SHADOWHEALTH RESPIRATORY CONCEPT LAB ACTUAL
COMPLETE SOLUTION 2026/2027 | Breath Sound
Identification | Assessment Techniques | A+ Graded - Pass
Guaranteed
Section 1: Breath Sounds Identification (10 Questions)
Q1: [Audio: A high-pitched, musical, whistling sound heard primarily during expiration]
Based on the audio clip, which breath sound is the nurse hearing?
● A. Crackles
● B. Rhonchi
● C. Wheezes [CORRECT]
● D. Pleural friction rub
Correct Answer: C
Rationale: Wheezes are continuous, high-pitched, musical sounds produced by
narrowed airways (bronchoconstriction, secretions, or edema). They are typically louder
during expiration because airway narrowing increases as lung volume decreases.
Crackles are discontinuous popping sounds, rhonchi are low-pitched snoring sounds,
and pleural friction rubs are grating sounds synchronous with respiration. Wheezes are
characteristic of asthma, COPD, and bronchospasm.
Q2: [Audio: Discontinuous, high-pitched, popping sounds heard late in inspiration,
sounding like hair being rolled between fingers near the ear] Which breath sound is
described?
● A. Coarse crackles
● B. Fine crackles [CORRECT]
, ● C. Rhonchi
● D. Stridor
Correct Answer: B
Rationale: Fine crackles (formerly called rales) are high-pitched, short, discontinuous
popping sounds heard during late inspiration. They result from the sudden opening of
deflated small airways and alveoli (delayed inspiratory opening). The classic description
is similar to Velcro being pulled apart or hair rolling near the ear. Fine crackles indicate
interstitial fluid or fibrosis (pulmonary edema, early pneumonia, interstitial lung
disease). Coarse crackles are lower-pitched and heard earlier in inspiration.
Q3: [Audio: Low-pitched, continuous, snoring or gurgling sounds heard throughout
inspiration and expiration, often clearing with coughing] Identify this adventitious breath
sound.
● A. Wheezes
● B. Fine crackles
● C. Rhonchi [CORRECT]
● D. Pleural friction rub
Correct Answer: C
Rationale: Rhonchi are continuous, low-pitched, sonorous sounds caused by air moving
through secretions in large airways (trachea, bronchi). They have a snoring/gurgling
quality and often change or clear with coughing because they result from mucus that
can be mobilized. Unlike wheezes (high-pitched), rhonchi indicate secretions rather than
bronchospasm. They are common in bronchitis, pneumonia, and COPD with mucus
production.
Q4: [Audio: Harsh, hollow, tubular sounds heard over the trachea and larynx, with
expiration lasting longer than inspiration] This represents which normal breath sound?
● A. Vesicular
, ● B. Bronchovesicular
● C. Bronchial [CORRECT]
● D. Amphoric
Correct Answer: C
Rationale: Bronchial (tracheal) breath sounds are normal when heard over the trachea
and larynx. Characteristics include: loud, high-pitched, harsh/hollow quality; inspiration <
expiration (1:2 or 1:3 ratio); and audible pause between phases. If heard over peripheral
lung fields, bronchial sounds indicate consolidation (pneumonia, tumor) allowing central
airway sounds to transmit through solid tissue. Vesicular sounds are soft and breezy
with I>E ratio; bronchovesicular have equal I=E phases.
Q5: [Audio: Soft, breezy, low-pitched sounds heard over peripheral lung fields, with
inspiration longer than expiration] Identify this normal breath sound.
● A. Bronchial
● B. Vesicular [CORRECT]
● C. Bronchovesicular
● D. Adventitious
Correct Answer: B
Rationale: Vesicular breath sounds are the normal sounds heard over most lung fields
(peripheral lung tissue). Characteristics: soft, low-pitched, rustling/breezy quality;
inspiration > expiration (3:1 or 4:1 ratio); no pause between phases. Produced by air
moving through smaller airways and alveoli. Diminished vesicular sounds indicate
shallow breathing, obstruction, pneumothorax, or pleural effusion. Absent sounds
suggest complete obstruction or consolidation distant from chest wall.
Q6: [Audio: A grating, creaking, or scratching sound synchronous with respiration, heard
best during inspiration, not affected by coughing] Which sound is the nurse
auscultating?
COMPLETE SOLUTION 2026/2027 | Breath Sound
Identification | Assessment Techniques | A+ Graded - Pass
Guaranteed
Section 1: Breath Sounds Identification (10 Questions)
Q1: [Audio: A high-pitched, musical, whistling sound heard primarily during expiration]
Based on the audio clip, which breath sound is the nurse hearing?
● A. Crackles
● B. Rhonchi
● C. Wheezes [CORRECT]
● D. Pleural friction rub
Correct Answer: C
Rationale: Wheezes are continuous, high-pitched, musical sounds produced by
narrowed airways (bronchoconstriction, secretions, or edema). They are typically louder
during expiration because airway narrowing increases as lung volume decreases.
Crackles are discontinuous popping sounds, rhonchi are low-pitched snoring sounds,
and pleural friction rubs are grating sounds synchronous with respiration. Wheezes are
characteristic of asthma, COPD, and bronchospasm.
Q2: [Audio: Discontinuous, high-pitched, popping sounds heard late in inspiration,
sounding like hair being rolled between fingers near the ear] Which breath sound is
described?
● A. Coarse crackles
● B. Fine crackles [CORRECT]
, ● C. Rhonchi
● D. Stridor
Correct Answer: B
Rationale: Fine crackles (formerly called rales) are high-pitched, short, discontinuous
popping sounds heard during late inspiration. They result from the sudden opening of
deflated small airways and alveoli (delayed inspiratory opening). The classic description
is similar to Velcro being pulled apart or hair rolling near the ear. Fine crackles indicate
interstitial fluid or fibrosis (pulmonary edema, early pneumonia, interstitial lung
disease). Coarse crackles are lower-pitched and heard earlier in inspiration.
Q3: [Audio: Low-pitched, continuous, snoring or gurgling sounds heard throughout
inspiration and expiration, often clearing with coughing] Identify this adventitious breath
sound.
● A. Wheezes
● B. Fine crackles
● C. Rhonchi [CORRECT]
● D. Pleural friction rub
Correct Answer: C
Rationale: Rhonchi are continuous, low-pitched, sonorous sounds caused by air moving
through secretions in large airways (trachea, bronchi). They have a snoring/gurgling
quality and often change or clear with coughing because they result from mucus that
can be mobilized. Unlike wheezes (high-pitched), rhonchi indicate secretions rather than
bronchospasm. They are common in bronchitis, pneumonia, and COPD with mucus
production.
Q4: [Audio: Harsh, hollow, tubular sounds heard over the trachea and larynx, with
expiration lasting longer than inspiration] This represents which normal breath sound?
● A. Vesicular
, ● B. Bronchovesicular
● C. Bronchial [CORRECT]
● D. Amphoric
Correct Answer: C
Rationale: Bronchial (tracheal) breath sounds are normal when heard over the trachea
and larynx. Characteristics include: loud, high-pitched, harsh/hollow quality; inspiration <
expiration (1:2 or 1:3 ratio); and audible pause between phases. If heard over peripheral
lung fields, bronchial sounds indicate consolidation (pneumonia, tumor) allowing central
airway sounds to transmit through solid tissue. Vesicular sounds are soft and breezy
with I>E ratio; bronchovesicular have equal I=E phases.
Q5: [Audio: Soft, breezy, low-pitched sounds heard over peripheral lung fields, with
inspiration longer than expiration] Identify this normal breath sound.
● A. Bronchial
● B. Vesicular [CORRECT]
● C. Bronchovesicular
● D. Adventitious
Correct Answer: B
Rationale: Vesicular breath sounds are the normal sounds heard over most lung fields
(peripheral lung tissue). Characteristics: soft, low-pitched, rustling/breezy quality;
inspiration > expiration (3:1 or 4:1 ratio); no pause between phases. Produced by air
moving through smaller airways and alveoli. Diminished vesicular sounds indicate
shallow breathing, obstruction, pneumothorax, or pleural effusion. Absent sounds
suggest complete obstruction or consolidation distant from chest wall.
Q6: [Audio: A grating, creaking, or scratching sound synchronous with respiration, heard
best during inspiration, not affected by coughing] Which sound is the nurse
auscultating?
