# A nurse is conducting a comprehensive assessment of a 45-year-old client admitted to the emergency department with a 3-day history of progressive shortness of breath and fatigue. The client has a medical history of hypertension and diabetes mellitus. Vital signs on admission are: temperature 98.6°F (37°C), heart rate 102 bpm, blood pressure 150/88 mmHg, and oxygen saturation 89% on room air. Which assessment technique should the nurse prioritize to obtain the most accurate baseline respiratory data?

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> subject: Fundamentals

## 문제

A nurse is conducting a comprehensive assessment of a 45-year-old client admitted to the emergency department with a 3-day history of progressive shortness of breath and fatigue. The client has a medical history of hypertension and diabetes mellitus. Vital signs on admission are: temperature 98.6°F (37°C), heart rate 102 bpm, blood pressure 150/88 mmHg, and oxygen saturation 89% on room air. Which assessment technique should the nurse prioritize to obtain the most accurate baseline respiratory data?

## 보기

1. Inspect the chest for symmetry and use of accessory muscles, then proceed with palpation and percuss
2. Begin with auscultation of breath sounds in all lung fields using systematic approach
3. Observe the client's overall respiratory pattern, rate, and effort before any physical contact **✔ 정답**
4. Start with percussion to determine lung boundaries and areas of consolidation

**정답: 3**

## 해설

Initial observation of respiratory pattern before physical contact provides the most accurate baseline data by avoiding alteration of natural breathing. A systematic approach (inspection, palpation, percussion, auscultation) follows.

## 심화 해설

Clinical Reasoning & Priority Assessment

The client presents with a 3-day history of progressive shortness of breath and fatigue, with current vital signs showing tachycardia (heart rate 102 bpm), hypertension (blood pressure 150/88 mmHg), and critically, hypoxemia (oxygen saturation 89% on room air). This clinical picture indicates a state of compromised oxygenation and potential respiratory distress. In the hierarchy of assessment techniques, the nurse must prioritize the least invasive method that yields critical baseline data without altering the client's physiological or psychological state.

Why Observation Comes First

The correct priority is to **observe the client's overall respiratory pattern, rate, and effort before any physical contact**. This approach is foundational to a comprehensive respiratory assessment for several pathophysiological and practical reasons:

• **Baseline Integrity:** Physical maneuvers such as palpation, percussion, and even auscultation with a cold stethoscope can alter a dyspneic client's natural breathing pattern. Anxiety and tactile stimulation may cause involuntary breath-holding, hyperventilation, or a stress-induced increase in heart rate and respiratory rate, masking the true resting baseline.

• **Immediate Visual Data:** Inspection allows the nurse to instantly gather life-threatening cues. Observing for nasal flaring, pursed-lip breathing, intercostal retractions, and the use of accessory muscles (sternocleidomastoid, scalene) provides direct evidence of increased work of breathing. The client's ability to speak in full sentences versus single words is a critical indicator of severity that can only be assessed through quiet observation.

• **Systematic Approach:** The standard sequence for physical assessment—inspection, palpation, percussion, auscultation—is deliberately structured. For the respiratory system specifically, beginning with a hands-off inspection respects the principle of moving from non-invasive to invasive techniques, ensuring that subsequent tactile and auditory findings are interpreted in the context of the client's unaltered state.

Analysis of Other Options

• **Option 1:** Inspecting the chest for symmetry and then proceeding with palpation and percussion is a correct sequence of techniques but is not the initial priority. The broader observation of overall respiratory pattern, rate, and effort must precede the focused inspection of chest wall mechanics.

• **Option 2:** Beginning with auscultation bypasses the critical visual inspection step. While auscultation provides essential data on air movement and adventitious sounds, it requires physical contact and a quiet environment, which can disrupt the spontaneous breathing pattern that should be assessed first.

• **Option 4:** Percussion is an advanced assessment technique used to identify underlying structures, such as fluid (dullness) or air trapping (hyperresonance). It is not a priority over observing the client's immediate respiratory effort and rate, which provide more urgent data on the severity of respiratory compromise.

Pathophysiological Context for the NCLEX-RN

A client with a history of hypertension and diabetes mellitus presenting with progressive dyspnea and an oxygen saturation of 89% is in a state of hypoxemic respiratory failure. The body's compensatory mechanisms are already activated, evidenced by tachycardia (attempting to increase cardiac output and oxygen delivery) and hypertension (a sympathetic nervous system response to stress and hypoxemia). Any additional stressor, including a rushed physical examination, can exacerbate this physiological strain. The nurse's role is to gather data without contributing to the decompensation. The initial observation period allows the nurse to mentally triage the severity—distinguishing between a client who is tachypneic but stable and one who is about to fatigue and enter acute respiratory failure. This clinical judgment directly informs the urgency of subsequent interventions, such as the immediate application of supplemental oxygen.

## 임상 시나리오

Clinical Guide: Prioritizing Respiratory Assessment

**Scenario:** A 45-year-old client with progressive dyspnea, tachycardia, and SpO2 89% on room air.

Assessment Priority: Observation First

- **Rationale:** In a dyspneic client, physical contact (palpation, percussion, auscultation) can trigger anxiety or a stress response, altering the natural respiratory rate, rhythm, and effort. This masks the true resting baseline.

- **Technique:** Stand at the bedside and visually assess the client for 1-2 minutes before touching them.

- **Key Visual Cues:** Note the general respiratory rate and pattern, use of accessory muscles (sternocleidomastoid, scalene), nasal flaring, pursed-lip breathing, intercostal retractions, and overall level of distress.

Correct Sequence for Respiratory Assessment

- **Inspection:** Observe rate, rhythm, depth, effort, and symmetry of chest movement.

- **Palpation:** Assess for tactile fremitus, chest wall tenderness, and subcutaneous emphysema.

- **Percussion:** Determine lung boundaries and identify areas of dullness (consolidation/effusion) or hyperresonance (pneumothorax).

- **Auscultation:** Listen to breath sounds systematically across all lung fields, comparing side-to-side.

Clinical Pearl

If a client is in obvious severe distress (e.g., tripoding, gasping), the sequence is modified: perform a rapid visual survey and immediately intervene with oxygen therapy and emergency support, deferring a full hands-on assessment until the client is stabilized.

## 핵심 개념

- **Hypoxemia** — Low oxygen saturation in arterial blood (SpO2 < 90%), indicating compromised oxygenation.
- **Inspection** — The first step of a physical assessment, involving visual observation to gather data without physical contact.
- **Accessory Muscles** — Muscles such as the sternocleidomastoid and scalenes used during respiratory distress to aid breathing.
- **Baseline Data** — Initial assessment findings against which subsequent changes in a client's condition are compared.

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