Cardiovascular Life Support (ECLS) for
Healthcare Providers- General Exam Study
Guide – Practice Questions & Verified
Answers
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What are the upper airway structures?
Nose, Mouth, Pharynx (naso, oro, hypo), Larynx, Epiglottis, Thyroid Cartilage, Cricoid Cartilage,
Vocal cords.
What is the purpose of an oropharyngeal airway?
It separates the tongue from the posterior pharyngeal wall and relieves obstruction by the
tongue.
What is the correct size for an oropharyngeal airway?
From the corner of the mouth to the jaw angle.
When is the use of an oropharyngeal airway contraindicated?
In conscious and semi-conscious patients.
What is a nasopharyngeal airway also known as?
A nasal trumpet.
What is the size measurement for a nasopharyngeal airway?
From the tip of the nose to the earlobe.
What are some alternative airway devices?
Esophageal Obturator Airway (EOA), Double Lumen Combitube, Pharyngotracheal Lumen
Airway (King Airway), Laryngeal Mask Airway (LMA).
What is the function of the Esophageal Obturator Airway (EOA)?
It seals the esophagus with a cuff and is used when intubation is not possible.
,What are the hazards associated with the EOA?
Vomiting, aspiration, and accidental tracheal intubation.
What is the Laryngeal Mask Airway (LMA) used for?
It is an alternative to endotracheal intubation.
What are the limitations of the LMA?
May misplace in unstable airways, cannot withstand high airway pressure, and does not protect
against aspiration.
What is the Esophageal-Tracheal Combitube (ETC)?
A device for blind intubation that can be inserted into the esophagus or trachea.
What is the King Airway?
A newer, simplified supraglottic airway device that has largely replaced the Combitube.
What are the key differences between the King LT and Combitube?
King LT uses one port for both balloons, is simpler, and is faster and easier to place.
What are the types of tracheal airways?
Endotracheal (ETT), Oral, Nasal, Tracheostomy Tubes.
What are the characteristics of an Endotracheal Tube (ETT)?
Semi-rigid, beveled distal end, Murphy eye, standard 15mm proximal end, radiopaque line, cuff
and pilot balloon.
What are the indications for tracheostomy tubes?
Long-term ventilatory support and bypassing upper airway obstruction.
What is the purpose of the Murphy eye on an ETT?
To provide an alternative pathway for airflow if the main opening becomes obstructed.
What is the optimal duration of use for an LMA?
Less than 2 hours, up to 8 hours for experienced users.
What is the risk of excessive cuff pressure in an LMA?
It may lead to malposition of the device.
What is the primary function of the cricoid cartilage?
, To provide support and structure to the airway.
What is the role of the epiglottis?
To prevent food and liquid from entering the trachea during swallowing.
What is the primary goal of Basic Life Support (BLS)?
To restore ventilation and circulation to victims of airway obstruction and respiratory or cardiac
arrest.
What should be done immediately upon recognizing Sudden Cardiac Arrest (SCA)?
Activate the emergency response system.
What is the minimum compression rate for CPR?
100 to 120 compressions per minute.
What percentage of out-of-hospital cardiac arrests occur in homes?
73.4%.
What is the recommended compression depth for chest compressions in adults?
A minimum depth of 2 inches (5 cm).
What is a common complication of CPR related to the airway?
Gastric inflation leading to aspiration of vomitus into the lungs.
What is a contraindication for initiating CPR?
A 'Do Not Resuscitate' (DNR) order is in effect.
What role do respiratory therapists (RTs) play in medical emergencies?
They manage the airway
Provide ventilatory and circulatory support
Drug and Electrical Therapy
Monitor patients before, during, and after a cardiac arrest.
What are the signs of Sudden Cardiac Arrest (SCA)?
Lack of movement or response, and no normal breathing or only gasping.
What is the significance of performing CPR immediately after cardiac arrest?
It can double or triple the chance of survival from an out-of-hospital cardiac arrest.