Otoscope Use
Otoscope Use - Related Videos
06:58
Endotracheal Intubation in Mice via Direct Laryngoscopy Using an Otoscope
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Cited by 12 •
2014
We have developed a simple, reliable, and relatively inexpensive method for endotracheal intubation in mice via direct laryngoscopy using an otoscope with a 2.0 mm speculum. This technique is atraumatic and can be used for repeated measurements in chronic experiments. We find it superior to tracheostomy or previously reported nonsurgical techniques.
06:13
Video-Assisted Orotracheal Intubation in Rats Using a Low-Cost Smartphone-Connected Otoscope
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2026
This protocol describes a simple, low-cost, video-assisted method for orotracheal intubation, enabling rapid and visually guided intubation in adult rats under isoflurane anesthesia.
13:50
Improved Methodology for Liquid Delivery to the Mouse Lung: Intubation using a Consumer Otoscope
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2025
This protocol presents how optimally positioning a mouse and inserting a camera-based otoscope transorally enables visualization of the glottis, rapid intubation with minimal tissue trauma, and consistent liquid delivery to the lungs.
00:06
Simple Surgical Induction of Conductive Hearing Loss with Verification Using Otoscope Visualization and Behavioral Clap Startle Response in Rat
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Cited by 2 •
2019
Here, we present a protocol to establish a replicable conductive hearing loss induction via surgical tympanic membrane puncture and verification by otoscope visualization and behavioral assessment by clap startle.
09:10
Ear Exam
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2023
Source: Richard Glickman-Simon, MD, Assistant Professor, Department of Public Health and Community Medicine, Tufts University School of Medicine, MA This video describes the examination of the ear, beginning with a review of its surface and interior anatomy (Figure 1). The cartilaginous auricle consists of the helix, antihelix, earlobe, and tragus. The mastoid process is positioned just behind the earlobe. The slightly curving auditory canal ends at the tympanic membrane, which transmits sound...
FAQs
The speculum directs the instrument’s light into the external auditory canal, creating a clear route for viewing the tympanic membrane. Because the examiner gently positions the otoscope within the canal, the instrument can reveal structures that are not visible from outside the ear. Proper alignment therefore supports a more informative visual assessment.
Pneumatic examination adds an assessment of tympanic membrane mobility to the visual inspection. When performed, the clinician can consider movement alongside the membrane’s color and position. This additional observation may provide useful information when evaluating findings associated with middle-ear inflammation, making the examination more informative than visual assessment alone.
Clinicians assess the tympanic membrane for changes in color, position, and, when pneumatic examination is performed, mobility. These observations can contribute to identifying findings associated with middle-ear inflammation. Interpreting them together with the patient’s symptoms helps the clinician investigate the cause of ear-related complaints and plan appropriate clinical management.
The examiner first uses the illuminated instrument and selects the viewing pathway provided by its speculum. The otoscope is then gently positioned in the external auditory canal, and light is directed toward the tympanic membrane. If indicated, pneumatic examination can add an assessment of membrane mobility to the visual findings.
Otoscope use is particularly relevant when a patient reports ear pain, hearing changes, or discharge. Examination may reveal findings associated with cerumen impaction, otitis externa, or middle-ear inflammation. By linking the observed ear structures with the presenting symptoms, clinicians can investigate the complaint and determine whether treatment decisions are needed.
The examination supplies observations about the ear canal and tympanic membrane that support clinical assessment. Findings such as cerumen impaction, changes associated with otitis externa, or signs linked to middle-ear inflammation can help guide treatment decisions. When pneumatic examination is included, tympanic membrane mobility provides an additional result for clinical interpretation.