Respiratory Function Flashcards
Primary function of the respiratory system
Replenishes the body’s oxygen supply and eliminates waste from the blood as Co2
Mouth, nose, and pharynx
Upper respiratory tract organs
Trachea, lobar bronchi, segmental bronchi, and the lungs
Lower respiratory tract organs
Bronchi branch into
bronchioles
Terminal destination is
the alveoli
Millions of sacs where gas exchange happens
alveoli
Transfers oxygen to organs
Alveoli
Neuromuscular coordinated effort of inspiration and exhalation that changes with age and disease
Ventilation
Passing of oxygen from the alveoli
Gas diffusion
Passing of gas from the alveoli into the blood
Gas transport
Control of ventilation is regulated by
CO2
This determines depth and frequency of ventilation
CO2
When CO2 is elevated, breathing rate is
higher
Most accurate indicator of oxygenation
Blood gas
Blood gas
O2 + CO2
This lines he tract
Cilia
This is protective in nature. Causes sneezing and coughing to protect lower respiratory tract
Cilia
Major function of the upper respiratory tract
Warm and humidify oxygen
Major function of lower respiratory tract
Further filtration and clean incoming air
The sneeze and the cough reflexes also protect the lungs and airways
Normal adult breathing rate
12-20 per minute
Which part of breathing takes longer, exhalation or inhalation?
Exhalation
The diaphragm goes in what direction during breathing?
Up
Normal increased breathing comes with ______ only
Exercise
Normal breathing should be
Nearly Effortless and almost unnoticeable
In the older adult, lung changes include
Decrease ciliary activity
Stiffening of chest wall
Cough is less propulsive
What happens if mucus pools in the lungs?
Bacteria builds in the sitting mucus
What encourages mucus movement in the lungs?
Coughing
A sudden constriction of the muscles in the walls of the bronchioles. It causes difficulty in breathing which ranges from mild to severe. Occurs in asthma, chronic bronchitis and anaphylaxis.
Bronchospasm or a bronchial spasm
FiO2
Fraction of inspired oxygen
It is a fraction of the amount of oxygen a patient is inhaling produced by an oxygen device such as a nasal cannula or mask.
FiO2
Percentage of oxygen in FiO2
21%
What can lower respiration rate and raise risk of aspiration?
CNS depressants
Compromissed immune systems need
Plasma, protein, and fluids
Fluids do what to secretions?
Thins and mobilizes secretions to make it easier to cough
Respiratory problems in obese patients
Stomach presses against the diaphragm and makes it more difficult to breathe
Restricted lung movement and airway obstruction will cause
O2 Deprivation and exhaustion
Lungs that stiffen tend to
Tend to collapse because they cannot expand
A complete or partial collapse of the entire lung or area (lobe) of the lung.
Atelectasis
It occurs when the tiny air sacs (alveoli) within the lung become deflated or possibly filled with alveolar fluid. There is no gas exchange
Atelectasis
Pulmonary fibrosis causes
Scarring of the lungs
RDS
Respiratory distress syndrome
Occurs when fluid builds up in the tiny, elastic air sacs (alveoli) in your lungs, Typically occurs in people who are already critically ill or who have significant injuries.
ARDS - Acute respiratory distress syndrome
Smoke inhalation causes
Tar in the lungs
Fractured ribs can alter breathing because
Pain causes restriction of movement
Any process which reduces the diameter of the conducting airways
Airway obstruction
A seal like sound that is the sign of an emergency (airway obstruction)
Stridor
Treatment for airway obstruction
Suction, meds, cool air, and upright positioning
Types of inflammation that can cause airway obstruction
Asthma and Bronchitis
Coughing is a ______ response to an irritant
Reflexive
Clear, white sputum
allergic
Yellow, green sputum
infection
Bloody sputum
Hemoptysis
Hemoptysis could be a sign of
Cancer