Chapter 11: Airway Management Flashcards
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The act of air moving into and out of the lungs during chest compressions.
Passive Ventilation
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Occurs when a foreign body partially obstructs the patient’s airway.
Mild Airway Obstruction
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The ability of the alveoli to expand when air is drawn in during inhalation.
Compliance
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A side-lying position used to maintain a clear airway in unconscious patients without injuries who are breathing adequately.
Recovery Position
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The two nerves that innervate the diaphragm; necessary for adequate breathing to occur.
Phrenic Nerves
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A combination mask and reservoir bag system that is the preferred way to give oxygen in the prehospital setting; delivers 90% inspired oxygen and prevents inhaling the exhaled gases.
Nonrebreathing Mask
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A tubular structure that forms the posterior portion of the oral cavity, which is bordered superiorly by the hard and soft palates, laterally by the cheeks, and inferiorly by the tongue.
Oropharynx
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A process in which molecules move from an area of higher concentration to an area of lower concentration.
Diffusion
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A condition of excessive oxygen consumption resulting in cellular and tissue damage.
Oxygen Toxicity
Explain how to assess respirations.
- Observe the following:
- Level of Consciouness
- Respiratory Rate
- Skin Signs
- Oxygen Saturation
- End-Tidal CO2
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Insertion of an endotracheal tube directly through the larynx between the vocal cords and into the trachea to maintain and protect an airway.
Endotracheal (ET) Intubation
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Any airway manipulation that induces the production of aerosols that may present a risk for airborne transmission of pathogens, such as CPR.
Aerosol-Generating Procedure
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An accumulation of air or gas in the pleural cavity that progressively increases pressure in the cheat and that interferes with cardiac function, with potentially fatal results.
Tension Pneumothorax
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Occurs when a foreign body completely obstructs the patient’s airway. The patient cannot breathe, talk, or cough.
Severe Airway Obstruction
List signs and symptoms of abnormal breathing.
- Irregulary inhalation / exhalation rythym.
- Adventitious lung sounds
- Tripod positioning
- Reduced expired air flow
- Use of accessory muscles
- Shallow depth
- Pale, cyantoic, cool, moist skin
- Skin pulling around ribs or above clavicle during inhalation
- Rate outside range for age group
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The biochemical processes that result in production of energy from nutrients within the cells; also called cellular respiration.
Metabolism
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The volume of air that reaches the alveoli. It is determined by subtracting the amount of dead space air from the tidal volume.
Alveolar Ventilation
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Metabolism that can proceed only in the presence of oxygen.
Aerobic Metabolism
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The space in between the vocal cords that is the narrowest portion of the adult’s airway.
Glottis
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The portion of the tidal volume that does not reach the alveoli and thus does not participate in gas exchange.
Dead Space
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Movements in which the skin pulls in around the ribs during inspiration.
Retractions
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Space within the chest that contains the heart, major blood vessels, vagus nerve, trachea, major bronchi, and esophagus; located between two lungs.
Mediastinum
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A high-pitched, whistling breath sound that is most prominent on expiration, and which suggests an obstruction or narrowing of the lower airways; occurs in asthma and bronchiolitis.
Wheezing
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The passive part of the breathing process in which the diaphragm and the intercostal muscles relax, forcing air out of the lungs.
Exhalation
What are the signs/symptoms of respiratory distress?
- Patient awake/often anxious
- Short of Breath
- Labored Breathing
- Speaks in short sentences
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A combination of two movements to open the airway by tilting the forehead back and lifting the chin; not used for trauma patients.
Head Tilt-Chin Lift Maneuver
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The amount of air that can be forcibly expelled from the lungs after breathing in as deeply as possible.
Vital Capacity
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Subdivision of the smaller bronchi in the lungs; made of smooth muscle and dilate or constrict in response to various stimuli.
Bronchioles
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Airway adjunct inserted into the mouth of an unresponsive patient to keep the tongue from blocking the airway and to facilitate suctioning the airway, if necessary.
Oropharyngeal (oral) Airway
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The metabolism that takes place in the absence of oxygen; the principal product is lactic acid.
Anaerobic Metabolism
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A collection of blood in the pleural cavity.
Hemothorax
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The volume of air moved through the lungs in 1 minute minus the red space; calculated by multiplying tidal volume (minus dead space) and respiratory rate.
Alveolar Minute Volume
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The part of the pharynx that lies above the level of the roof of the mouth, or palate.
Nasopharynx
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A harsh, high-pitched respiratory sound, generally heard during inspiration, that is caused by partial blockage or narrowing of the upper airway; may be audible without a stethoscope.
Stridor
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A method of ventilation used to treat critically ill patients with respiratory distress; can prevent need for endotracheal intubation.
Continuous Positive Airway Pressure (CPAP)
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Occasional, gasping breaths that occur after the has stopped.
Agonal Gasps
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Absence of spontaneous breathing.
Apnea
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Visualization of the vocal cords, and thereby placement of the endotracheal tube, that is facilitated by use of a video camera and monitor.
Video Laryngoscopy
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The process of providing oxygen, often in combination with ventilation, prior to intubation in order to raise the oxygen levels of body tissues; a critical step in advanced airway management. This extends the time during which an advanced airway can be placed in an apneic patient, because the more oxygen that is available in the alveoli, the longer the patient can maintain adequate gas exchange in the lungs during the procedure.
Preoxygenation
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Point at which the trachea bifurcates into the left and right mainstream bronchi.
Carina