Podcast
Questions and Answers
What is the purpose of an oropharyngeal airway?
What is the purpose of an oropharyngeal airway?
What is the Head-Tilt-Chin-Lift Maneuver used for?
What is the Head-Tilt-Chin-Lift Maneuver used for?
Opening the airway in a patient without a suspected cervical spine injury.
Intrapulmonary shunting occurs when blood coming from the right side of the heart bypasses _________ and returns to the left side of the heart in an unoxygenated state.
Intrapulmonary shunting occurs when blood coming from the right side of the heart bypasses _________ and returns to the left side of the heart in an unoxygenated state.
nonfunctional alveoli
Which of the following is NOT a structure of the lower airway?
Which of the following is NOT a structure of the lower airway?
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The diaphragm is innervated by which nerve?
The diaphragm is innervated by which nerve?
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What is the process of exchanging oxygen and carbon dioxide between the alveoli and the blood called?
What is the process of exchanging oxygen and carbon dioxide between the alveoli and the blood called?
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Which of the following is NOT a sign of hypoxia?
Which of the following is NOT a sign of hypoxia?
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What is ventilation?
What is ventilation?
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What does oxygenation refer to?
What does oxygenation refer to?
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What is respiration?
What is respiration?
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What is considered adequate breathing rate?
What is considered adequate breathing rate?
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Indicators for using an oropharyngeal airway include unresponsive patients without a gag reflex and _________.
Indicators for using an oropharyngeal airway include unresponsive patients without a gag reflex and _________.
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What does it mean if a patient is apneic?
What does it mean if a patient is apneic?
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What is aspiration?
What is aspiration?
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What is anemia?
What is anemia?
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What does hypoglycemia mean?
What does hypoglycemia mean?
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What is the recovery position?
What is the recovery position?
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What is a nasopharyngeal airway?
What is a nasopharyngeal airway?
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What does P.I.S.S stand for?
What does P.I.S.S stand for?
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What are common oxygen levels indoors?
What are common oxygen levels indoors?
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When should you take an oxygen tank out of service?
When should you take an oxygen tank out of service?
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What does C.P.A.P stand for?
What does C.P.A.P stand for?
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Study Notes
Airway Management Concepts
- Oropharyngeal Airway: Prevents the tongue from blocking the upper airway; facilitates suctioning of the oropharynx.
- Head-Tilt-Chin-Lift Maneuver: Essential technique for airway opening in patients without suspected cervical spine injury.
Intrapulmonary Shunting
- Caused by nonfunctional alveoli leading to blood from the right heart returning unoxygenated to the left heart.
- Impairment in respiration results from insufficient pulmonary surfactant and diminished gas exchange.
Structures of the Airway
- The lower airway includes trachea, bronchioles, and alveoli, but not the epiglottis.
Diaphragm Nerve Supply
- Innervated by the phrenic nerve, crucial for contraction during respiration.
Gas Exchange Process
- External Respiration: The exchange of oxygen and carbon dioxide between alveoli and capillaries.
Signs of Hypoxia
- Indicators include tachycardia, cyanosis, and weak pulse; dehydration is not a sign of hypoxia.
Definitions Related to Breathing
- Ventilation: Movement of air in and out of the lungs.
- Oxygenation: Involves loading oxygen molecules onto hemoglobin in the bloodstream.
- Respiration: Refers to gas exchange in alveoli and body tissues.
- Adequate Breathing: Defined as 12-20 breaths per minute at rest.
Airway Management Indicators
- Oropharyngeal Airway indicated for unresponsive patients without a gag reflex and apneic patients being ventilated.
- Apneic Patients: Defined as those not breathing.
- Aspiration: Involves the introduction of foreign materials into the lungs.
Anemia and Its Effects
- Characterized by insufficient healthy red blood cells, affecting oxygen transport and carbon dioxide removal.
Recovery Position
- Patients should be placed on their left side if breathing independently and without injuries.
Nasopharyngeal Airway Use
- Appropriate for semiconscious or unconscious patients with an intact gag reflex who cannot maintain airway spontaneously.
Safety Systems and Oxygen Levels
- Pin Index Safety System (P.I.S.S): A safety feature for gas cylinders.
- Oxygen Availability: Room air contains 21% oxygen; nasal cannula delivers 24-44%; BVM with reservoir provides 95-100%.
Oxygen Tank Service Limit
- Oxygen tanks should be removed from service when pressure drops to 500 pounds per square inch (PSI).
CPAP Definition
- Stands for Continuous Positive Airway Pressure, used to maintain open airways during sleep.
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Description
This quiz covers key concepts from EMT Chapter 10, focusing on airway management techniques. It includes definitions of critical terms such as oropharyngeal airway and the head-tilt-chin-lift maneuver. Test your understanding of these essential skills for effective emergency response.
