Loud drum-like high pitch sounds on percussion are known as?

Appeared in: DSSSB -28 August 2019 (Shift-2)

Explanation

Tympany is the correct term for a loud, high-pitched, drum-like sound heard during percussion.
This sound is characteristic of air-filled spaces.
It is normally heard over the stomach and intestines.
In the context of the chest, a tympanic note can indicate a large pneumothorax (collapsed lung).

Option A: Resonance is a low-pitched, hollow sound, not high-pitched and drum-like. It is the expected sound over normal, healthy lungs.
Option B: Crackles are sounds heard during auscultation with a stethoscope, not sounds produced by percussion. They indicate fluid or secretions in the airways.
Option C: Hyperresonance is a very loud, low-pitched, booming sound, which is different from the high-pitched, drum-like quality of tympany. It indicates an excess of air.

Clinical Relevance

Nursing practice connection: This is primarily an exam-oriented knowledge point with limited direct bedside application, so retain Identification of percussion sounds in physical assessment as background academic context rather than a clinical decision trigger.
Percussion is a fundamental nursing skill used to assess the condition of underlying organs and tissues without invasive procedures.
Identifying an abnormal percussion note (e.g., dullness over a lung field that should be resonant) can be an early sign of pathology like pneumonia, pleural effusion, or a tumor, prompting further investigation.
What if? If a nurse percusses the abdomen and hears widespread dullness instead of the expected tympany, it could signify ascites (fluid accumulation), a mass, or an enlarged organ, requiring notification of the healthcare provider.

How to Approach the Question

First, identify the key descriptors in the question: 'loud', 'drum-like', and 'high pitch'. Also, note the assessment technique: 'percussion'.
Recall the five basic percussion notes: flatness, dullness, resonance, hyperresonance, and tympany.
Systematically compare the characteristics of each note with the descriptors in the question.
Eliminate 'Crackles' immediately, as it is an auscultatory sound, not a percussion note.
Differentiate between the remaining options. 'Resonance' is the normal lung sound (low-pitched). 'Hyperresonance' is a booming, low-pitched sound. 'Tympany' is a high-pitched, drum-like sound.
Conclude that 'Tympany' is the only term that matches all the descriptors provided in the question.

Concept Tested & Keywords

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E6 Nursing Fundamentals Taylor p. 716-718

Practise the full DSSSB -28 August 2019 (Shift-2)

Attempt every question from this paper in a timed mock, then review the full solution for each one.