Safety Systems & Standards Flashcards
7 cards from real ABA practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 7 Safety Systems & Standards flashcards as text
The EPA's Noise Control Act of 1972 requires hearing protection devices to be labeled with which rating?
Answer: Noise Reduction Rating (NRR)
The EPA mandates the NRR labeling system on all HPDs sold in the US, providing consumers with a standardized measure of attenuation.
When performing a biological calibration check of an audiometer, the clinician listens for pure tones at each frequency. The primary purpose is to detect:
Answer: Gross equipment malfunctions such as static, tone interruptions, or cross-talk
A daily listening check is a subjective biological calibration to identify obvious malfunctions like static, tone breaks, or channel cross-talk before patient testing.
Which ANSI standard specifically addresses the specification and performance requirements for pure-tone audiometers?
Answer: ANSI S3.6
ANSI S3.6 (Specification for Audiometers) defines the electroacoustic performance requirements for diagnostic and screening audiometers.
Electrical safety in audiology requires that audiometric equipment should be connected to what type of outlet to minimize risk of electrical shock to patients?
Answer: Properly grounded 3-prong outlet with GFCI in wet locations
Audiometric equipment must be plugged into properly grounded 3-prong outlets, with GFCI protection required in areas where water may be present to prevent electrical hazards.
According to infection control guidelines, which component of an audiometer requires cleaning between patients to prevent disease transmission?
Answer: Earphone cushions, insert earphone tips, and bone vibrator surfaces
All patient-contact surfaces including earphone cushions, insert foam tips (single-use or disinfected), and bone vibrators must be cleaned/replaced between patients.
In the context of audiological safety, acoustic trauma refers to hearing loss caused by:
Answer: A single brief exposure to an extremely high-intensity sound
Acoustic trauma results from a single high-intensity sound event (e.g., explosion or gunshot) causing immediate mechanical damage to cochlear structures.
When counseling a patient about recreational noise exposure, which activity typically produces sound levels that can cause hearing damage with exposures as brief as 2 minutes?
Answer: Rock concert at 110 dB
Rock concerts typically reach 110 dBA, at which level NIOSH's 3 dB exchange rate limits safe exposure to approximately 2 minutes.