Are you a nursing student who has an assignment to write about the PICO model? Then let the nursing assignment experts at My Assignment Services guide you to what is PICO model and how to use this model in your assessment tasks. You will get to know everything that you should know about the PICO model of evidence based nursing.

What actually is PICO?

In evidence-based nursing, PICO stands for -

P- Patient problem

I- Intervention

C- Comparison or control

O- Outcome

Why the PICO framework is used?

In nursing practice, you always need some evidence to take a decision. It is somewhat like the court, you cannot pass judgement without solid evidence. That is why when you get any question in nursing, you need to search and collect all the relevant evidence. But make no mistake because this is a long, tiring and time-consuming process. This makes the process very difficult.

That is why when you have an assignment question related to evidence-based nursing, you should use the PICO framework which is specially prepared for the evidence-based nursing practice.

What does each element in the PICO framework signify?

Let us discuss all the components of PICO one by one -

Patient problem

When you decide to diagnose the problem of the patient, you need all the information about the patient so that you can take the correct decision. This information can be -

  • The age of the patient
  • The gender of the patient
  • The ethnicity of the patient
  • What is the problem he/she is suffering from
  • What is the problem type, is it acute or chronic


As the name suggests, the intervention part will suggest the intervention techniques that should be adopted in order to make the patient’s health better.

The intervention can vary depending on the type of diagnosis and health issue of the patient. They can be -

  • Medicine
  • Yoga
  • Exercise
  • Yoga
  • Meditation
  • Therapy
  • Rest

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Comparison or control

When you have identified what the patient is suffering from and have laid out what you need to do so that the patient becomes better, you need to check if your intervention method is good or not.

Here, you need to decide if there is any comparison treatment that you should compare yours against. You can compare your treatment with -

  • Another medication
  • Another treatment like meditation and exercise


The name says outcome, that means you need to check if the result obtained from your intervention is expected or not. For example, if the expected outcome of your intervention was supposed to be relief from pain, you need to check if the treatment gave that outcome or not.

Here, you need to think about the -

  • Result that you want the treatment to show
  • Effects that you do not want to see
  • Any side effects that were not accounted for before

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About the Author

Keith Morris

Keith Morris

Keith Morris is a certified nurse who retired as a registered nurse after participating in a WHO campaign in Geneva. He is dedicated to helping students score good grades in their nursing courses and are offered a chance to help the people and establish a better healthcare community across the globe. He works as a nurse at a local clinic with underprivileged children and provides assignment guidance to the students. Reflection writing, aged care, Gibbs reflective cycle, cardiac nursing, pathophysiology, etc. are a few to name from his area of dominance.


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