Clinical Examination in ENT

Clinical Examination in ENT

Clinical Examination in ENT

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Clinical Examination in ENT - Tools & Tricks

  • Head Mirror & Light: (Bull's lamp/LED) Non-dominant eye; focal length ~20-25 cm.
  • Aural Speculum: Largest comfortable; pull pinna up & back (adults), down & back (children).
  • Tuning Forks: (512 Hz for Rinne/Weber). 📌 Strike gently, place firmly.
  • Nasal Speculum: (Thudichum's) Blades open vertically.
  • Tongue Depressor: Depress anterior 2/3rds.
  • Laryngeal Mirrors: Warm to prevent fogging.
  • Jobson Horne Probe: Wax/foreign body.
  • Siegle's Speculum: TM mobility.

ENT Diagnostic Set

⭐ Standard tuning fork frequency for clinical hearing tests (Rinne, Weber) is 512 Hz as it provides the best balance between decay time and bone conduction perception.

Clinical Examination in ENT - Sound Sleuthing

  • Otoscopy: Inspect External Auditory Canal (EAC) & Tympanic Membrane (TM).
  • Tuning Fork Tests (TFTs): Standard 512 Hz fork.
    • Rinne Test: Compares Air Conduction (AC) & Bone Conduction (BC).
      • Normal/SNHL: AC > BC (Positive).
      • CHL: BC > AC (Negative).
    • Weber Test: Lateralization.
      • CHL: Towards diseased ear.
      • SNHL: Towards better ear.
    • Schwabach Test: Compares patient's BC to examiner's.
  • Audiometry:
    • Pure Tone Audiometry (PTA): Hearing thresholds.
    • Impedance Audiometry: Middle ear function (Tympanometry, Stapedial reflex).

⭐ A 512 Hz tuning fork is preferred for clinical hearing tests as it balances audibility and minimizes vibratory sensation.

Rinne and Weber Test Interpretation

Clinical Examination in ENT - Sniffing Out Signs

  • External Nose & Vestibule:
    • Inspect: Deformities, skin (rhinophyma); vestibule (furuncles, crusting).
  • Anterior Rhinoscopy (Thudichum's speculum):
    • Septum: DNS, spurs, perforations; Kiesselbach's plexus (bleeding).
    • Lateral Wall: Turbinates (size, color, hypertrophy); meatus (discharge, polyps).
  • Posterior Rhinoscopy (Mirror):
    • Visualize: Choanae, Eustachian tube (ET) openings, adenoids, Fossa of Rosenmüller.
  • Sinus Examination:
    • Palpate: Frontal, maxillary sinus tenderness.
    • Transilluminate: Maxillary/frontal sinuses (↓ glow if sinusitis).

Anterior rhinoscopy view of nasal cavity

⭐ The Fossa of Rosenmüller, a common site for nasopharyngeal carcinoma, is best visualized during posterior rhinoscopy.

Clinical Examination in ENT - Oral Odyssey

  • Inspection: Systematic approach.
    • Lips: Symmetry, color, lesions.
    • Buccal mucosa, gingiva, teeth (note caries, missing teeth).
    • Tongue: Dorsum, ventral surface, lateral borders. Assess mobility (CN XII), papillae.
    • Palate: Hard & soft; uvula (midline, movement on phonation).
    • Tonsils: Size (Brodsky 0-4), crypts, exudate, symmetry.
    • Oropharynx: Posterior wall, pillars.
  • Palpation: Bimanual for floor of mouth, tongue base, and any lesions. Note tenderness, induration, fixity.
  • Duct Openings: Stensen's (parotid - opposite upper 2nd molar), Wharton's (submandibular - floor of mouth).
  • Tools: Bright light source, tongue depressor(s). Oral cavity and oropharynx anatomy

⭐ Ludwig's angina: a rapidly progressive, potentially life-threatening cellulitis of the submandibular, sublingual, and submental spaces. Often odontogenic; airway compromise is a critical concern.

Word count: 93

Clinical Examination in ENT - Voice & Vital Nodes

  • Voice Assessment (GRBAS Scale):
    • Grade, Roughness, Breathiness, Asthenia, Strain.
    • Hoarseness: key symptom (e.g., laryngitis, palsy, nodules, malignancy).
    • Stridor: Inspiratory (laryngeal), Expiratory (tracheal), Biphasic (subglottic).
  • Neck Examination (Lymph Nodes):
    • Inspect: scars, sinuses, swellings, visible pulsations.
    • Palpate systematically: submental, submandibular, jugulodigastric, cervical (anterior/posterior chains), supraclavicular.
    • Note: 📌 Site, Size (cm), Shape, Surface, Skin changes, Consistency (e.g. matted), Tenderness, Mobility (fixed?).

⭐ Jugulodigastric node (Level II) is often called the "tonsillar node" as it's the primary drainage for the palatine tonsil. Anatomical levels of neck lymph nodes

High‑Yield Points - ⚡ Biggest Takeaways

  • Tuning fork tests (Rinne, Weber) are crucial to differentiate CHL vs. SNHL.
  • Otoscopy: Identify landmarks like malleus handle, umbo, and cone of light.
  • Anterior rhinoscopy for nasal cavity; posterior mirror exam for nasopharynx.
  • Indirect Laryngoscopy (IDL) for vocal cords; tonsil grading (Brodsky scale).
  • Systematic neck palpation of lymph node levels is vital for staging.
  • Assess key ENT cranial nerves (V, VII, VIII, IX, X, XI, XII) for deficits.
  • Cold caloric test (COWS) evaluates vestibular function (horizontal SCC).

Practice Questions: Clinical Examination in ENT

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Middle age diabetic with tooth extraction with ipsilateral swelling over middle one-third of sternocleidomastoid & displacement of tonsils towards contralateral -

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Flashcards: Clinical Examination in ENT

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_____ is an objective test used widely to assess middle ear function, particularly in children

TAP TO REVEAL ANSWER

_____ is an objective test used widely to assess middle ear function, particularly in children

Impedence audiometry

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