W/L Ch 30 Respiratory System Quiz

Question 1

Assume the initial treatment portals are AP/PA; after about how many fractions does the typical lung cancer patient start receiving oblique boost treatments?

a. 10
b. 20
c. 30
d. 40

Answer 1

b. 20

Initial field arrangements are generally prescribed between 4000 and 4500 cGy. Boost fields follow in various combinations until tumoricidal doses are achieved. At standard fractionation of 180 to 200 cGy per day, oblique boost treatments would begin after about the twentieth treatment.

Question 2

At what anatomical location does the trachea bifurcate into the right and left main stem bronchi?

a. Pleura
b. Primary bronchi
c. Carina
d. Alveoli

Answer 2

c. Carina

Question 3

Cancer in which lobe of the lung will typically never include treatment of the contralateral hilar lymph nodes unless proved positive?

a. Upper
b. Middle
c. Lower
d. None of the above

Answer 3

c. Lower

Question 4

In what part of the lung are primary squamous cell carcinomas usually found?

a. Superior
b. Central
c. Lateral
d. Peripheral

Answer 4

b. Central

Question 5

Mesothelioma is a cancer of which respiratory system component?

a. Pleura
b. Primary bronchi
c. Carina
d. Alveoli

Answer 5

a. Pleura

Question 6

What is the most effective single-agent chemotherapy drug?

a. Cisplatin
b. Paclitaxel
c. Vinorelbine
d. Gemcitabine

Answer 6

b. Paclitaxel

Question 7

According to the American Cancer Society, what is the percentage of lung cancers caused by smoking?

a. 37%
b. 67%
c. 87%
d. 97%

Answer 7

c. 87%

Question 8

What is the total dose delivered to a primary lung cancer?

a. 3000 cGy
b. 4000 cGy
c. 5000 cGy
d. Greater than 6000 cGy

Answer 8

d. Greater than 6000 cGy

Question 9

What is the primary function of the respiratory system?

a. Immunity
b. Exchange of gases
c. Production of somatostatin
d. Metabolism

Answer 9

b. Exchange of gases

Question 10

What is the leading cause of non–small cell carcinoma of the lung?

a. Smoking
b. Asbestos
c. Radiation
d. Genetics

Answer 10

a. Smoking

Question 11

What is the 5-year survival rate for small cell and non–small cell lung cancers?

a. 0.5%
b. 15%
c. 60%
d. 85%

Answer 11

b. 15%

Question 12

What is the 5-year survival rate for early-stage lung cancers?

a. 10%
b. 15%
c. 60%
d. 85%

Answer 12

c. 60%

Question 13

What is the most significant risk factor associated with mesothelioma?

a. Asbestos exposure
b. Smoking
c. Sun exposure
d. Radiation exposure

Answer 13

a. Asbestos exposure

Question 14

Which of the following syndromes is commonly associated with Pancoast tumors?

a. Paraneoplastic syndrome
b. Down syndrome
c. Tourette syndrome
d. Horner syndrome

Answer 14

d. Horner syndrome

Question 15

Which of the following symptoms is not associated with Horner syndrome?

a. Ipsilateral miosis
b. Ptosis
c. Exophthalmos
d. Anhidrosis

Answer 15

c. Exophthalmos

Horner syndrome is associated with enophthalmos but not exophthalmos.

Question 16

Which of the following is not a common acute side effect a patient may experience during the course of radiation treatments for lung cancer?

a. Dermatitis
b. Erythema
c. Esophagitis
d. Diarrhea

Answer 16

d. Diarrhea

Question 17

Which of the following terms is used to describe the surgical removal of an entire lung?

a. Lobectomy
b. Segmentectomy
c. Pneumonectomy
d. Wedge resection

Answer 17

c. Pneumonectomy

Question 18

Why should a patient’s arms be positioned above his or her head during radiation treatments of a primary lung cancer?

a. Patient comfort
b. Avoid treating normal tissue
c. Capture an additional device charge
d. Physician preference

Answer 18

b. Avoid treating normal tissue

Question 19

What performance status score is assigned to patients with disabilities who require special care and assistance but not hospitalization?

a. 20
b. 30
c. 40
d. 50
e. 60

Answer 19

c. 40

Question 20

What T stage is a lung cancer measuring 2.5 cm in its greatest dimension?

a. T1
b. T2
c. T3
d. T4

Answer 20

a. T1

Question 21

What diagnostic imaging tool is most commonly used to detect lung cancers?

a. Chest x-ray
b. CT
c. MR
d. PET

Answer 21

a. Chest x-ray

Question 22

One symptom associated with superior vena cava syndrome is orthopnea. Orthopnea is ____________________.

a. difficulty breathing
b. a bluish color of the skin
c. difficulty swallowing
d. inability to lie flat

Answer 22

d. inability to lie flat

Question 23

The clinical symptoms of a Pancoast tumor include ___________.

a. dysphagia
b. hoarseness
c. arm pain
d. persistent cough

Answer 23

c. arm pain

A patient with a Pancoast tumor may experience pain around the shoulder and down the arm, atrophy of the hand muscles, dyspnea, ptosis, enophthalmos, and anhidrosis.

Question 24

The tolerance dose (TD) 5/5 for the whole lung is approximately _____ Gy.

a. 20
b. 35
c. 45
d. 55

Answer 24

a. 20

The TD 5/5 for the whole lung is approximately 20 Gy.