Key Concepts of Critical Thinking in Nursing

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How many times did you hear the phrase “critical thinking” in your training to become a nurse? I must have heard it a thousand times, and I still don’t think I ever had a clear definition of it in my mind. What exactly is critical thinking? In this course, we will answer those questions and provide insight into how you can teach critical thinking in nursing. Also included are some self-guided exercises to practice critical thinking skills. After all this, you will be ranting about the vital importance of critical thinking, too.

What is Critical Thinking? 

Critical thinking is a term that is difficult to define because it is, by nature, somewhat subjective. The National Council for Excellence in Critical Thinking defines it as “the intellectually disciplined process of actively and skillfully conceptualizing, applying, analyzing, synthesizing, and/or evaluating information gathered from, or generated by, observation, experience, reflection, reasoning, or communication, as a guide to belief and action,” (4). That’s a long definition. Essentially, critical thinking is a way of thinking that allows a person to recognize important information and process it to solve problems. Let us break this down further into the key characteristics of critical thinkers.

How are “text-book smart” and “street smart” different from each other? 

Information Gathering 

There are some key characteristics of critical thinkers that appear consistently throughout the literature. The first of these attributes is information gathering (1). Critical thinkers are adept at gathering information from situations. They pay attention to details and pick up on the information that others may miss. Critical thinkers try to uncover the particulars to ensure they are well informed in their thinking and decision-making. Critical thinking is not a passive acceptance of information but rather an active collection of data. In terms of nursing, the critical thinker will place a lot of importance on their assessment. Rather than focusing simply on the tasks that need to be completed, critical thinking in nursing means staying in tune with assessment findings and changes. For example, if a patient has labs drawn, the critically thinking nurse will watch for the results of these labs to have the most up-to-date information and be alert to any changes. 

How do you incorporate “information gathering” into your routine?

Investigating 

Another important attribute of critical thinkers is their habit of investigating (1). They do not accept information at face value. They have a tendency to question information, especially that which contradicts other data. When critical thinkers see the information that doesn’t seem right or raises questions, they investigate it. This way of thinking goes together with seeking out information.  

With critical thinking in nursing, a nurse may ask themselves, “What else do I need to know? What comes next?” Rather than simply reporting one change to the physician, they think “what could this change represent? What other information would support this idea?” Continuing our example of following labs, if the nurse notices that the white blood cell count has increased, they will investigate to see why that might be. They would likely assess the patient for signs of infection, such as fever or chills.  

If you get the feeling that “something isn’t right,” what do you do next? 

Evaluation 

Critical thinkers also can evaluate the information they have gathered to create new ideas or hypotheses (1). This is the cognitive “connecting the dots” that allows critical thinkers to synthesize pieces of data into a complete picture of what is happening.  

Critical thinking in nursing doesn’t mean just collecting and reporting information; they process it and form ideas of their own. They ask questions like “how do these pieces of information fit together? Does this fit with any knowledge I already have?” Going back to our example, let’s say after the nurse notices the white blood cell count and assesses the patient, they find the patient has a fever and cloudy urine. Evaluation of this information would lead the nurse to think the patient has a urinary tract infection (UTI).  

Think of a time you diagnosed a patient’s problem. How did you come to this conclusion? 

Problem Solving 

An important aspect of critical thinking is problem solving. After gathering and evaluating information, the critical thinker tries to solve any problems that surface (1). This is a key point that separates critical thinking from merely being perceptive. Recognizing important information and problems is vital but being able to then think through and solve the problem is what makes critical thinking stand out. Looking at our example again, once the nurse has recognized symptoms consistent with a UTI they will begin formulating ideas on how to treat the problem. The first action would likely be notifying the provider of all the information gathered, the nurse’s hypothesis and a recommendation to solve the problem. You may recognize this format as being similar to Situation-Background-Assessment-Recommendation (SBAR). SBAR is a tool that is used to help guide critical thinking in nursing (1).  

Why is Critical Thinking Important? 

Now that we understand what exactly critical thinking means, let’s ask: why is it so important? You may have already formulated some ideas about how critical thinking in nursing can be helpful in practice. Critical thinking is a pattern of recognizing and reacting to the most important pieces of information. This is crucial in nursing, where we are presented with a plethora of information and expected to use the most important pieces to save lives and make people healthy. Now, let us get more specific on what areas would benefit from critical thinking in nursing.  

Patient Outcomes 

First, and maybe most important, is that critical thinking improves patient outcomes (3).  

Studies have shown that critical thinking skills in nurses are linked to lower hospital costs to patients, as well as to the facility thanks to lower in-hospital complications (3). Critical thinking by nurses also decreases the length of hospital stay (4). It has also been shown to improve outcomes and lower complications in surgical patients when the operating room nurses had a higher level of critical thinking (3). Despite these positive results and every nursing instructor ranting on the importance of critical thinking, there is a lack of research into the connection between critical thinking in nursing and patient outcomes. This is primarily because of the difficulty of assessing critical thinking skills specific to nurses and linking these skills to a measurable outcome without confounding factors (3). 

Staff Satisfaction 

You will be pleasantly surprised to learn that critical thinking in nursing leads to higher staff satisfaction! Research has found a strong correlation between critical thinking ability and perceived autonomy and job satisfaction in nurses (5). It is believed that critical thinking fosters autonomy or at least increases the sense of autonomy, which generally leads to higher job satisfaction. Critical thinking has been shown to improve confidence as well, and feeling confident in your work generally improves satisfaction as well (5). Interestingly, there has also been research that shows that critical thinking is linked to higher satisfaction with life decisions and less adverse life events (6). The idea here is that critically thinking through a decision before making it leads to less regret. So, this course will make you happier with work and help you make better life choices – you’re welcome. 

Efficiency 

Another important benefit of critical thinking is that it improves efficiency. Studies found that nurses with higher critical thinking skills work more efficiently (1). If you are thinking critically you are better able to prioritize and plan to avoid wasting time and energy. As we all know, nursing can be very demanding, and efficiency is important for tending to all our patients’ needs. Also, if the nurse manager of a unit has higher critical thinking skills, they implement changes that improve overall efficiency and morale (7). This highlights that critical thinking is important to all nursing forms and how one person practicing critical thinking can impact others. 

Healthcare Complexity 

A large reason why critical thinking has become so important is the ever-increasing complexity of healthcare. As we develop new treatments, we are always being asked to learn new processes and how to monitor patients receiving these treatments. Also, as the healthcare system improves treatments, the average patient is becoming older and has more co-morbidities (4). This adds to the complexity of each patient. Critical thinking is a great skill that aids in learning new tasks and comprehending more complicated patients. Nurses arguably have the most complex set of tasks, as we are often asked to perform some of the duties of other healthcare professions. Being adaptable to whatever changes come and taking on new responsibilities is a great benefit of critical thinking.  

Critical Thinking Education 

Now that we understand what critical thinking is and why it’s important let us discuss how critical thinking is taught. Critical thinking in nursing has become an integral part of many programs. Many healthcare institutions are looking for ways to incorporate critical thinking into their training process as well (1). Critical thinking is, however, an abstract concept and truly is a whole new way of thinking. So, how do we teach someone how to think? There are several factors that should be considered when trying to teach or learn critical thinking. 

Educator Influence 

First, educators have an important influence on the instruction of critical thinking skills. Educators that are effective at teaching critical thinking skills are open-minded, flexible, and supportive of their students (1). Showing flexibility and not firmly holding to one set way of doing things allows the students to adopt their own version of critical thinking. Role-modeling, guiding, and being knowledgeable about critical thinking also leads to a more effective educator (1). The educator should guide learners through their understanding of critical thinking while role-modeling critical thinking behaviors. 

Environment 

The learning environment also plays an important role in a nurse’s ability to learn critical thinking skills. The environment should be inclusive, non-judgmental, and allow for open discussion (1). This applies to both nursing schools and nurses being trained into a new unit. Feeling accepted on a unit allows for better learning and has a positive impact on critical thinking skills (1). It is important for nurses looking for a new work unit to find one with a welcoming, safe environment to aid in learning. On the other side, we should always strive as nurses to be inclusive and facilitate this type of environment as it benefits everyone. I was always told that “nurses eat their young,” and this attitude does not foster learning or growth. 

Education System 

The education system also impacts the teaching of critical thinking. Education systems, for one, largely shape the learning environment and educators. The education system should strive to create the type of learning environment where critical thinking skills can grow. Too much emphasis on classroom lectures and power dynamics between teachers and students hinders the development of critical thinking skills (1). Teaching critical thinking as its own subject also helps students learn the skill (1). 

Individual Factors 

Lastly, there are some individual factors that affect a person’s ability to cultivate critical thinking skills. Chief among these are a lack of confidence and fear of questioning an instructor (1). You can see how all these concepts seem to be centered on the fact that learners perform best when they are comfortable and have the freedom to discuss ideas. This is the central concept that should be understood and practiced by both mentor and mentee, as well as the education system as a whole. So, as we move into the next section teaching critical thinking skills, put yourself in a comfortable place – physically and mentally. Be sure to keep thinking of questions and follow your own ideas. 

Strategies to Promote Critical Thinking 

Now that we have an understanding of the right mindset to have when learning critical thinking, let us actually discover how to teach and learn it. Some common strategies that appear to be effective are targeted questioning, case studies and simulation (1). These are all approaches that require more than one person, so they are best practiced as part of training. If you have a colleague or mentor, you may try some of these strategies with them as well. 

Targeted Questioning 

First, we have targeted questioning, which is a tactic of asking questions in order to promote further thinking (8). This often involves asking questions of increasing difficulty to encourage the learner to think deeper about what the facts represent. It is the educator’s equivalent of a toddler asking “why?” over and over. The purpose is not to be annoying but to discover how deep down the rabbit hole the learner will go. Socratic questioning is another common type of targeted questioning designed to encourage learners to think further on the subject matter. This is commonly used in continuing education (check the italicized text), and helps to promote further thinking on facts rather than just accepting them at face value.  

Case Studies 

The next exercise that helps teach critical thinking is case studies. Case studies help promote critical thinking by allowing learners to think through a real-life scenario without the stressors of experiencing the scenario (1). 

It is important for learners to acknowledge how they might feel in that scenario so that they can be better prepared for the pragmatic aspects and the personal aspects of dealing with the presented problem (4). Case studies typically move chronologically through a scenario and often guide learners through the critical thinking behaviors of information gathering, investigating, evaluating and problem-solving. This helps build the mental framework of moving step-wise through a problem in order to find the best solution.  

Simulation 

Finally, simulation has proven to be useful in fostering critical thinking. Simulation, similar to case studies, promotes thinking through a scenario in a low-risk, low-stress environment with the added benefit of going through the physical motions involved (8). This allows the learner to physically experience the situation as well as think through the problems. This can help familiarize someone with the actual physical interventions involved so they are more comfortable when practiced in real scenarios. This is often used in life support training so that learners understand how to actually connect the defibrillator and which button to press, so there is less fumbling in the high-stress scenario where these motions are used (8).  

Critical Thinking Exercises 

We have examined ways to teach critical thinking skills to others, but what about developing critical thinking within ourselves? Luckily, there are a couple of exercises that can be practiced individually to foster critical thinking skills. This is helpful to those of us who are finished with our training and looking to better ourselves. Start with a desire to improve, as none of us are perfect. These exercises are best practiced by focusing on a specific scenario, particularly if there is a scenario that you didn’t fully grasp or that felt overwhelming.  

Concept Mapping 

The first exercise is concept mapping. Concept mapping is the practice of visually representing ideas on paper and showing connections between these ideas (2). They are often presented in either a hierarchical or web pattern with the key ideas at the top or center of the diagram, respectively. 

This helps a learner visualize their thinking process and further think about what connected and how. For example, let's think of our scenario earlier with the suspected UTI. We might see a change in vital signs as a central idea which connects us to signs of infection and then to interventions. This can help us see the progression of ideas, how they are connected, and possible other explanations. 

Reflective Writing 

Our final means of learning critical thinking in nursing is reflective writing. Reflective writing or journaling helps to identify thought patterns and promote critical thinking skills (1). Again, this is most useful for examining a specific situation. Breaking down a complex situation when you have more time to analyze it will help you learn more from that challenge. 

It may seem silly to write a journal but reflecting and processing your ideas is an important practice for growth. The act of formulating your thoughts into written words helps to make more sense of the ideas and feelings you have. You don’t have to keep a daily journal, but if you have a challenging shift it may help to reflect on it and write down your ideas. It is important to treat this exercise as a learning opportunity, and to not ruminate on failures or beat yourself up for not being perfect. 

Conclusion 

In summary, critical thinking in nursing is essential. It impacts our efficiency, the well-being of our patients, and our own happiness. Critical thinking is a broad way of thinking that involves gathering information, investigating, and evaluating the information in order to solve a problem. Critical thinking is best learned and practiced with an open mind. We can foster critical thinking in each other through case studies, simulations and targeted questioning. We can improve our critical thinking in nursing skills ourselves by practicing reflective writing and concept mapping. If you are a nurse educator or preceptor, I hope you have found something you can use to shape future nurses. If you are a nurse looking to better understand critical thinking, I hope you have learned something you can take to your nursing practice.  

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