2.1 The Nursing Process: Critical Thinking in Care

The Nursing Process is the foundational framework for all clinical decision-making and patient care. It is a systematic, problem-solving approach used to identify, prevent, and treat actual or potential health problems and promote wellness. The process requires critical thinking and is dynamic, cyclic, and patient-centered. The acronym ADPIE represents its five sequential but overlapping steps: Assessment, Diagnosis, Planning, Implementation, and Evaluation.

1. Assessment: The Foundation of Care

Assessment is the deliberate and systematic collection, organization, validation, and documentation of patient data. Accurate assessment is crucial because all subsequent steps depend on it.

Types of Data

• Subjective Data (Symptoms): Information perceived only by the affected person. These are the patient's own words and feelings. Examples: "I feel nauseous," "My head hurts," or "I am anxious."
• Objective Data (Signs): Observable and measurable data that can be seen, heard, felt, or measured by the nurse. Examples: Blood pressure of 140/90 mmHg, cyanosis, wheezing, or emesis.

Sources of Data

• Primary Source: The patient. This is the most reliable source unless the patient is confused, unconscious, or too young.
• Secondary Sources: Family members, significant others, patient records, other healthcare professionals, and literature.

2. Diagnosis: Analyzing the Data

Nursing diagnosis is a clinical judgment about individual, family, or community responses to actual or potential health problems/life processes. Unlike a medical diagnosis, which identifies a disease, a nursing diagnosis focuses on the patient's response to the disease.

Types of Nursing Diagnoses

1. Actual Diagnosis: A problem that currently exists. It is formulated using the three-part PES system:
   • Problem (NANDA-I label)
   • Etiology (Related to / r/t)
   • Signs/Symptoms (As evidenced by / aeb)
   • Example: Ineffective Airway Clearance related to retained secretions as evidenced by adventitious breath sounds and productive cough.
2. Risk Diagnosis: A clinical judgment that a problem does not exist, but the presence of risk factors indicates that a problem is likely to develop unless nurses intervene. It uses a two-part format (PE).
   • Example: Risk for Falls related to altered mobility and use of assistive devices.
3. Health Promotion Diagnosis: Clinical judgment of a person's, family's, or community's motivation and desire to increase well-being.

3. Planning: Setting Priorities and Goals

Planning involves prioritizing nursing diagnoses, establishing patient goals, and selecting nursing interventions.

Prioritization of Care

When dealing with multiple patient needs or multiple patients, prioritizing is a matter of life and death. The PNLE extensively tests your ability to prioritize using specific frameworks:

Establishing Goals

Goals must be patient-centered and formulated using the SMART acronym:

• Specific
• Measurable
• Attainable
• Realistic
• Time-bound
• Example: "The patient will ambulate 50 feet in the hallway with the assistance of one person by the end of the shift."

4. Implementation: Executing the Plan

Implementation is the action phase where the nurse performs the nursing interventions identified in the planning phase.

Types of Nursing Interventions

• Independent: Actions that a nurse is permitted to initiate independently based on their knowledge and skills (e.g., repositioning a patient to prevent pressure ulcers, providing health education).
• Dependent: Actions that require an order from a physician or another healthcare professional (e.g., administering medications, inserting a foley catheter).
• Interdependent (Collaborative): Actions performed in collaboration with other healthcare team members (e.g., consulting with a dietitian or physical therapist).

5. Evaluation: Assessing Outcomes

Evaluation is a continuous process of determining the patient's progress toward goal achievement and the effectiveness of the nursing care plan.

During this phase, the nurse compares the patient's current health status with the desired outcomes. Based on this comparison, the nurse will determine whether the plan of care should be:

• Continued: If the goal is partially met and the interventions are still appropriate.
• Modified: If the goal is not met. The nurse must reassess the patient, identify the reasons for failure, and revise the diagnosis, goals, or interventions.
• Terminated: If the goal has been completely achieved.

Critical thinking is the engine that drives the nursing process. It requires nurses to continuously question, analyze, and interpret data rather than simply performing tasks mechanically. By mastering ADPIE, nurses ensure that their care is safe, scientifically based, and legally defensible.