Notes
Imagine you’re a nurse standing at the bedside of a patient. You’ve assessed their vital signs, asked questions, and gathered observations. Now comes a critical turning point: What does all this information mean? What action should you take next?
This is where Nursing Diagnosis steps in — it’s the bridge between assessment and intervention, the point where clinical judgment transforms into focused, purposeful care. Without a clear diagnosis, even the best assessment can lead nowhere. But with it, care becomes personalized, precise, and effective.
In nursing, we don’t just respond to diseases—we respond to human experiences. That’s why a nursing diagnosis goes beyond medical labels. It focuses on how a patient feels, functions, and copes with their condition. Whether it’s pain, anxiety, risk for falls, or impaired mobility, your nursing diagnosis guides everything that follows, from planning interventions to evaluating outcomes.
Throughout this topic, we’ll break down how to analyze data, formulate accurate diagnoses using NANDA-I taxonomy, and avoid common pitfalls. We’ll use real-life examples, memory tools, and interactive prompts to make the process feel like second nature.
By mastering nursing diagnosis, you’re not just checking off a box—you’re developing the critical thinking needed to care deeply, act confidently, and advocate effectively.
NANDA-I Classification System
What Is NANDA-I?
The NANDA International (NANDA-I) Classification System is a standardized and systematic taxonomy designed to organize nursing diagnoses. It serves as the common language for nurses by providing clear definitions and categorizations that help ensure consistency and accuracy in patient care. In essence, it turns the art of nursing assessment into a science by bridging the gap between what a nurse observes and the planned interventions based on those observations.
Key Points:
-
Standardized Language: Ensures that all healthcare providers “speak the same language” when referring to patient conditions.
-
Organization: Categorizes diagnoses into distinct domains and classes (e.g., health promotion, nutrition, elimination, activity/rest).
-
Foundation for Care: Provides a structured framework for developing patient-centered care plans.
Breaking Down the System: Domains and Classes
Imagine the NANDA-I system as a well-organized filing cabinet. Each domain represents a broad category of patient care concerns—like folders labeled “Nutrition” or “Safety”—while classes within these domains narrow down the focus further. This organization makes it easier for nurses to quickly find relevant diagnoses and ensure that nothing is overlooked.
For example, a patient with a risk for falls might be placed under the Safety/Protection domain. The systematic nature of NANDA-I not only streamlines the diagnostic process but also supports critical decision-making and effective communication among the healthcare team.
Relatable Example
Consider a nurse working in a busy hospital setting. After conducting a thorough assessment on Mrs. Smith, who recently underwent surgery, the nurse observes that she is experiencing confusion and disorientation. Using the NANDA-I classification, the nurse identifies a diagnosis under the Neurological domain that focuses on “Acute Confusion.” This clear categorization helps the nurse develop a targeted care plan—such as increased monitoring, orientation strategies, and safety measures—to address Mrs. Smith’s unique needs.
Memory Aid: Remembering PES
A practical way to remember how to structure a nursing diagnosis within the NANDA-I framework is the mnemonic PES:
-
Problem – What is the actual issue (e.g., Acute Confusion)?
-
Etiology – What factors contribute to the problem (e.g., post-operative effects, medications)?
-
Signs/Symptoms – What evidence supports the presence of the problem (e.g., disorientation, verbalization of confusion)?
Using PES as your guide helps break down complex patient data into manageable, actionable parts.
Interactive Student Worksheet
To help you actively engage with the material, try the following short worksheet:
-
Identify the Components:
-
Write down the three components of a PES statement.
-
Hint: Use the mnemonic PES to help you recall the components.
-
-
Practice Classification:
-
Think of a patient scenario (real or fictional). What would be an appropriate nursing diagnosis?
-
Identify which NANDA-I domain you would classify this diagnosis under and briefly justify your choice.
-
-
Reflect on Standardization:
-
How might having a standardized classification system like NANDA-I improve communication and patient outcomes in your clinical practice?
-
Write a brief paragraph (3-4 sentences) reflecting on the importance of standardization in nursing.
-
Take a few minutes to complete this worksheet and consider discussing your answers with classmates or mentors to deepen your understanding.
🧠 Types of Nursing Diagnoses
(Actual, Risk, and Health Promotion)
After gathering your assessment data, the next critical step is choosing the right type of nursing diagnosis. Why? Because just like a GPS needs to know your location before giving directions, your care plan depends on where your patient currently stands—are they in trouble now, at risk of trouble, or aiming for better health?
NANDA-I recognizes three main types of nursing diagnoses, each serving a different purpose in the care plan:
1. 🩺 Actual Nursing Diagnosis
This diagnosis is based on present and observable problems that are supported by clear evidence—your patient is experiencing it right now.
Structure:
PES format is used (Problem, Etiology, Signs/Symptoms)
Example:
Acute Pain related to surgical incision as evidenced by grimacing and verbal reports of pain (8/10).
→ The patient is clearly in pain now. You see it. They feel it. You act on it.
2. ⚠️ Risk Nursing Diagnosis
This is used when a potential problem hasn’t happened yet, but the patient is highly vulnerable to it based on known risk factors. There are no signs or symptoms yet, just contributing risk factors.
Structure:
Only includes Problem and Etiology (No Signs/Symptoms).
Example:
Risk for Falls related to impaired mobility and post-anesthesia effects.
→ The patient hasn’t fallen—but the conditions make a fall likely if you don’t intervene.
3. 🌱 Health Promotion Diagnosis
This focuses on the patient’s readiness to improve well-being. It’s used when the patient has no current problem, but expresses motivation to increase their health status.
Structure:
Usually begins with “Readiness for enhanced…”
Example:
Readiness for enhanced Nutrition as evidenced by expressed desire to eat healthier and attend dietary counseling.
→ The patient is stable and wants to do better. This is proactive, not reactive nursing.
🧠 Memory Trick: A-R-H
Think of the types as “ARH you diagnosing correctly?”
-
A = Actual – It’s happening now
-
R = Risk – It might happen
-
H = Health Promotion – The patient wants to get better
Easy, right? A-R-H keeps your diagnoses clear and purposeful.
✏️ Mini Worksheet: Practice Classifying
Match the following patient scenarios with the correct type of diagnosis:
1. A patient with shortness of breath and low O₂ sat after surgery.
2. A frail elderly patient who hasn’t fallen but is unsteady when walking.
3. A young adult asking for help creating a workout and meal plan.
(Answers: 1. Actual, 2. Risk, 3. Health Promotion)Show Answer Key
🧩 Formulating Diagnoses Using the PES Format
Turning Patient Data Into Precise, Actionable Diagnoses
You’ve gathered assessment data. You’ve categorized the diagnosis type. Now comes the most critical skill—putting it all together. That’s where the PES format shines. It’s your blueprint for writing a clear, complete, and NANDA-I approved nursing diagnosis.
✨ What is the PES Format?
PES stands for:
-
P = Problem (NANDA-I approved diagnosis label)
-
E = Etiology (Cause or “related to” factor)
-
S = Signs and Symptoms (Evidence or “as evidenced by” statements)
Think of it as writing a mini patient story:
What’s wrong, why it’s happening, and how you know.
🔍 Breakdown of Each Component
✅ P = Problem
This is the NANDA-I approved diagnostic label that identifies the patient’s condition or response.
Example: Impaired Physical Mobility
🔗 E = Etiology
This is the cause or contributing factor—why the problem is happening. It must be something nursing can address (avoid medical diagnoses here).
Example: related to pain and decreased muscle strength
🔬 S = Signs and Symptoms
This is the proof that the problem exists. It’s pulled directly from subjective and objective assessment data.
Example: as evidenced by difficulty turning in bed, grimacing with movement, and verbal reports of stiffness
🧠 Memory Trick:
“P-E-S = Problem Explains Symptoms”
If your diagnosis reads like:
“[Problem] related to [Etiology] as evidenced by [Symptoms],”
…you’re doing it right!
🧾 Full PES Example:
Impaired Physical Mobility related to pain and decreased muscle strength as evidenced by difficulty turning in bed, grimacing with movement, and verbal reports of stiffness.
🔹 Clear
🔹 Evidence-based
🔹 Patient-specific
❌ Common Pitfalls to Avoid
-
Using medical diagnoses in the etiology (e.g., saying “related to stroke” instead of “related to muscle weakness following neurological impairment”).
-
Skipping signs/symptoms – Don’t just say “related to…” and leave it there.
-
Being vague – Use specific and observable data.
✏️ Mini Worksheet: Build a PES Diagnosis
Scenario:
Ms. Lopez is recovering from abdominal surgery. She reports pain of 7/10, guards her abdomen, and avoids movement. You note shallow breathing and reluctance to reposition.
Task:
Write a PES-formatted nursing diagnosis using this data.
Tip: Start with “Acute Pain” and build from there.
Acute Pain related to surgical incision and tissue trauma as evidenced by pain rating of 7/10, abdominal guarding, shallow breathing, reluctance to reposition, and limited mobility.Show Answer Key
🎯 Prioritization of Nursing Diagnoses
What Do You Tackle First—and Why It Matters
Nursing isn’t just about knowing what the patient needs—it’s about knowing what to do first. Prioritization ensures that critical needs are addressed promptly to save lives, prevent complications, and promote healing.
To do this effectively, nurses use two key frameworks:
-
Maslow’s Hierarchy of Needs
-
The ABCs of Emergency Care
Let’s break them down in a way that makes it easy to remember and apply.
1️⃣ Maslow’s Hierarchy of Needs: From Survival to Self-Growth
Maslow’s pyramid organizes human needs into five levels—from the most basic to the most advanced. Nursing diagnoses should be prioritized from the bottom up because lower-level needs must be met before higher ones.
Maslow’s Levels (from bottom to top):
-
Physiological Needs – Air, food, water, sleep, elimination
-
Safety Needs – Protection, stability, fall prevention
-
Love & Belonging – Social interaction, family support
-
Esteem – Confidence, independence
-
Self-Actualization – Personal growth, learning, meaning
🩺 Nursing Focus: Always prioritize life-sustaining needs like oxygenation, circulation, nutrition, and pain first.
Example:
-
Acute Pain (Physiological) takes priority over
-
Disturbed Body Image (Esteem)
2️⃣ The ABCs: Emergency Prioritization Tool
When time is critical or the patient is unstable, shift to the ABCs:
-
A = Airway – Is the airway open and clear?
-
B = Breathing – Is the patient breathing adequately?
-
C = Circulation – Is there adequate blood flow, perfusion, and heart function?
🔴 Any threat to airway or breathing trumps everything else.
Example:
-
A patient with Ineffective Airway Clearance is a higher priority than one with Impaired Physical Mobility.
🧠 Memory Trick:
Use “ABCs before Maslow’s”
If the patient is unstable or acutely deteriorating, start with ABCs.
If the patient is stable, apply Maslow’s hierarchy to decide next steps.
🔄 Combined Prioritization Example
Scenario:
You are caring for four patients:
-
Mr. Jones – Reports 8/10 pain after abdominal surgery
-
Ms. Lee – Has wheezing and low oxygen saturation
-
Mr. Gomez – Feels anxious about an upcoming diagnosis
-
Mrs. Thomas – Has dry skin and requests lotion
🧠 Correct Priority Order:
-
#2 (Ms. Lee) – ABC: Breathing problem (Ineffective Airway Clearance)
-
#1 (Mr. Jones) – Pain = Physiological
-
#3 (Mr. Gomez) – Anxiety = Safety/Emotional
-
#4 (Mrs. Thomas) – Comfort = Least urgent
✏️ Mini Worksheet: Rank These Diagnoses
Put the following nursing diagnoses in correct priority order:
-
Risk for Falls
-
Ineffective Breathing Pattern
-
Anxiety
-
Imbalanced Nutrition: Less than Body Requirements
(Answer Key: 1. Ineffective Breathing Pattern, 2. Imbalanced Nutrition, 3. Risk for Falls, 4. Anxiety)Show Answer Key
✅ Validation and Documentation of Nursing Diagnoses
Making It Accurate. Making It Official.
Formulating a nursing diagnosis is powerful—but it doesn’t end there. Before it becomes part of the care plan, it must be validated for accuracy and then documented correctly to communicate it to the entire healthcare team.
Think of it as a double-check before takeoff and then logging it into the flight plan so everyone stays on course.
🔍 Step 1: Validation – Are You Right?
Validation means verifying that your diagnosis truly reflects the patient’s condition.
It ensures that:
-
The diagnosis is supported by accurate, complete assessment data.
-
There’s no bias, guesswork, or assumptions.
-
You aren’t overlooking or misinterpreting key findings.
🧠 Validation Questions to Ask:
-
Do the subjective and objective data match the diagnosis?
-
Did I consider all possible contributing factors?
-
Could another issue explain these symptoms more accurately?
-
Is there enough evidence to support this diagnosis?
🧠 Real-Life Example:
You write:
Risk for Infection related to surgical incision.
✅ But have you checked:
-
Is the wound red or draining?
-
Are the labs (WBCs) elevated?
-
Is the patient immunocompromised?
If not, you might need to reconsider or gather more data.
🖋️ Step 2: Documentation – Make It Count
Once validated, the diagnosis must be clearly and legally recorded in the patient’s record. This allows all healthcare professionals to:
-
Understand the patient’s needs,
-
Plan and coordinate care,
-
Track outcomes and response to interventions.
📋 Guidelines for Documenting Nursing Diagnoses:
-
Use standard NANDA-I terminology.
-
Include the full PES statement (for actual diagnoses).
-
Place it in the correct section of the nursing care plan or EHR.
-
Keep it objective and specific—avoid vague terms or unverified assumptions.
Example:
✅ Correct: “Impaired Skin Integrity related to immobility as evidenced by stage II pressure ulcer on sacrum.”
❌ Incorrect: “Patient’s skin is bad and could get worse.”
📌 Why It Matters
-
🛡️ Legal Protection: Your documentation is part of the patient’s legal record.
-
🔄 Continuity of Care: Helps shift nurses, doctors, and therapists stay aligned.
-
🎯 Evaluation: Enables review of whether interventions are working.
🧠 Memory Trick: “V.D.” for Victory in Diagnosis
-
V = Validate: Are you sure it fits?
-
D = Document: Is it clear, correct, and complete?
✏️ Mini Worksheet: Validation & Documentation Practice
Scenario:
Mr. Ramirez is post-op day 2 after a hip replacement. He avoids turning in bed, reports pain 7/10, and has a reddened sacral area.
Task:
-
Validate: What assessment data supports a skin-related diagnosis?
-
Document: Write a full PES statement for this diagnosis.
-
What section of the care plan would this belong to?
📝 Comprehensive & Interactive Worksheet
📍Instructions: Apply what you’ve learned from the lecture. Think critically and answer the following based on real-life application and clinical reasoning.
Part 1: Match the Diagnosis Type
Match each scenario to the correct type of nursing diagnosis:
Scenario | Type (Actual / Risk / Health Promotion) |
---|---|
1. A patient reports abdominal pain rated 9/10, with guarding and grimace | |
2. A patient recovering from stroke who has difficulty swallowing | |
3. A patient newly diagnosed with diabetes seeking guidance on lifestyle | |
4. An elderly client unsteady when walking, but no fall has occurred |
Show Answer Key
Part 2: Write the PES Statement
Based on the following assessment data, formulate a complete PES statement:
Mrs. Cruz is 2 days post-op. She refuses to turn in bed, reports pain of 8/10, and her sacral area is red and tender.
Impaired Skin Integrity related to unrelieved pressure and immobility as evidenced by sacral redness and tenderness, refusal to turn in bed, and reported pain of 8/10.Show Answer Key
Part 3: Prioritization Challenge
Rank the following nursing diagnoses in the correct order of priority:
-
Anxiety
-
Risk for Falls
-
Impaired Gas Exchange
-
Imbalanced Nutrition: Less Than Body Requirements
Correct priority order based on ABCs and Maslow’s: Impaired Gas Exchange – ABC: breathing issue → life-threatening Imbalanced Nutrition: Less Than Body Requirements – Physiological need Risk for Falls – Safety issue, but not currently occurring Anxiety – Psychosocial concern, lower priority than physical needsShow Answer Key
Part 4: Reflection Prompt
Why is validating and documenting nursing diagnoses essential to safe patient care?
Write a brief paragraph (2–4 sentences).
Validating nursing diagnoses ensures that they are accurate and based on comprehensive, factual assessment data, reducing the risk of errors in patient care. Documentation provides a clear, legal record of the nurse’s clinical judgment, promotes continuity of care among healthcare providers, and supports the development of appropriate interventions. Together, they uphold patient safety and professional accountability.Show Answer Key
🧠 Memory Trick Recap Table
Concept | Memory Trick |
---|---|
Types of Diagnoses | ARH – Actual, Risk, Health Promotion |
PES Format | Problem Explains Symptoms |
Prioritization | ABCs before Maslow |
Validation & Documentation | V.D. = Validate, then Document |
❓ Frequently Asked Questions (Student-Searched FAQs)
Q1: Do I need to memorize all NANDA-I diagnoses for the NCLEX?
A: No. You don’t need to memorize every diagnosis. You need to understand how to select and apply the correct diagnosis using cues from patient data.
Q2: Can I use medical terms (e.g., pneumonia) in my nursing diagnosis?
A: No. Avoid using medical diagnoses. Instead, focus on the nursing response, like Impaired Gas Exchange or Ineffective Airway Clearance.
Q3: What if more than one diagnosis applies to a patient?
A: Use prioritization frameworks (ABCs and Maslow) to decide which diagnosis takes precedence based on urgency and safety.
Q4: Can I just write the NANDA label alone as a diagnosis?
A: Only for risk and health promotion diagnoses. Actual diagnoses need full PES format (problem, etiology, signs/symptoms).
Q5: Where do I document the nursing diagnosis?
A: In the nursing care plan section of the electronic health record (EHR) or patient chart, using approved terminology and full statements.
📚 Authoritative References
-
NANDA International (2021). NANDA-I Nursing Diagnoses: Definitions and Classification 2021–2023. Thieme Publishing.
-
Wilkinson, J. M. (2016). Nursing Diagnosis Handbook: An Evidence-Based Guide to Planning Care (11th ed.). Elsevier.
-
Doenges, M. E., Moorhouse, M. F., & Murr, A. C. (2019). Nursing Diagnosis Manual: Planning, Individualizing, and Documenting Client Care (6th ed.). F.A. Davis.
-
Potter, P. A., Perry, A. G., Stockert, P., & Hall, A. (2021). Fundamentals of Nursing (10th ed.). Elsevier.
-
American Nurses Association (ANA). Nursing: Scope and Standards of Practice.