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EBP - Nursing

Resources for Evidence Based Practice, Professional Accountability, and Inter-professional Practice

Single Studies Definition

Studies represent unique research conducted to answer specific clincial questions.


Clinical Queries is a user-friendly search tool that permits clinicians to quickly and easily search for relevant clinical literature on etiology, prognosis, diagnosis and therapy of diseases and diagnostics.

Clinical Queries are a quick way to search through studies to find ones that are best evidence. The "higher levels of evidence" (systematic reviews, randomized controlled trials, etc) are included in the search.

CINAHL (EbscoHost)

Clinical Queries, designed for clinician use, allow users to limit searches with specific search strategies, to aid in retrieving scientifically sound and clinically relevant study reports indexed in CINAHL databases. Searches can be refined using specific search strategies designed to produce results in five research areas:

  • Therapy
  • Prognosis 
  • Review 
  • Qualitative
  • Causation (Etiology) 

As research may require different emphasis, three strategies are provided for each area.

  • High Sensitivity is the broadest search, to include ALL relevant material. It may also include less relevant materials.
  • High Specificity is the most targeted search to include only the most relevant result set, may miss some relevant materials. 
  • Best Balance retrieves the best balance between Sensitivity and Specificity.

To perform a search using Clinical Queries

  1. Enter the CINAHL database.
  2. Enter your search terms as you normally do (remember to use quotes to keep phrases together)
  3. Go to the Search Options and select the desired choices (from above) in the Clinical Query box.
  4. Click Search.


The PubMed Clinical Queries Page is designed to filter one search by three clinical research areas: Clinical Study CategoriesSystematic Reviews, and Medical Genetics.  Click on the Clinical Queries link below PubMed Tools on the main search page.

PubMed is the medical database (aka Medline) and is simple to search.


  • put quotes around search terms
    • can include more terms than the condition/disease
  • can focus clinical category (therapy, etiology, diagnosis, prognosis -- PICO question)
  • can retrieve fewer hits if you search Narrow rather than broad