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141 Cards in this Set
- Front
- Back
Length of external auditory canal
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2.5 cm in adults
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Secreted by sebaceous glands in distal 1/3 of canal
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Cerumen
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Most of tympanic membrane is __ while superior portion is __
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Tense (pars tensa); flaccid (pars flaccid)
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Bone that can be seen through tympanic membrane
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Malleus
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Organ of corti (part of cochlea) transmits impulses to:
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8th cranial n
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Path of hearing
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Sound waves enter external auditory canal → tympanic membrane → vibrates attached malleus → vibrates incus and stapes → oval window of inner ear (where stapes attached) → endolymph fluid of chochlea → round window → hair cells of Organ of Corti → 8th cranial n → temporal lobe
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2 bones that form nasal bridge
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Frontal and maxillary bones
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2 bones that form roof of nose
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Frontal and sphenoid bones
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Convergence of small fragile arteries and veins superficially on anterior superior portion of the septum
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Kiesselbach plexus
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Lie on the posterior wall of the nasopharynx
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Adenoids
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Drainages of nasolacrimal duct, paranasal sinuses and posterior ethmoid sinus
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Inferior, medial and superior meatus (respectively)
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Development of sinuses by age
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Maxillary & ethmoid (birth), sphenoid (tiny cavity at birth but develops at puberty), then frontal sinus (develops 7-8 yrs old)
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Tongue is anchored to what 2 structures
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Base to back of oral cavity; floor of mouth by frenulum
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Outlets of the parotid gland; open on buccal mucosa opposite the 2nd molar on each side of upper jaw
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Stensen ducts of parotid gland
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Open on each side of the frenulum under the tongue
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Wharton ducts of submandibular glands
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Usual number of teeth in adults
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32 (exception, Asians have no wisdom teeth so 28 teeth, followed by whites and native Americans; rare in blacks)
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Inferior to nasopharnx, separated fr/mouth by anterior and posterior tonsillar pillars
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Oropharynx
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Fetal development of inner ear occurs:
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1st trimester
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How does infant ears differ fr/adults
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Infant external auditory canal is shorter and has upward curve; allows easier reflux of nasopharyngeal secretions
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Age when deciduous teeth calcify
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Fetal 3rd month
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When do 20 deciduous teeth appear
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6-24 mo
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Eruption time frame of permanent teeth
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6 yrs – 14-15 yrs (white children 3rd molars ~ 18 yrs old)
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Elevated levels of estrogen in pregnancy causes:
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Increased vacularity of UR tract; stuffy nose, ↓ smell, epistaxis (bleeding fr/nose); hoarseness, vocal changes or persistent cough
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Hearing begins to deteriorate at what age? Why?
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After age 50; degeneration of hair cells of organ of Corti
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Sensorineural hearing loss occurs first with:
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High frequency then progresses to lower frequency
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Atrophy of stria vascularis that secrete endolymph can cause
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↓ sensitation leading to hearing loss
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Onset of instant hearing loss may indicate:
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Vascular disruption
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Aminoglycosides, salicylates, furosemide, streptomycin, quinine, ethacrynic acid and cisplatin
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Ototoxic meds
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Genetic disease assctd w/hearing loss
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Meniere disease
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Low birth weight (< 1500 g), ↑ bilirubin level, maternal infx, syphilis during prenatal period, cleft palate, craniofacial abnormalities, head trauma, hypoxic episode, infections
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Risk factors for infant/child hearing loss
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Risk factors for oral cancer
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> 40 yrs, male, black, alcohol abuse, ill-fitting dentures/prior oral lesions, tobacco use, occupation (textile or leather manufacturing), systemic disease (anemia, HIV, lichen planus, prior malignancy)
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Dry mouth
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Xerostomia
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Anticholinergics, diuretics, antiHT, antihistamines, antispasmodics, antidepressants, tranquilizers
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Meds that ↓ salivation
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Thickening along the upper ridge of the helix; expected variant
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Darwin tubercle
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Blueness of auricles indicate __, while pallor or excessive redness indicates __
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Vasomotor instability; frostbite (extreme pallor)
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Can be result of blunt trauma or necrosis of underlying cartilage of ear
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Cauliflower ear
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Small, whitish uric acid crystals along peripheral margins of the auricles can indicate:
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Gout
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Elevations in the skin w/a punctum indicating a blockage
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Sebaceous cyst
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An auricle with a low set or unusual angle may indicate:
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Chromosomal or renal disorders
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Depth to insert the speculum in the ear
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1-1.5 cm (1/2 inch)
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Which landmarks should be visible on the tympanic membrane
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Umbo, handle of malleus, and light reflex
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A bulging tympanic membrane is more __ while a retracted membrane is more ___
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Conical (loss of bony landmarks); concave (accentuated landmarks, distorted light reflex)
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Use to assess the mobility of the tympanic membrane
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Pneumatic otoscopy
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Maple syrup odor from earwax can indicate
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Maple syrup urine disease
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Mousey odor from earwax can indicate
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Proteus infx
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Putrid odor from earwax can indicate
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Pseudomonas infx
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Distance Dr stands for whisper test
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1-2 ft (atleast 50% correct response is expected)
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Tests for lateralization of sound
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Weber test (tuning fork on midline of skull)
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In the Rinne test, air conduction should be __ than bone conduction
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2x
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When sound transmission is impaired through external or middle ear
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Conductive hearing loss
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Defect in middle ear that leads to distortion of sound and misinterpretation of speech
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Sensorineural hearing loss
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If bone conduction is heard longer than air conduction in affected ear, then Rinne is ___ and pt has __ hearing loss
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Negative; conductive
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If air conduction is longer than bone, but less than 2x as long, then pt has __ hearing loss
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Sensorineural
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In the Weber test, __ hearing loss results in lateralization of deaf ear, and __ hearing loss results in lateralization to the better ear
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Conductive; sensorineural
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In Weber test, sound should be best heard in the __ ear
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Occluded??? Pg 330
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Bilateral water discharge from nose, with sneezing and nasal congestion indicates
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Allergy
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Unilateral watery discharge after head trauma can indicate
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Fracture of cribiform plate → cerebrospinal fluid
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Profuse bleeding fr/the nose
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Epistaxis
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Mucoid discharge is seen in ___, while bilateral purulent discharge can be seen in ___
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Rhinitis; upper respiratory infx
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Unilateral, purulent, thick, greenish and very malodorous discharge may indicate
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Foreign body in nose
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Which turbinates are visible in nasal exam
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Middle and inferior
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Turbinates that appear bluish gray or pale pink w/swollen, boggy consistency can indicate:
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Allergies
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Rounded, elongated mass projecting in to the nasal cavity fr/boggy mucosa may be a:
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Polyp
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Deep fissures at the corners of the mouth, aka ___, may indicate:
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Cheilosis; riboflavin deficiency or overclosure of mouth
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Pale lips can indicate __, while circumoral pallor can indicate __
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Anemia; scarlet fever
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Give indications for bluish purplish lips
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Respiratory/cardiovascular problem
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Give indications for cherry red lips
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Acidosis and carbon monoxide poisoning
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Give indications for irregular bluish gray macules on lips and buccal mucosa
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Peutz-Jeghers syndrome
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Size of teeth by race, from largest to smallest
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Orientals/Native Americans > blacks > whites
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Grayish-white benign lesion of the buccal mucosa that occurs in 70-90% of blacks and 40% of whites
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Leukoedema
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Type of malocclusion when molars have customary relationship, but line of occlusion incorrect because of rotated teeth or other causes
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Class I
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Type of malocclusion when lower molars are distally positioned in relation to upper molars; line of occlusion MAY be correct
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Class II
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Type of malocclusion when lower molars are medially positioned in relation to upper molars, line of occlusion MAY be correct
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Class III
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Ectopic sebaceous glands on buccal mucosa and lips that are numerous and small, yellow-white, raised; an expected variant
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Fordyce spots
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Deeply pigmented buccal mucosa can indicate
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Endocrine pathology
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Red spot on the buccal mucosa at the opening of the Stensen duct is asstd w/:
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Parotitis (mumps)
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Appear on the buccal mucosa as white, round, or oval uncreative lesions with a red halo
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Apthous ulcers
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Blue-black line about 1 mm from the gum margin may indicate
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Chronic lead or bismuth poisoning
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A protruded tongue deviates to the __ side of lesion and tests for which cranial nerve
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Same side; hypoglossal nerve (CN 12)
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A smooth red tongue w/ a slick appearance can indicate:
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Niacin or Vit B12 deficiency
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A hairy tongue w/yellow-brown to black elongated papillae on the dorsum:
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Can follow antibiotic therapy
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High risk site for oral cancer
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Vermilion border of the lips
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Manifestations of oral hairy leukoplakia, angular cheilitis candidiasis, herpes simplex, herpes zoster, human papillomavirus, apthous ulcers, periodontal dis, and Kaposi sarcoma are indicated in what disease?
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HIV infx
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An ulcer, nodule, or thickened white patch on the lateral or ventral surface of the tongue can suggest
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Malignancy
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A bony protuberance on the lingual surface of the mandible that is more common in Orientals and Native Americans
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Mandibular torus
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Bony protuberance at the midline of the hard palate
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Torus palatines
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During aaah, failure of soft palate to rise bilaterally may result from paralysis of:
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Vagus nerve
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Observing uvula during aaah, it deviates to the __ side, and test for which nerves?
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Unaffected side; glossopharyngeal (CN 9) and vagus (CN 10)
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How can u help a person w/ gag reflex using tongue blade?
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Wet w/warm water
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A red bulge adjacent to the tonsil and extending beyond the midline can indicate
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Peritonsillar abscess
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A grayish adherent membrane on the pharynx is asstd w/:
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Diphtheria
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A yellowish mucoid film in the pharynx is asstd w/:
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Postnasal drip
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The gag reflex tests (should be a bilateral response):
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Glossopharyngeal and vagus nerves (CN 9 and 10)
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Pt lies supine with head hyperextended 45 degrees over exam table while dr observes for nystagmus, unexpected finding with duraction and vertical/horizontal movement of eyes noted
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Nylen-Barany test
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When using transillumination of the sinuses in a dark room, what are unexpected findings?
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Asymmetry of transillumination; opaque or dull response
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To determine the height of auricles, you make an imaginary line between what 2 landmarks
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Outer canthus of eye and prominent portion of occiput (auricle should be no more than 10 d from vertical)
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Premature infant auricles:
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Have slower recoil
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Auricles poorly shaped or below the imaginary line are asstd w/:
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Renal or congenital disorders
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A small preauricular skin tag or pit just anterior to the tragus of an infant can indicate:
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A remnant of the first branchial cleft
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Expected age an infant responds to his/her name
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6-10 mo
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Age that an infant turns head toward source of sound
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4-6 mo
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Age that infant has a startle reflex due to loud noise
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Birth – 3 mo
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Age that infant recognizes and localizes source of sound; imitates simple words and sounds
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10-12 mo
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With breathing difficulty of an infant when expiring through noncompressed naris, what should be done?
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Pass small catheter through each naris to the choana to determine obstruction (from choanal atresia or septal deviation from delivery trauma)
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Secretions that accumulate in the newborns mouth requiring frequent sunctioning may indicate:
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Esophageal atresia
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Adherent white patches of the tongue or buccal mucosa (in an infant or adult) can indicate:
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Candidiasis (thrush)
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Drooling over 12 months of age can indicate:
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Neurological disorder
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Macroglossia of the infant is asstd w/:
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Congenital anomalies or hypothyroidism
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A narrow, flat palate roof or high, arched palate (asstd w ___) can cause what problems
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Congenital anomalies; feeding or speech problems
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Small, whitish masses between the hard and soft palate of the newborn and are common; disappear within a few weeks after birth
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Epstein pearls
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Multiple brown areas or caries on the upper and lower incisors of children may indicate
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Baby bottle syndrome
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Children with black or gray color on teeth may indicate
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Oral iron therapy
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Mottled or pitted teeh on children usually result of:
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Tetracycline tx during tooth development or enamel dysplasia
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Chalky white lines or speckles on the cutting edges of permanent incisors of children may result from:
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Excessive fluoride intake
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White specks called ___with a red base on the buccal mucosa opposite the first and second molars that occur with fever, coryza (acute rhinitis) and cough can indicate:
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Koplik spots; rubeola
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Describe grading of enlarged tonsils
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1+ visible, 2+ halfway between tonsillar pillars and uvula, 3+ nearly touching uvula, 4+ touching each other
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If tonsils appear pushed backward or forward, possibly displacing the uvula, consider:
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Peritonsillar abscess
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Hearing deterioration w/advanced age (presbycusis) marked by greater difficulty in understanding speech rather than all sounds; bilateral
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Sensorineural hearing deterioration
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Three common findings in the mouths of older adults
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Fissured tongue, varicose veins on tongue, attrition of teeth
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Infection of auditory canal resulting from trauma or moist environment that favors bacterial or fungal growth
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Otitis external aka swimmer’s ear
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Collection of serous, mucoid, or purulent fluid (effusion) of the middle ear that results in conductive hearing loss
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Middle ear effusion
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Type of ear infx with itching in the ear canal that is intense when the pinna is moved, or with chewing
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Otitis externa
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Ear infx with fever, feeling of blockage, tugging at earlobe, anorexia, irritability, dizziness, vomiting and diarrhea; deep-seated earache
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Acute otitis media
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Ear infx with sticking or cracking sound on yawning or swallowing, no signs of acute infx and uncommon to have pain
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Middle ear effusion
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Ear infx that results in at first water, then purulent and thick discharge with pus, musty and foul-smelling
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Otitis externa
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Acute otitis media occurrence by race, from most to least
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Native Americans, Alaskan, Canadian > whites > blacks
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Ear infx that causes bulging of tympanic membrane
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Acute otitis media
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Most common ear infx of childhood with lower incidence in adults
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Acute otitis media
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White, shiny, greasy flecks of debris/epithelial growth seen on the posterior superior middle ear through the tympanic membrane or perforation; can cause progressive hearing loss, tinnitus, mild vertigo; can lead to intracranial complications by eroding the temporal bone
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Cholesteatoma
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Hereditary condition more common in women; ossification occurs within bony labyrinth or otic capsule fixating the stapes; progressive hearing loss w/onset late teens-30 yrs; sensorineural hearing loss
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Otosclerosis
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Disease that affects the vestibular labyrinth, leading to profound sensorineural hearing loss, mild vertigo, tinnitus, unilateral at first then involves other ear
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Meniere Disease
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Inflammation of the labyrinthine canal of the inner ear due to acute upper respiratory infx; severe vertigo, nystagmus and increase severity w/head movement; total sensorineural hearing loss on affected side
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Labyrithitis
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Maxillary toothache, purulent nasal secretions, dull/opaque transillumination, poor response to decongestants, and colored nasal discharge are strong predictors of: (4 or more)
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Sinusitis
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Children that suffer from upper respiratory symptoms, nasal discharge, low-grade fever, daytime cough, malodorous breath, cervical adenopathy and morning eye swelling with no headache may indicate:
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Sinusitis
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Scabs on nasal mucosa, ↓ perception of taste and smell, perforation of the nasal septum can indicate:
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Chronic cocaine insufflation (snorting—word of the day )
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Tonsillitis studded w/yellow follicles most commonly caused by:
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Streptococcus infection
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Tonsils that appear red, swollen, with tonsillar crypts filled with purulent exudates; which lymphs would be enlarged?
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Tonsillitis; anterior cervical
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Moderate/severe tonsillar swelling, moderate/sever cervical lymphadenopathy, scarlatiniform rash with no coryza (acute rhinitis) highly indicative of:
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Group A beta-hemolytic streptococcus
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Infx of tissue between tonsil and pharynx, complication of tonsillitis; can cause dysphagia, drooling, sore throat w/pain radiating to the ear, muffled voice and fever; tonsil may appear pushed forward/backward
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Peritonsillar abscess
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Congenital malformation of the face as a fissure of the upper lip or palate
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Cleft lip and/or palate
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Drymouth caused by ingestion of anticholinergic or antidepressants drugs that interfere w/production of saliva; rheumatoid arthritis, scleroderma, polymyositis, and Sjogren syndrome; heavy smokers or those who have had radiation to the head and neck
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Xerostomia
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