conducting airway

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1. the passage by which air enters and leaves the lungs.
2. a mechanical device used for securing unobstructed respiration when the patient is not breathing or is otherwise unable to maintain a clear passage, such as during general anesthesia or respiratory arrest.
Oropharyngeal Airway. This device is inserted into the mouth to prevent the tongue from obstructing the pharynx.
Esophageal airway.
It should not be used on alert or semiconscious patients, as it invariably stimulates the gag reflex and causes vomiting or injury to the jaw unless the patient is deeply unconscious.

Selection of proper size is essential because an airway that is too short cannot lift the tongue away from the oropharynx. The airway should be gently inserted so as to avoid trauma to the mucous membranes. It must be inserted with the tip up and rotated 180 degrees when it reaches the back of the throat so that the tongue is not displaced back into the pharynx, where it will obstruct the air passage. The proper size is the distance from the earlobe to the edge of the mouth.
Esophageal Obturator Airway. This is a hollow tube inserted into the esophagus to maintain airway patency in unconscious persons and to permit positive-pressure ventilation through the face mask connected to the tube. It was designed to be used by trained pre-hospital medical personnel to establish an airway. Its use has declined because of training of pre-hospital medical personnel in the insertion of endotracheal tubes, and because studies have suggested poor performance.
Esophageal Gastric Tube Airway. This is a hollow tube with a balloon at the end, which is blindly inserted into the esophagus, obstructing the esophagus and theoretically forcing air into the trachea, thus decompressing the stomach and alleviating abdominal distention; it represents an improvement in the design of the esophageal obturator airway. Ventilation occurs in the oropharynx.
Nasopharyngeal Airway. This is a hollow tube placed through the nose into the nasopharynx to bypass upper airway obstruction or to decrease trauma from nasotracheal suctioning.
Endotracheal Tube (or Airway). This inflatable tube is inserted into the mouth or nose and passed into the trachea to provide mechanical ventilation, to provide a suction route, to prevent aspiration of stomach contents, and to bypass upper airway obstruction.
Tracheostomy. This involves a surgical incision into the trachea and insertion of a metal or plastic tube through the incision. (See also tracheostomy.)
airway clearance, ineffective a nursing diagnosis accepted by the North American Nursing Diagnosis Association, defined as inability by an individual to clear secretions or obstructions from the respiratory tract to maintain a clear airway. Etiologic factors include decreased energy and fatigue; infection, obstruction, or excessive secretions in the tracheobronchial tree; perceptual/cognitive impairment associated with decreased oxygenation to brain cells; and trauma to the respiratory tract.

Defining characteristics presented by a person with ineffective airway clearance are likely to include abnormal breath sounds, alterations in respiratory rate or depth, cough (effective or ineffective and with or without sputum), cyanosis, dyspnea, and possibly fever.
Patient Care. Goals and outcome criteria for planning and interventions to prevent, minimize, or alleviate ineffective airway clearance will depend on the patient's medical diagnosis, specific nursing diagnoses, and related pathophysiology. In general, the goals are to promote the movement of air in and out of the lungs; prevent development of infection, atelectasis, and accumulations of stagnant secretions in the lungs; and encourage preventive and therapeutic pulmonary hygiene to maintain good ventilation.

Some appropriate nursing interventions to accomplish these goals might include teaching the patient effective coughing practices, assisting with postural drainage and other techniques used by the respiratory therapist to remove secetions from the respiratory tract, helping the patient to stop smoking, helping the patient identify and avoid allergens in the environment, maintaining a clean and infection-free environment, repositioning and encouraging early ambulation in post-surgical patients, and providing instruction in ways to avoid extreme fatigue in patients with chronic obstructive pulmonary disease.
conducting airway the lower and upper airways together, from the nares to the terminal bronchioles.
lower airway the airway from the lower end of the larynx to the ends of the terminal bronchioles.
upper airway the airway from the nares and lips to the larynx.
Miller-Keane Encyclopedia and Dictionary of Medicine, Nursing, and Allied Health, Seventh Edition. © 2003 by Saunders, an imprint of Elsevier, Inc. All rights reserved.

con·duct·ing air·way

the airway from the nasal cavity to a terminal bronchiole.
Farlex Partner Medical Dictionary © Farlex 2012

con·duct·ing air·way

(kŏn-dŭkting ārwā)
Airway from nasal cavity to a terminal bronchiole.
Medical Dictionary for the Dental Professions © Farlex 2012
References in periodicals archive ?
Neutrophil-Conidium Interactions in the Conducting Airway Mucosa.
Here, were determined the effects of immunosuppression and neutropenia on neutrophil counts in the conducting airway wall, both before and after A.
Within the conducting airways, both mucins and Clara cell secretory protein (CCSP) have roles in airway disease (Ramsay et al.
There were no significant correlations between FVC, FEV1, and TLC with either alveolar NO ([C.sub.A] NO) or conducting airway ([J'.sub.awNO]) (Tables 4-7).
The other broad anatomic compartment was referred to as interstitium and consisted of all the interstitial compartments (i.e., the remaining compartments other than parenchymal lumens and lumens of conducting airways).
The recent discovery of profound remodeling in the distal conducting airways of young rhesus monkeys exposed since infancy to cyclic episodes of ozone and house dust mite aerosol (10) emphasizes the urgency of the situation.
As particles travel through the airway geometry, deposition occurs in the mouth-throat region, the conducting airways, and/or the alveolar space.
Conducting airways receive their blood supply from branches of bronchial arteries, while the terminal respiratory units receive blood from branches of the pulmonary arteries.
Likewise, these independent variables are relentless in working against us in our quest to achieve the goal of right sizing a medication particle, placing it at the targeted conducting airways where it can do the most good in regards to a specific ailment, and keeping the desired therapeutic effect for a period of time.
Depending on particle size, deposition occurs efficiently in the nose, the conducting airways, and the alveoli.
There was little evidence of visible particle accumulation in the larger conducting airways (generations 2-6), except in bronchial-associated lymphoid tissues and within peribronchial connective tissue.