W/L Ch 31 H&N Quiz Flashcards

1
Q

After what dose of radiation does xerostomia typically first occur?

a. 1000 to 2000 cGy
b. 2000 to 3000 cGy
c. 3000 to 4000 cGy
d. 4000 to 5000 cGy

A

a. 1000 to 2000 cGy

Xerostomia occurs after 1000 to 2000 cGy and may be permanent after 4000 cGy.

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2
Q

After what dose of radiation may xerostomia become permanent?

a. 1000 to 2000 cGy
b. 2000 to 3000 cGy
c. 3000 to 4000 cGy
d. 4000 to 5000 cGy

A

d. 4000 to 5000 cGy

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3
Q

In which salivary gland do most salivary cancers occur?

a. Parotid
b. Submandibular
c. Sublingual
d. Minor

A

a. Parotid

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4
Q

Radiation therapy of which of the following cancers does not include regional lymph nodes?

a. Early staged parotid
b. Early staged larynx
c. Early staged nasopharynx
d. All of the above include regional lymph nodes

A

b. Early staged larynx

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5
Q

What structure of the neck is also known as the glottis?

a. True vocal cords
b. False vocal cord
c. Vestibular folds
d. Nasal turbinates

A

a. True vocal cords

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6
Q

What is the name of the leaf-shaped cartilage that protects the larynx?

a. Glottis
b. Epiglottis
c. Pharynx
d. Larynx

A

b. Epiglottis

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7
Q

What is commonly referred to as the voice box?

a. Vestibular folds
b. Epiglottis
c. Pharynx
d. Larynx

A

d. Larynx

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8
Q

What defines the posterior radiation field border for the treatment of a low-staged larynx cancer?

a. Posterior aspect of the hyoid
b. Anterior aspect of the vertebral body
c. Midvertebral body
d. Posterior aspect of the vertebral body

A

b. Anterior aspect of the vertebral body

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9
Q

What defines the superior radiation field border for the treatment of a low-staged larynx cancer?

a. Superior aspect of the hyoid
b. Cricoid cartilage
c. Inferior aspect of the mandible
d. Roof of the mouth

A

a. Superior aspect of the hyoid

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10
Q

What defines the inferior radiation field border for the treatment of a low=staged larynx cancer?

a. Superior aspect of the hyoid
b. Cricoid cartilage
c. Clavicles
d. C7-T1 intervertebral space

A

b. Cricoid cartilage

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11
Q

What is the most common histologic type of head and neck cancer?

a. Adenocarcinoma
b. Transitional cell carcinoma
c. Squamous cell carcinoma
d. Renal cell carcinoma

A

c. Squamous cell carcinoma

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12
Q

What is the most common form of larynx cancer?

a. Adenocarcinoma
b. Basal cell
c. Squamous cell
d. Transitional cell

A

c. Squamous cell

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13
Q

What condition frequently develops in users of smokeless tobacco?

a. Erythroplakia
b. Leukoplakia
c. Thrush
d. Dysplasia

A

b. Leukoplakia

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14
Q

What is the most common presenting symptom of larynx cancer?

a. Sore throat
b. Persistent cough
c. Hoarseness
d. Difficulty breathing

A

c. Hoarseness

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15
Q

What T stage is a glottic tumor that involves both vocal cords but does NOT impair mobility?

a. T1a
b. T1b
c. T1c
d. T2

A

b. T1b

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16
Q

What T stage is a glottic tumor that involves only one vocal cord but DOES impair mobility?

a. T1a
b. T1b
c. T1c
d. T2

A

d. T2

17
Q

Which of the following is a function of saliva?

a. Lubricate the food bolus
b. Digestion
c. Oral hygiene
d. All of the above

A

d. All of the above

18
Q

Which salivary gland is associated with the Stensen duct?

a. Parotid
b. Submandibular
c. Sublingual
d. Minor

A

a. Parotid

19
Q

Which of the following is not considered a risk factor for larynx cancer?

a. Epstein-Barr virus
b. Poor nutrition
c. Alcohol abuse
d. Human papillomavirus

A

a. Epstein-Barr virus

Epstein-Barr virus has been associated with nasopharyngeal carcinoma but not larynx cancer.

20
Q

Which anatomic structure contains the true vocal cords?

a. Glottis
b. Epiglottis
c. Pharynx
d. Larynx

A

a. Glottis

21
Q

Which of the following is NOT a division of the pharynx?

a. Parapharynx
b. Nasopharynx
c. Oropharynx
d. Laryngopharynx

A

a. Parapharynx

22
Q

One virus with increasing prevalence in patients diagnosed with certain tumors of the head and neck is the ___________ virus.

a. Epstein Barr
b. hepatitis B
c. human T-cell type 1
d. hepatitis C

A

a. Epstein Barr

23
Q

Bloody discharge from the nose would be a common symptom of a tumor located in the _____________________.

a. oropharynx
b. nasopharynx
c. hypopharynx
d. larynx

A

b. nasopharynx

24
Q

A wedged pair with a 90-degree hinge is a typical field arrangement for treatment of the __________________.

a. larynx
b. hypopharynx
c. maxillary sinus
d. nasopharynx

A

c. maxillary sinus

For maxillary tumors, doses of 60 to 63 Gy are delivered via an external beam, wedged-pair technique.