Activity 4: Conducting Laboratory Tests of Hearing

Helpfulness: 0
Set Details Share
created 1 year ago by Zajdab
show moreless
Page to share:
Embed this setcancel
code changes based on your size selection

Weber Test to Determine Conduction And Sensorineural Deafness

Strike a tuning fork and place the handle of the tuning fork medially on your partner's head. Is the tone equally loud in both ears, or is it louder in one ear?

  1. Explain the diagnosis if the sound is equally loud in both ears.
  2. Explain the diagnosis if the sound is heard in one ear only.
  3. Explain the diagnosis if the sound is is heard more strongly in one ear.

1.The subject has equal hearing or equal loss of hearing in both ears.

2. Sensorineural deafness is present. The subject hears the tone in the unaffected ear but not at all in the ear with sensorineural deafness.

3. Conduction deafness is present. The subject hears the sound more strongly in the ear in which there is a hearing loss because the bone of the skull is conducting the sound.


When does conduction deafness occur?

When something prevents sound waves from reaching the fluids of the internal ear.


What are 4 possible causes of conduction deafness?

1. Compacted earwax

2. Perforated eardrum

3. Inflammation of the middle ear (otis media)

4. Damage to the ossicles


Rinne Test for Comparing Bone-conduction and Air-conduction Hearing

  • Strike the tuning fork, and place its handle on your partner's mastoid process.
  • When your partner indicates that the sound is no longer audible, hold the still-vibrating prongs close to his/her external acoustic meatus.
  • If your partner hears the fork again (by air conduction), is hearing affected or not affected.

Hearing not affected.


Rinne Test for Comparing Bone-conduction and Air-conduction Hearing

  • Repeat the test, but this time test air-conduction hearing first.
  • Strike the tuning fork, and hold the still-vibrating prongs close to his/her external acoustic meatus.
  • After the sound is no longer heard by air conduction, hold the handle of the tuning fork on the mastoid process.
  • If the subject hears the tone again by bone conduction after hearing by air conduction is lost, what is the diagnosis?

There is some conduction deafness.

Related pages

define gastric juicebiology calvin cyclewhy are males more likely to be colorblind than femaleseasy pivot liftchase modification formsa wrinkle in time summary chapter 3iprofile nutritionlifespan quizthe hormone epinephrine causes opposite effectsglycolysis breakdownnerves of the foreheadeasy notecards anatomy and physiologyreplication bubblesfreshwater biome soil typecrematory retortwhat is the liquid portion of the cytoplasm calledtemperature in the temperate deciduous forestcrenation is likely to occur incorynebacterium xerosis morphologypharynx and esophagus anatomywhich of the following statements is true concerning catabolic pathwayshair in forensicsemt quizesarchaea cellslack of patellar reflexsupplies the diaphragmaction potential resting potentialharangue defcubital fossa anatomysurfactant helps to prevent the alveoli from collapsing bystirrup earsierra madre oriental factsanatomy and physiology of respirationesophagus enzymesosteon diagramstarch sentencepaba bacteriatissues damaged by myocardial infarction are replaced by connective tissuelymphatic system consists ofwhich pathways comprise the autonomic nervous systemprocesses takes place in the cytosol of a eukaryotic celldiagram of nutrient cyclewhich sequence of stages in mitosis is correctcervical plexus phrenic nervesponginhow to memorize the bones of the bodydka nursing diagnosissteroid and peptide hormones typically have in commonrhizopus nigricanmeiosis easy explanationprion animationmuscle antagonist listchromosomes in drosophilatropical grassland temperature rangethe chesapeake incident involved the flagrant use ofserus fluidhow many ribs are in the rib cageabdominal superficial reflexgas exchange between alveoli and bloodggtthatchet chapter 6 questionshow to spell spanish numbers 1-100what feature characterizes simple columnar epithelium of the digestive tractdo animal cells have cytoskeletonmuscular arterylytic cycle of a virusnursing care plan for low oxygen saturationhuman reflex physiology labwhat do arteries carrywhat is the main function of nervous tissuewhat is the function of the pulmonary circuitecology quiz questionsin asexual reproduction offspring are producedorigin and insertion of biceps