Question

Which measure of ventilation is the maximal amount of air that can be moved in and out of the lungs with forced inhalation and exhalation?

A) vital capacity

B) forced expiratory volume

C) tidal volume

D) total lung capacity

53. Which of the following increases the affinity of oxygen to hemoglobin?

A) iron

B) heme

C) myoglobin

D) magnesium

54. Which of the following refers to cellular deprivation of oxygen?

A) hypoxemia

B) hypercapnia

C) hypoxia

D) all of these

55. How would you know if you had hypoxemia or hypercapnia?

A) measure oxygen saturations

B) perform pulmonary function testing

C) measure arterial blood gases

D) observe for signs and symptoms

56. Your patient describes a sensation of shortness of breath and the inability to get enough air. This is documented as:

A) dyspnea

B) orthopnea

C) hemoptysis

D) aspiration

57. You notice that your patient has a barrel chest. This is most likely a result of:

A) smoking

B) chronic costochondritis

C) chronic alveolar distention

D) hypoxia

58. Upon auscultation of your patient's lung sounds, you notice a high-pitched wheezing sound. This is due to:

A) airway constriction

B) bronchodilation

C) fluid accumulation in the lungs

D) asthma

E) All the above

Answer 1

Ans52) A) Vital Capacity

Explaination:

The vital capacity (VC) measures the maximum amount of air that can be inhaled or exhaled during a respiratory cycle.

53) A) Iron

Explaination:

Iron increases the affinity of oxygen to hemoglobin

54)C) Hypoxia

Explaination:

Hypoxia is the deficiency in the amount of oxygen reaching the tissues i.e cellular deprivation of oxygen.

55)C) Measure arterial blood gases

Explaination:

An arterial blood gas (ABG) test measures the acidity (pH) and the levels of oxygen and carbon dioxide in the blood from an artery. This test is used to check how well lungs are able to move oxygen into the blood and remove carbon dioxide from the blood.

Hypoxemia: A low level of oxygen in the blood.

Hypercapnia: Carbon dioxide retention