Clinical Skills · Assessment of the Thorax, Lungs, Breast, and Lymphatic System

Physical Assessment of the Thorax

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On this page 9 sections

In 30 seconds
Why this matters
The college version
Eli explains
Worked example
Key takeaway
Check yourself
Study tools
Sources & references

In 30 seconds

The physical assessment of the thorax is where the anatomy from the previous topic meets the patient. Nurses use four techniques in a specific order — inspection, palpation, percussion, and auscultation () — and a systematic sequence (often posterior, then anterior, then lateral) so that nothing is missed and every area is compared side to side. The chest exam is done for many reasons: admission assessments, pre-operative checks, monitoring people with breathing problems, and investigating symptoms like cough, chest pain, or shortness of breath. The goal is to describe the chest's structure and function objectively — what you see, feel, hear, and percuss — and to pick up changes early.

Technique matters enormously: room setup (privacy, warmth), patient positioning (usually sitting upright), draping so you can see the chest, and comparing symmetrical areas on both sides. The exam content here is educational — actual sequences, draping rules, and documentation formats follow your program and facility policy.

Why this matters

Early detection: a systematic chest exam can reveal changes — unequal expansion, , diminished sounds — before they become emergencies.
Standard language: IPPA and location-based documentation let every team member know exactly what you found and where.
Patient safety: recognizing increased work of breathing (accessory muscle use, retractions) and reporting it promptly is a core nursing responsibility.
Exam foundation: the techniques here are used daily in med-surg, critical care, community health, and every nursing specialty that touches the respiratory system.
It is the practical payoff of the anatomy: landmarks, lobes, and reference lines only matter if you can use them to listen in the right places.

The college version

Core Concepts

Inspection

Look before you touch. Observe the person's general breathing: rate, rhythm, depth, and whether breathing looks effortless or labored. Note the shape of the chest (symmetry, any barrel shape, scoliosis or other curvature), the use of accessory muscles at rest, retractions (pulling in of the skin between the ribs or above the collarbones with breathing), and skin color and condition (pallor, cyanosis, scars, lesions). Check that the trachea sits in the midline. Look at the fingers for nail shape changes — is a slow-developing change worth documenting and reporting. Count the respiratory rate for a full minute when possible: people breathe differently when they know they are being watched, so count after conversation, without making it obvious.

Palpation

With warm hands, palpate the chest wall for tenderness, masses, or (a crackling sensation under the skin from air in the tissues — report it). Check : place your hands on the posterior chest with your thumbs at about the level of the 10th rib, ask the person to take a deep breath, and watch that both thumbs move symmetrically outward. Test : place the base of your palms or the ulnar edge of your hands on the chest and ask the person to say "99" (or another resonant phrase); you should feel vibrations that are similar on both sides. Fremitus is increased over denser (consolidated) tissue and decreased over air or fluid — describe what you feel and report asymmetry.

Percussion

Percussion produces sound from the tissue beneath your fingers. Technique: place the middle finger of your non-dominant hand (the pleximeter) flat against the chest, and tap its distal joint sharply with the tip of the middle finger of your dominant hand, using a quick wrist motion. Percuss symmetrical areas of the chest. Normal lung tissue gives — a low, clear, hollow sound. Compare sides: (louder, lower) suggests more air than usual; dullness (a thud-like note) suggests denser tissue such as fluid or consolidation; flatness is the most muted note, heard over very dense areas like muscle or bone. Percussion is a screening skill — the notes point to possibilities that the provider investigates further.

Auscultation

Auscultation is listening with a stethoscope. Use the diaphragm (with firm pressure) for breath sounds, warm the chest piece, and ask the person to breathe through the mouth, a little deeper than normal, without hyperventilating. Listen in a systematic pattern, comparing one side with the other at the same levels, from apex to base — anteriorly, posteriorly, and laterally, including the axillae. Normal breath sounds have three main patterns, each with its home location:

Tracheal: loud, high-pitched, heard over the trachea.
Bronchial: loud, hollow, heard over the manubrium.
Bronchovesicular: medium in intensity, heard near the main bronchi (1st–2nd intercostal spaces anteriorly, between the scapulae posteriorly).
Vesicular: soft, low-pitched, heard over most of the peripheral lung fields.

Adventitious (added) sounds — like crackles, wheezes, or rhonchi — are covered in depth in the next topic; here, the key skill is a clean, systematic listen that does not skip the bases or the axillae. Document what you hear: where, when in the breathing cycle, and whether it is equal on both sides.

Putting it together

A complete sequence: position and drape, inspect, palpate (expansion, fremitus, tenderness), percuss, then auscultate — posterior first (the lower lobes live there), then anterior, then lateral and axillary. Compare side to side at every step. At the end, document normal findings as well as abnormal ones, and report abnormal findings (unequal expansion, dullness, diminished sounds, labored breathing) to the provider. Remember stethoscope hygiene between patients, and remember the exam is one part of a bigger picture: combine it with vital signs, oxygen saturation, history, and the person's own report of how they are breathing.

Common Confusions

Do Not Confuse	With	Difference
Auscultation first	Auscultation last	IPPA: percussion and palpation change lung sounds, so listen last
Resonance	Hyperresonance	Resonance is normal lung; hyperresonance (louder, lower) means more air than usual
Dullness	Flatness	Dullness: fluid or dense tissue (report). Flatness: the most muted note, over very dense areas like bone
Vesicular sounds	Bronchial sounds	Vesicular are soft, low-pitched, peripheral; bronchial are loud, hollow, central (manubrium). Hearing bronchial sounds peripherally is abnormal
Increased fremitus	Decreased fremitus	Increased: denser tissue conducts better (consolidation). Decreased: air or fluid in the way (e.g., pneumothorax or effusion)
Barrel chest	Normal chest shape	A rounded, barrel-shaped chest is a finding associated with chronic air trapping — report and document

Eli explains

The same idea, in plain words

Explain it like I’m 10

The nurse checks your chest like a mechanic checks a car: they look at it, feel it, tap it, and listen to it — in that order, so they do not miss anything. They tap your back to hear what sound your lungs make (like tapping a wall to find a hollow spot) and use a stethoscope to listen to the air moving through your lungs on both sides.

Worked example

Ms. Reyes arrives with shortness of breath. You position her sitting upright, count her respiratory rate for a full minute after letting her settle, and inspect: she is using her accessory muscles, and her skin is pale. Palpation: chest expansion is symmetric, and fremitus feels equal side to side. Percussion: resonance everywhere except the right base, which sounds dull. Auscultation: breath sounds are present and clear except at the right base, where they are diminished. You document each finding objectively, note that she reports the shortness of breath started this morning with a cough, and report to the provider: "Right base dullness with diminished sounds, increased work of breathing." You have not named her disease — you have produced a precise, structured description that helps the provider decide what to investigate next. The systematic IPPA sequence is what made the report clean and complete.

Key takeaways

Order: inspection → palpation → percussion → auscultation (IPPA). Auscultation comes last because touching and tapping change the sounds.
Compare side to side at every step — symmetry is the baseline.
Count the respiratory rate for a full minute, after conversation, without making it obvious.
Tactile fremitus: increased with denser tissue (consolidation), decreased with air or fluid.
Percussion notes: resonance (normal lung) → hyperresonance (more air) → dullness (fluid or dense tissue) → flatness (very dense).
Use the stethoscope diaphragm for breath sounds; listen systematically apex to base, including the axillae.
Normal breath sound types: tracheal, bronchial, bronchovesicular, vesicular — each has its home location.
Accessory muscle use at rest, retractions, or unequal expansion = reportable findings.
Abnormal findings are reported to the provider; the exam screens and describes, it does not diagnose.
Scope and institutional variation: exact sequence, draping, and documentation follow facility policy and your program.

Check yourself

6 review questions from the chapter. Try each one, then open the answer.

What does IPPA stand for, and why is auscultation last?
Show answer
Inspection, palpation, percussion, auscultation. Auscultation is last because touching, tapping, and positioning change the breath sounds you would otherwise hear.
How do you test chest expansion, and what does asymmetry mean?
Show answer
Place your thumbs at about the 10th rib level posteriorly, ask for a deep breath, and watch both thumbs move outward symmetrically. Asymmetry is a reportable finding.
A patient's left base is dull to percussion. What does dullness suggest, and what should you do?
Show answer
Dullness suggests fluid or denser tissue instead of air-filled lung. Document it with location and report to the provider (you do not diagnose).
Where is each normal breath sound type heard (tracheal, bronchial, bronchovesicular, vesicular)?
Show answer
Tracheal: over the trachea. Bronchial: over the manubrium. Bronchovesicular: near the main bronchi (1st–2nd intercostal spaces anteriorly, between the scapulae posteriorly). Vesicular: over most peripheral lung fields.
Why do you count the respiratory rate for a full minute without the patient noticing?
Show answer
People alter their breathing when they know they are being watched; a full minute gives a truer rate and rhythm.
List three reportable findings from inspection of a patient with breathing difficulty.
Show answer
Examples: accessory muscle use at rest, retractions, pallor or cyanosis, barrel chest, unequal expansion, or pursed-lip breathing — document any combination and report it.

Keep learning

Ready to build on this? Continue to the next lesson.

Study tools & related lessonsKey vocabulary · Related

Key vocabulary

IPPA: Inspection, palpation, percussion, auscultation
Tactile fremitus: Vibrations felt on the chest wall while the person speaks
Resonance: The normal hollow, low sound of healthy lung on percussion
Hyperresonance: Louder, lower percussion note than normal
Dullness: Thud-like percussion note
Vesicular breath sounds: Soft, low-pitched normal breath sounds over peripheral lung
Bronchial breath sounds: Loud, hollow sounds normally heard over the manubrium
Crepitus: Crackling sensation under the skin from air in the tissues
Clubbing: Bulbous enlargement of the fingertips with a nail angle change
Chest expansion: Symmetric outward movement of the chest with a deep breath

Sources & references

openstax.org — Clinical Nursing Skills

This lesson was adapted from the open educational references above; their licenses and attributions are preserved. See Copyright & Licensing.

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