Questions and Answers
What is the purpose of an oropharyngeal airway?
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.
nonfunctional alveoli
Which of the following is NOT a structure of the lower airway?
Signup and view all the answers
The diaphragm is innervated by which nerve?
Signup and view all the answers
What is the process of exchanging oxygen and carbon dioxide between the alveoli and the blood called?
Signup and view all the answers
Which of the following is NOT a sign of hypoxia?
Signup and view all the answers
What is ventilation?
Signup and view all the answers
What does oxygenation refer to?
Signup and view all the answers
What is respiration?
Signup and view all the answers
What is considered adequate breathing rate?
Signup and view all the answers
Indicators for using an oropharyngeal airway include unresponsive patients without a gag reflex and _________.
Signup and view all the answers
What does it mean if a patient is apneic?
Signup and view all the answers
What is aspiration?
Signup and view all the answers
What is anemia?
Signup and view all the answers
What does hypoglycemia mean?
Signup and view all the answers
What is the recovery position?
Signup and view all the answers
What is a nasopharyngeal airway?
Signup and view all the answers
What does P.I.S.S stand for?
Signup and view all the answers
What are common oxygen levels indoors?
Signup and view all the answers
When should you take an oxygen tank out of service?
Signup and view all the answers
What does C.P.A.P stand for?
Signup and view all the answers
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.
Studying That Suits You
Use AI to generate personalized quizzes and flashcards to suit your learning preferences.
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.