41) Which congenital respiratory disease results in the oversecretion of mucus and clogging of respiratory passageways:

A) asthma

B) emphysema

C) cleft palate

D) atelectasis

E) cystic fibrosis

42) The molecule that prevents lung collapse by lowering the surface tension of the water film lining each alveolar sac is called:

A) resorbin

B) renin

C) lecithin

D) surfactant

E) fibrosin

43) Surfactant is usually present in fetal lungs in adequate quantities by:

A) 20-22 weeks of pregnancy

B) 22-24 weeks of pregnancy

C) 24-26 weeks of pregnancy

D) 26-28 weeks of pregnancy

E) 28-30 weeks of pregnancy

44) The abbreviation IRDS stands for:

A) infant respiratory disease state

B) intermittent respiratory distress state

C) infant respiratory distress syndrome

D) intermittent respiratory disease syndrome

E) infant respiratory disease syndrome

45) What is the most common cause for lung cancer:

A) diet

B) work environment

C) asthma

D) hereditary

E) smoking

46) The respiratory rate in adults is:

A) 5-10 respirations per minute

B) 12-18 respirations per minute

C) 20-25 respirations per minute

D) 30 respirations per minute

E) over 40 respirations per minute

47) The homeostatic imbalance associated with the death of many full-term newborn infants is called:

A) CF

B) SIDS

C) CTRL

D) COPD

E) IRDS

48) Obstruction of the trachea by a piece of food can lead to:

A) hemothorax

B) pleurisy

C) aspiration pneumonia

D) pneumothorax

E) pulmonary tamponade

49) Which of these age-related disorders is related to loss of elasticity of the lungs and hypoxia:

A) asthma

B) sleep apnea

C) tuberculosis

D) pneumonia

E) sudden infant death syndrome

50) Which one of the following is NOT true of lung cancer:

A) it accounts for one-third of all cancer deaths in the U.S.

B) its incidence is currently increasing

C) it is generally more prevalent in males than females

D) most types of lung cancer are very aggressive

E) lung cancers often metastasize rapidly and widely