PICO is a mnemonic used to describe the four elements of a good clinical question. It stands for:
P - Patient/Problem/Population
I - Intervention
C - Comparison
O - Outcome
For Diagnosis, you may consider using:
P - Patient
I - Test
C - Standard
O - Outcome
F - Factors
O - Outcome (ex. Mortality)
Here are links for more information.
The databases listed on this page are excellent places to start a Nursing literature search. Please schedule a consultation if you have a specific research topic, and you would like some advice on either getting started or building a good search strategy.
Evidence-Based Practice (EBP): Evidence-based practice is the judicious use of the best research evidence (found in health sciences literature), clinical expertise (what the health care provider knows) and patient values (what the patient wants and believes) to create a plan of action regarding patient care. Evidence-based practice is an umbrella term that covers evidence-based medicine, evidence-based dentistry, evidence-based public health, evidence-based nursing and etc.
These are some of the publication types that are associated with higher levels of evidence. You may want to start at the top of the pyramid and work your way down.
Publication Types by Question Type: Different study types are suited to different questions. For example:
Most Clinical Questions: Meta-analyses, systematic reviews
Therapy: Randomized Controlled Trial
Diagnosis: Prospective, blind controlled trial compared to gold standard
Prognosis: Cohort study, case control, case series/case report