auditory brainstem response


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response

 [re-spons´]
any action or change of condition evoked by a stimulus.
acute phase response a group of physiologic processes occurring soon after the onset of infection, trauma, inflammatory processes, and some malignant conditions. The most prominent change is a dramatic increase of acute phase proteins in the serum, especially C-reactive protein. Also seen are fever, increased vascular permeability, and a variety of metabolic and pathologic changes.
anamnestic response the rapid reappearance of antibody in the blood following introduction of an antigen to which the subject had previously developed a primary immune response.
auditory brainstem response ABR; a special hearing test that tracks the nerve signals arising in the inner ear as they travel along the auditory nerve to the brain region responsible for hearing. A small speaker placed near the ear makes a clicking sound, and special electrodes record the nerve signal as it travels. The test can determine where along the nerve there is a lesion responsible for sensorineural hearing loss. It is often used for individuals with such loss in just one ear; this is often caused by a benign tumor along the auditory nerve, but if the ABR reading is normal in a given region, the chances of there being a tumor there are small. This test can also be used on infants since it requires no conscious response from the person being tested.
autoimmune response the immune response in which antibodies or immune lymphoid cells are produced against the body's own tissues. See also autoimmune disease.
conditioned response see conditioned response.
dysfunctional ventilatory weaning response a nursing diagnosis adopted by the North American Nursing Diagnosis Association, defined as inability of a patient to adjust to lowered levels of mechanical ventilator support, which interrupts and prolongs the process of weaning. See also mechanical ventilatory weaning.
galvanic skin response the alteration in the electrical resistance of the skin associated with sympathetic nerve discharge.
immune response see immune response.
inflammatory response the various changes that tissue undergoes when it becomes inflamed; see inflammation.
post-trauma response former name for the nursing diagnosis post-trauma syndrome.
reticulocyte response increase in the formation of reticulocytes in response to a bone marrow stimulus.
triple response (of Lewis) a physiologic reaction of the skin to stroking with a blunt instrument: first a red line develops at the site of stroking, owing to the release of histamine or a histamine-like substance, then a flare develops around the red line, and lastly a wheal is formed as a result of local edema.
unconditioned response an unlearned response, i.e., one that occurs naturally, in contrast to a conditioned response.

au·di·to·ry brain·stem re·sponse (ABR),

an electrophysiologic measure of auditory function using computer-averaged responses produced by the auditory nerve and the central auditory pathways principally in the brainstem to repetitive acoustic stimuli. ABR is also used to locate brainstem lesions and determine whether a hearing impairment is sensory or neural.

auditory brainstem response

n.
An electronic measure of auditory function using responses produced by the auditory nerve and the brainstem.

auditory brainstem response (ABR)

an electrophysiological test used to measure hearing sensitivity and evaluate the integrity of ear structures from the auditory nerve through the brainstem. It is also used to screen hearing of newborns.

au·di·to·ry brain·stem re·sponse

(ABR) (aw'di-tōr-ē brān'stem rĕ-spons')
A response produced by the auditory nerve and the brainstem to repetitive acoustic stimuli.
Synonym(s): brainstem evoked response.

au·di·to·ry brain·stem re·sponse

(ABR) (aw'di-tōr-ē brān'stem rĕ-spons')
Electrophysiologic measure of auditory function using computer-averaged responses produced by the auditory nerve and the central auditory pathways principally in the brainstem to repetitive acoustic stimuli.
Synonym(s): brainstem evoked response.
References in periodicals archive ?
In addition, they received pure tone audiometry, acoustic immittance test, DP otoacoustic emission test and auditory brainstem response test.
Prediction of frequency-specific hearing threshold using chirp auditory brainstem response in infants with hearing losses.
Mean latencies and amplitudes of peaks I, III, and V in Auditory Brainstem Response (ABR) for ipsilateral (Ipsi) and contralateral (Contra) stimulation for blast-exposed and control subjects.
Identification of neonatal hearing impairment: evaluation of transient evoked otoacoustic emission, distortion product otoacoustic emission, and auditory brainstem response test performance.
The single difference between the two groups was found with regard to pediatric auditory brainstem response testing.
The influence of aging on auditory brainstem response and electrocochleography in the elderly.
02 Contract Notice: NHSGG&C Paediatric Audiology Department has a requirement to replace 26 each Automated Auditory Brainstem Response Screeners & the associated Consumables to support a birth population of 16,500 per annum.
Newborn Hearing Screening uses electroacoustic and electrophysiological measures, such as transient evoked otoacoustic emissions (TOAE) and the Automatic Auditory Brainstem Response (ABR-A), since this population is unable to answer adequately to behavioral tests due to age [7].
Bedside auditory brainstem response testing in the recovery room revealed the absence of waves bilaterally.
They also cover current clinical protocols, equipment setup, patient-related factors, common clinical interpretations, and case studies of electrocochleography, automated hearing screening, threshold estimation using auditory brainstem response, brain-related injuries, surgical applications, and other areas; and patient preparation and data collection, report writing, stimulation calibration and generation, and evidence-based practice.