Hearing Aid Dispenser License Exam Questions and Answers

Hearing Aid Dispenser License Exam Questions and Answers Professionalism ___________ is practicing with impeccable performance, accountability, and work ethic. Ethical conduct ____________ is rooted in a code of acceptable social behavior as determined by society's conventions regarding polite behavior and doing the right thing for the right reasons SOAP notes stands for S; subjective; O: objective; A: assessment P: plan HEAR notes stands for H: history; E: evaluation; A: assessment; R: recommendation HIPPA stands for Health Insurance Portability and Accountability Act ACA stands for American Conference of Audioprosthology Ethics _________ reflects established and/or expected norms that guide human conduct or behavior and is perceived as right vs. wrong 4 types of ethics 1. personal ethics, 2. professional ethics, 3. organizational ethics, & 4. business ethics Personal Ethics _________ is a type of ethics that is ingrained as a result of one's level of education, life experiences, family, parental, and social upbringing, and societal and/or familial expectations, among others. Professional Ethics a type of ethics: the rules and principles that govern the behavior of the members of the profession. Organization Ethics _________ is a type of ethics that involves the management of relationships with clients and the public under a set of principles of conduct Business Ethics _____________ is a type of ethics that provides a framework or set of standards of behavior intended to prevent unfair competition or personal gain resulting from business decisions or transactions US laws a HAD knowledge of: FDA regulations (govern the manufacture and sale of HAs); HIPPA; ARRA (American Reinvestment and Recovery Act; HITECH (health information technology for economic and clinical health) PHI stand for: Personal Health Information Ethical always equals legal, but... ......legal does not always equal ethical. Unethical does not always equal illegal, but.... .....illegal always equals unethical. Acoustics __________ is a branch of physics specializing in sound. Sound __________ is a form of energy which originates when a force creates a vibration in the molecules of a solid, liquid, or gas. Sound energy travels by... this type of energy travels by waves that expand in spheres in all directions. Compression _________ is when some of the air molecules are pushed together when a sound wave travels. It is more dense than at rest. This is known as... Rarefaction ___________ is when a sound wave travels, some molecules are less dense and spread farther apart than normal Pure Tone __________ is produced by simple repeated alternations of compression and rarefaction. Sine Wave _________ is a graphic representation of a pure tone. When representing a sine wave on a graph the vertical axis shows _______1.________ and the horizontal shows _______2._____________. 1. amplitude of the wave (power increases amplitude) 2. indicated the time (period) Frequency _________ is the number of complete compression/rarefaction cycles per second. The unit for frequency is.. ..... Hertz (Hz) or cycles per second. Period _____________ is the time required for one complete cycle of compression and rarefaction. Amplitude _________ graphically describes the intensity of the energy of a vibrating body. It is usually expressed in decibels (dB) Intensity is usually expressed in.. _____________ is usually expressed in decibels (dB) Wavelength _________ is the distance between one wave crest and trough to the next. the wavelength of a ___1___ frequency sound is shorter than the wavelength of a _____2____ frequency sound. 1. high 2. low Additional: a high frequency pure tone with a shorter wavelength will have more cycles tin the same period than a low frequency tone with a long wavelength. Phase ________ is a term used to describe the position in the cycle of one sound wave relative to another. At sea level, sound waves travel in the air at about __________ feet per second or more than 760 miles per hour. they travel at 1100 feet per second. Sound travels faster as the density of the medium increases regardless of the frequency. Therefore, sound travels about 4x faster through __1___, and 15x faster through ___2____, than through ___3____. 1. water 2. steel 3. air Resonance ________ is the natural tendency for an object to vibrate with greater amplitude at one frequency that at others when a driving force is applied. Resonant frequency _______________ is the frequency with the greatest amplitude Reflection _____________ is a characteristic of environment. flat hard surfaces reflect sound to a greater degree and uneven or soft surfaces. Reverberations _______________ are sounds that are reflected from the walls, floor or ceiling of a room. They man persist after the sound source ceases to vibrate. Echo __________ is a sound reflection heard separately from the original sound. Absorption ______________ is the opposite of reflection. Drapes, carpet and upholstered furniture absorb sound waves and reduce reflections and echoes. Complex wave _________ is the acoustical combination of several different pure tones presented at the same time. Sound Pressure. __________ is the deviation from the ambient atmospheric pressure caused by a sound wave. Pressure is generated whenever a force is applied to a surface area like the TM. The commonly used units for sound pressure measurements are.... .......... are dynes per square centimeter (dynes/cm^2) or micro Pascals. The weakest sound that an average normal ear can hear at an effective sound pressure of about................. ......... 2 ten-thousandths of a dyne (.0002 dynes/cm^2) or 20 micro Pascals. The strongest sound that an average normal ear can tolerate at an effective sound pressure of about................. ................. 1000 dyne s/cm^2, just below the threshold of pain. Boyles Law ____________ states that as the physical volume of a gas decreases, the pressure of the gas increases. Boyle's Law applying to HADs.... ______________ applies to HADs in terms of the depth of the fitting in the ear canal. as the tips of the instrument or earmold goes deeper into the canal, the physical space or volume between the tip of the hearing instrument and the TM decreases, resulting in a higher sound pressure level produced by the fitting. Decibels: the logarithmic scale translates to what range of dynes? .0002 to 1000 dynes/cm^2 translates to the range of 0-140 decibels. Decibels cannot be added or subtracted. When the sound pressure level (SPL) is doubled. the dB value is not. the number of decibels is increased by ____ as a result of the exponential summation. is increased by 6dB. SPL stands for.... .......... Sound pressure level Sound Pressure Level (dB SPL) references... ..... references 0.0002 dyne/cm^2 or 20 micro Pascals (uPa) Hearing Level (dB HL) references...... ........ references audiometric 0 Sensation Level (dB SL) references.......... .......... references another audiometric value for an individual. Psychoacoustics _____________ is the perception of sound. It is the marriage of the ear and the brain. Pitch ___________ the psychological response to frequency Loudness ________ is the psychological response to intensity. Intensity, measured in dB SPL or HL, is the physical measurement that expresses signal amplitude. The normal human ear can respond to a range of frequencies from about ___Hz to _____ Hz. 20Hz to 20,000 Hz. Infection Control ________ is a process that involves the rigorous management of the clinical environment for the specific purpose of minimizing the potential spread of disease. Cleaning _________ is the removal of gross contamination without necessarily involving the process of killing germs. Critical instruments ___________ are reusable instruments or objects that are either: 1) introduced to the blood stream; 2)non-invasive instruments that come in contact with mucous membranes or bodily substances; or 3) non-invasive instruments that can nick skin surfaces disinfecting _________ is a process whereby germs are killed PPE stands for: stands for Personal Protective Equipment Sterilization ________ is the process whereby 100% of germs (including endospores) are killed. Except for the outer ear, the structures of the ear are housed within what bone? Located within the Temporal bone. Auris Dectra ________ _________ is the right ear. Auris Sinistra _______ _________ is the left ear Aures Unitas