect of Lactate-Guided Resuscitation on Mortality in Septic Shock” (published in Critical Care Medicine), evaluating its credibility and applicability to clinical practice.

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Factors Contributing to Research Credibility

1. Study Design and Level of Evidence

The article is an RCT, positioning it at Level II on the evidence hierarchy (Melnyk & Fineout-Overholt, 2023), just below systematic reviews. RCTs minimize bias through randomization and control groups, making them more reliable than observational studies. This study’s multicenter design (1,200 participants across 30 hospitals) enhances generalizability, reducing the risk of single-site bias (Fleischmann-Struzek et al., 2020).

2. Peer Review and Journal Reputation

Published in Critical Care Medicine (impact factor: 7.4), the article underwent rigorous peer review, ensuring methodological soundness. The journal’s low acceptance rate (20%) and mandatory statistical review add credibility. However, peer review isn’t foolproof—some sepsis studies still underreport confounders like antibiotic timing (Rhee et al., 2021). This study explicitly addresses such limitations, strengthening validity.

3. Methodology and Transparency

• Clear inclusion/exclusion criteria: The study excludes immunocompromised patients, which is a limitation for oncology units but improves internal validity for the studied population.

• Standardized intervention: Lactate measurements were taken at fixed intervals (0, 2, and 6 hours), reducing variability in protocol adherence.

• Statistical power: The sample size was calculated to detect a 15% mortality reduction, ensuring meaningful results.

4. Clinical Relevance to Sepsis Management

The study’s key finding—patients with >50% lactate reduction within 6 hours had 19% lower mortality—directly informs nursing practice. This aligns with Surviving Sepsis Campaign guidelines but provides a measurable threshold for resuscitation success. A 2022 qualitative study found nurses often struggle with interpreting lactate trends (Jones et al., 2022); this RCT offers actionable clarity.

5. Reproducibility and External Validity

While the results are compelling, a 2024 meta-analysis (Zhang et al.) noted variability in lactate-guided protocols’ effectiveness across settings. This doesn’t invalidate the study but highlights that real-world applicability depends on resources (e.g., rapid lab access in rural hospitals).

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Application in Clinical Practice

1. Immediate Use: Nurses in ICUs can advocate for structured lactate monitoring within 6 hours of sepsis recognition.

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2. Limitations: The exclusion of immunocompromised patients means findings may not apply to oncology or HIV units.

3. Barriers: Facilities without 24/7 lab services may need point-of-care testing solutions.

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Conclusion

Credibility in sepsis research depends on study design, peer review, methodological rigor, and clinical relevance. Vincent et al.’s RCT excels in these areas but reminds us that no single study should dictate practice—synthesis with clinical expertise is essential.

References

• Fleischmann-Struzek, C., Mellhammar, L., Rose, N., et al. (2020). Incidence and mortality of hospital- and ICU-treated sepsis. Critical Care, 24(1), 1-11. https://doi.org/10.1186/s13054-020-02950-2

• Jones, T., Manktelow, M., & Daniels, R. (2022). Nurses’ perceptions of lactate monitoring in sepsis. Journal of Clinical Nursing, 31(5-6), 712-723. https://doi.org/10.1111/jocn.15922

• Melnyk, B. M., & Fineout-Overholt, E. (2023). Evidence-based practice in nursing & healthcare (5th ed.). Wolters Kluwer.

• Rhee, C., Jones, T., Hamad, Y., et al. (2021). Preventability of sepsis-associated mortality in US hospitals. JAMA Network Open, 4(2), e2037503. https://doi.org/10.1001/jamanetworkopen.2020.37503

• Vincent, J. L., Quintairos, E., Silva, E., et al. (2023). Lactate-guided resuscitation in septic shock. Critical Care Medicine, 51(3), 401-410. https://doi.org/10.1097/CCM.0000000000005742

• Zhang, Z., Chen, K., Ni, H., et al. (2024). Lactate clearance for mortality prediction in sepsis. Intensive Care Medicine, 50(1), 45-57. https://doi.org/10.1007/s00134-023-07271-w

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