Unit 2 Flashcards
What is an otoscopy.
an examination of the structures of the ear, particularly the external auditory canal, tympanic membrane, and middle ear. Clinicians use the process to evaluate specific ear complaints.
When might an otoscopy be used
during regular check-ups and also to investigate ear symptoms.
What diseases can an otoscope help diagnose
- Acute otitis media
- Otitis media with effusion
- Chronic suppurative otitis media
What is a pure-tone audiometry test
A test used to identify hearing threshold levels of an individual, enabling determination of the degree and type and configuration of a hearing loss.
When might a pure tone audiometry test be used
to determine how well someone can hear. May be done as part of a routine check-up or in response to a noticeable loss of hearing.
What diseases can a pure tone audiometry test help diagnose.
sensorineural hearing loss (damage to the nerve or cochlea) or conductive hearing loss (damage to the eardrum or the tiny ossicular bones).
What is a tympanometry
evaluate the condition of the middle ear eardrum (tympanic membrane) and the conduction bones by creating variations of air pressure in the ear canal. Tympanometry is an objective test of middle-ear function.
When may an tympanometry exam be used
Often used to assess the function of the middle ear, tympanometry is one test that can determine whether your hearing loss can be helped by hearing aids or whether a medical treatment is available to treat your loss instead.
What diseases can tympanometry help diagnose
- fluid in the middle ear
- perforation of the eardrum (tympanic membrane)
- scarring of the eardrum, which usually results from - - - frequent ear infections
- middle ear pressure beyond the normal range
- growths in the middle ear
- earwax blocking the eardrum
What is a tuning fork test
is a screening test for hearing performed with a tuning fork. It can detect unilateral (one-sided) conductive hearing loss (middle ear hearing loss) and unilateral sensorineural hearing loss (inner ear hearing loss).
When may a tuning fork test be used
may be used as part of a check up, however can be used to look into specific ear symptoms.
What disease may a tuning fork test diagnose
can detect unilateral conductive and sensorineural hearing loss. The outer and middle ear mediate conductive hearing. The inner ear mediates sensorineural hearing
What is a nerve conduction studies exam
measures how fast an electrical impulse moves through your nerve. Can identify nerve damage. During the test, your nerve is stimulated, usually with electrode patches attached to your skin.
When might a nerve conduction studies test be used
Done to find and evaluate damage to all the nerves that lead away from the brain and spinal cord to the smaller nerves that branch out from them.
What disease may a nerve conduction studies test diagnose
Help diagnose nerve disorders, such as carpal tunnel syndrome or Guillain-Barré syndrome.
What is an electromyography
evaluating and recording the electrical activity produced by skeletal muscles. EMG is performed using an instrument called an electromyograph to produce a record called an electromyogram.
When might an electromyography be used
is used to help identify, evaluate and find nerve and muscle problems. During the test, your healthcare provider will put a small needle (also called electrodes) through your skin into a muscle.
What disease can an electromyography test diagnose
- Amyotrophic lateral sclerosis (ALS)
- Carpal tunnel syndrome.
- Cervical spondylosis.
- Guillain-Barre syndrome.
- Lambert-Eaton syndrome.
- Muscular dystrophy.
- Myasthenia gravis.
What is an Electroencephalography test
A test that records electrical activity of the brain. It is typically non-invasive, with the electrodes placed along the scalp, although invasive electrodes are sometimes used, as in electrocorticography, sometimes called intracranial EEG.
When might an electroencephalography test be used
done to diagnose and monitor seizure disorders. EEGs also can identify causes of other problems, such as sleep disorders and changes in behavior. They’re sometimes used to evaluate brain activity after a severe head injury or before a heart transplant or liver transplant.
What diseases can a electroencephalography help diagnose
- Sleep disorders (such as narcolepsy)
- Head injuries.
- Brain infection.
- Brain haemorrhage.
- Alzheimer’s disease.
- Degeneration of brain tissue.
What is an evoked potentials test
Is a electrical potential in a specific pattern recorded from a specific part of the nervous system, especially the brain, of a human or other animals following presentation of a stimulus such as a light flash or a pure tone.
When might an evoked potentials test be used
test can diagnose hearing ability and can point to possible brainstem tumours or multiple sclerosis. A healthcare professional places electrodes on your scalp and earlobes and delivers auditory stimuli, such as clicking noises and tones, to one ear
What diseases can an evoked potentials test diagnose.
Doctors use the test to help diagnose multiple sclerosis (MS) and other conditions that can cause a person’s reactions to slow. The test can detect unusual responses to stimulation.
