NU 545 - Unit 5 Practice Questions and Answers

NU 545 - Unit 5 Practice Questions and Answers


Question 1.
Which statement is true regarding the pulmonary system?

Correct Answer: The larynx connects the upper and lower airways


Question 2.
Which statement is true regarding the lower airways?

Correct Answer: The right and left main bronchi enter the lungs at the hila.


Question 3.
What process describes the exchange of carbon dioxide (CO2) for oxygen?

Correct Answer: Respiration


Question 4.
Which receptor monitors the pH, partial pressure of CO2 (PaCO2), and the partial pressure
of oxygen (PaO2) in arterial blood?

Correct Answer: Central chemoreceptors


Question 5.
Which physiologic alteration is present in an individual with emphysema?

Correct Answer: Increased compliance


Question 6.
Which steps are involved in the process of gas exchange? (Select all that apply.)

Correct Answer: Ventilation, Diffusion, Perfusion


Question 7.
Which structures are considered part of the upper airway? (Select all that apply.)

Correct Answer: Nasopharynx, Oropharynx


Question 8.
Which structures are considered part of the acinus? (Select all that apply.)

Correct Answer: Respiratory bronchioles, Alveolar ducts, Alveoli


Question 9.
Which structures are major accessory muscles of respiration? (Select all that apply.)

Correct Answer: Diaphragm, External Intercostals

, Question 10.
Which alterations involved with aging are considered normal? (Select all that apply.)

Correct Answer: Increased flow resistance, Alterations in gas exchange, Loss of
recoil


Question 11.
The binding of oxygen to hemoglobin occurs in the lungs; the reverse process in which
oxygen is released from hemoglobin occurs in the?

Correct Answer: Tissues


Question 12.
The mechanical movement of gas or air into and out of the lungs is known as ventilation.
Breathing is usually involuntary because changes in the rate and volume are adjusted
automatically by the nervous system to maintain normal gas exchange. The respiratory
system in the brain that becomes active when increased ventilatory effort is required is
the?

Correct Answer: Dorsal respiratory group


Question 13.
Which illness is a type of liquefactive necrosis?

Correct Answer: Abscess


Question 14.
Which statement is true regarding bronchiolitis?

Correct Answer: Respiratory distress develops within 24-72 hours


Question 15.
What is the appropriate term for inadequate alveolar ventilation in relation to metabolic
demands?

Correct Answer: Hypoventilation


Question 16.
A person has respirations that are characterized by alternating periods of deep and
shallow breathing and apnea. What is the appropriate term for this breathing?

Correct Answer: Cheyne-Stokes


Question 17.
Which is the most common cause of pulmonary edema?

Correct Answer: Heart disease


Question 18.