Prepare for the ACVREP Orientation and Mobility (OandM) Exam. Use our study aids and multiple-choice questions, each with detailed explanations. Boost your confidence and succeed!

Multiple Choice

What decibel range defines profound hearing loss?

Understanding how severity is assigned by decibel levels helps you interpret audiograms and plan communication strategies. Profound hearing loss is defined as thresholds of 91 dB HL or greater. This places it above the severe range (71–90 dB HL) and the moderately severe range (56–70 dB HL). The defining boundary is 91 dB HL because it marks the point at which speech is typically inaudible even with strong amplification for many individuals. Saying 100+ dB would still be within the profound category, but it’s not the boundary used to define the category.

Understanding how severity is assigned by decibel levels helps you interpret audiograms and plan communication strategies. Profound hearing loss is defined as thresholds of 91 dB HL or greater. This places it above the severe range (71–90 dB HL) and the moderately severe range (56–70 dB HL). The defining boundary is 91 dB HL because it marks the point at which speech is typically inaudible even with strong amplification for many individuals. Saying 100+ dB would still be within the profound category, but it’s not the boundary used to define the category.