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CCTC NUR 120 RESPIRATORY DISORDERS actual Exam questions and answers 2025 latest update
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CCTC NUR 120 RESPIRATORY DISORDERS actual Exam questions and answers 2025 latest update
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CCTC NUR 120 RESPIRATORYDISORDERS actual Exam
questions and answers 2025
latest update.
Ventilation- - answer movement of air in and out of the airways
function of upper respiratory tract: - answer warms and filters
inspired air so that the lower respiratory tract (the lungs) can
accomplish gas exchange or diffusion
upper respiratory tract consists of: - answer nose, paranasal
sinuses, pharynx, tonsils, adenoids, larynx, and trachea
where does gas exchange occur? - answer alveoli
apnea- - answer temporary cessation of breathing
Compliance- - answer measure of the force required to expand or
inflate the lungs
dyspnea- - answer difficulty breathing
hypoxemia- - answer decrease in arterial oxygen tension in the
blood
hypoxia- - answer decrease in oxygen supply to the tissues and
cells
,pulmonary diffusion- - answer exchange of gas molecules (oxygen
and carbon dioxide) from areas of high concentration to areas of low
concentration
pulmonary perfusion- - answer blood flow through the pulmonary
vasculature
respiration- - answer gas exchange between atmospheric air and
the blood and between the blood and cells of the body
lateral portion of the body verses the front portion of the body -
answer lateral should be smaller than the front
Cells in the Alveoli: Type 1- - answer 95% of alveoli have type 1
cells. They provide a barrier between the air the pt is breathing and
the alveolar surface
Cells in the alveoli: Type 2- - answer produces surfactant and type
1 cells
Cells in the alveoli: Type 3- - answer alveolar macrophage, they are
phagocytic cells that ingest foreign matter and as a result provide
an important defense mechanism
Type 1 and Type 2 cells in the alveoli make up the: - answer
alveolar epithelium
Surfactant- - answer reduces surface tension and improves overall
lung function
,How many alveoli is the lung made up of? - answer about 300
million
visceral pleura: - answer covers the lungs
Parietal pleura: - answer lines the thoracic cavity, lateral wall of
the mediastinum, diaphragm, and inner aspects of the ribs
Mediastinum: - answer in the middle of the thorax, between the
pleural sacs that contain the two lungs. It contains all the thoracic
tissue outside the lungs
Things that affect the volume in someones lungs: - answer age,
health condition, capacity
Oxygen Transport: - answer Oxygen is supplied to, and carbon
dioxide is removed from, cells by way of the circulating blood
through the thin walls of the capillaries. Oxygen diffuses from the
capillary through the capillary wall to the interstitial fluid. At this
point, it diffuses through the membrane of tissue cells, where it is
used by mitochondria for cellular respiration.
Does inspiratory phase or the expiratory phase require energy? -
answer The inspiratory phase of respiration normally requires
energy. The expiratory phase is normally passive, requiring very
little energy
Air Pressure Variances: - answer Air flows from a region of higher
pressure to a region of lower pressure.
Airway Resistance: - answer Resistance is determined by the
radius, or size of the airway through which the air is flowing, as well
as by lung volumes and airflow velocity.
, Conditions associated with decreased compliance include: - answer
morbid obesity, pneumothorax, hemothorax, pleural effusion,
pulmonary edema, atelectasis, pulmonary fibrosis, and acute
respiratory distress syndrome (ARDS).
Medulla Oblongata control of ventilation: - answer controls rate
and depth of breathing. Main control center
Pons control of ventilation: - answer Tells the medulla what to do.
The lower portion of the pons stimulates the medulla and tells the
medulla the pt needs to breath deeper and inspire longer. The upper
portion of the pons controls the respiratory rate
Chemoreceptors control of ventilation: - answer located in the
spinal fluid. They respond to the changes in blood with increased or
decreased pH levels. Stimulates rate and depth of how pt is
breathing. Periphery chemoreceptors are found in heart (aortic arch
and carotid arch). They are dependent on O2 levels, pH, and CO2
Baroreceptors control of ventilation: - answer found in the aortic
and carotid bodies. They respond to arterial BP
Partial Pressure- - answer pressure exerted by each type of gas in
the mixture of gases
Major determinant of the acid-base balance in the body? - answer
CO2 and O2
Perfusion can be affected by: - answer gravity, pressure in the
alveoli, pressure in the right ventricle (pulmonary artery pressure).
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