Unlock document.
This document is partially blurred.
Unlock all pages and 1 million more documents.
Get Access
23) The metabolism that creates large amounts of carbon dioxide and lactic acid but generates
little energy is called:
A) homeostatic.
B) hyperoxic.
C) aerobic.
D) anaerobic.
Objective: 7.3
24) Our blood transports oxygen from the lungs to the cells and returns with what byproduct of
metabolism?
A) Lactic acid
B) Carbolic acid
C) Carbon dioxide
D) Carbon monoxide
Objective: 7.3
11
25) The respiratory system moves air in and out; however, to ________ cells, the air that is
inhaled must meet up with the circulatory system.
A) defuse
B) hyperoxygenate
C) register
D) perfuse
Objective: 7.4
26) The seat of respiratory control is found in the:
A) nose.
B) lungs.
C) chest.
D) medulla oblongata.
Objective: 7.4
12
27) What is the best description of the chest's mechanical functions?
A) The chest is a closed space with only one opening; the trachea, to inspire air; the diaphragm
contracts down and the intercostal muscles expand the ribs, causing a negative pressure that fills
the lungs with air.
B) The diaphragm contracts, causing the intercostal muscles that are attached to the lungs to also
contract, which moves the air into the lungs.
C) With the chest being an airtight space, the act of breathing occurs when the muscles of the
diaphragm and intercostal relax, which causes the lungs to expand and air to flow into the lungs.
D) The chest is a closed space, and the pleural space surrounds the lungs; when the diaphragm
contracts and the intercostals expand, the chest and lungs move outward and downward,
allowing expiration and gas exchange in the lungs.
Objective: 7.4
28) ________ blood returns to the right side of the heart.
A) Deoxygenated
B) Anemic
C) Red
D) Oxygenated
Objective: 7.4
13
29) A disruption of the balance between oncotic pressure and hydrostatic pressure is critical to
regulating:
A) oxygenation and perfusion.
B) blood pressure and cell hydration.
C) perfusion and proper circulation to the tissues.
D) waste removal and urine.
Objective: 7.4
30) What is FiO2?
A) The amount of oxygen delivered via an airway adjunct in liters per minute
B) The concentration of oxygen in our inhaled air, which is referred to as the fraction of inspired
oxygen
C) The concentration of gases in our expired air, which is referred to as the fraction of used
oxygen
D) The flow rate of gases provided to the patient by mask or nasal cannula
Objective: 7.4
14
31) A patient breathing in room air should be receiving ________ percent oxygen.
A) 21
B) 5
C) 16
D) 100
Objective: 7.4
32) What is a patent airway?
A) A rigid suction device used to remove fluid and foreign objects from the pharynx to secure the
airway
B) A term used by EMS practitioners to indicate that the patient has a secured and opened airway
necessary for life
C) The condition of the patient's airway at the start of a lifesaving intervention
D) An airway that is in need of securing via an oral or nasal pharyngeal airway
Objective: 7.4
15
33) What is the correct order of air flow from the nose to the alveoli in the lungs?
A) Nose, pharynx, hypopharynx, epiglottis, trachea, crania, mainstem bronchi, alveoli
B) Mouth, pharynx, epiglottis, hypopharynx, trachea, mainstem bronchi, crania, alveoli
C) Nose, nasopharynx, pharynx, hypopharynx, larynx, trachea, bronchi, alveoli
D) Nose, hyperpharynx, pharynx, hypopharynx, trachea, mainstem bronchi, bronchi, alveoli
Objective: 7.4
34) The potential space between the lung and chest wall is called the:
A) carina space.
B) lung space.
C) dead space.
D) pleural space.
Objective: 7.4
16
35) Which of the following statements provides reasons for the disruption of respiratory control?
A) A medical, structural, and mechanical failure that has initiated the cascade of life-threatening
problems will interrupt this control.
B) A structural reason that has caused collapse of the upper and lower airways to block the flow
of oxygen to the alveoli can interrupt this control.
C) Medical reasons, infections, trauma, toxins, and drugs, along with neurologic disorders, can
interrupt this control.
D) Mechanical failure, soft-tissue damage, obstruction, and lack of perfusion will interrupt this
control.
Objective: 7.4
36) When carbon dioxide is not exchanged, the net result is high carbon dioxide, a condition
called ________, within the body.
A) hyperemia
B) hypercapnia
C) hyperthermia
D) hyperglycemia
Objective: 7.4
17
37) A condition that is caused by a decreased number of red blood cells is called:
A) polycythemia.
B) erythrocythemia.
C) leukemia.
D) anemia.
Objective: 7.4
38) If a hole is created in the chest wall, air could escape or be drawn in, or if bleeding develops
within the chest, air and blood can accumulate in the pleural space. This would force the lung to:
A) increase respirations.
B) increase the minute volume.
C) collapse.
D) work harder with minimal problems.
Objective: 7.5
18
39) The disruption of lung tissue by mechanical forces or medical problems can upset diffusion,
which is defined as:
A) the process of gas exchange between the alveoli and the capillaries.
B) the ability of the lungs to expand equally during inspiration.
C) maintaining enough positive pressure in the pleural space to keep the lungs from collapsing.
D) the exchange of gases in the bronchi.
Objective: 7.5
40) The net result of respiratory challenges is low oxygen, also called ________, within the
body.
A) anorexia
B) hypoglycemia
C) hypoxia
D) anoxia
Objective: 7.5
19
41) Injuries to the brain and spinal cord, sepsis, and severe allergic reactions can cause what
similar cardiovascular problem?
A) Increased SVR
B) Loss of tone
C) Hypertension
D) Permeability
Objective: 7.5
42) What is the name of the heart dysfunction caused by an electrical source that causes the heart
to beat too fast?
A) Tachycardia
B) Trauma
C) Heart attack
D) Bradycardia
Objective: 7.5
20
