NBCSN Nationally Certified School Nurse Practice Exam

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What does an audiometer measure?

  1. Blood pressure and heart rate

  2. Visual acuity and depth perception

  3. Decibels and Hertz

  4. Respiratory rate and oxygen levels

The correct answer is: Decibels and Hertz

An audiometer is a specialized instrument used in hearing assessments to measure an individual's hearing sensitivity at various frequencies. It quantifies hearing capabilities in terms of decibels (dB), which represents sound intensity, and Hertz (Hz), which indicates the frequency of the sound being tested. By presenting various tones at different volumes and pitches, the audiometer helps determine the thresholds of hearing for the individual being evaluated, allowing for the identification of hearing loss or other auditory issues. Understanding these measurements is essential for accurately diagnosing hearing problems and deciding on appropriate interventions or therapies. The other options do not pertain to what an audiometer measures: blood pressure and heart rate are related to cardiovascular health, visual acuity and depth perception pertain to eyesight, and respiratory rate and oxygen levels are key metrics in evaluating respiratory function.