What is the maximum flow rate for a nasal cannula?
Answer(s): D
A nasal cannula is used to administer O2 at flow rates from 2-6 LPM, delivering an O2 concentration of 28-44%.
What is the following device?A device designed to facilitate the blind intubation of a patient. It consists of a cuffed double-lumen tube with one blind end. Inflation of the cuff allows the device to function as an endotracheal tube and closes off the esophagus, allowing ventilation and preventing reflux of gastric contents.
Answer(s): B
This device is also known as a Combi-Tube.
In order to provide oxygen therapy at “100%” what should the flow rate be?
Answer(s): A
12-15 LPM administered via an NBR or non-rebreather mask is considered “100% O2”.
What airway opening maneuver should be used on a man that has fallen off a ladder and is suffering from respiratory distress?
The jaw thrust maneuver should be used to open the airway of any patient who has suffered a traumatic injury.
A device that delivers a specific amount of medication to the lungs, by supplying a short burst of aerosolized medicine that is inhaled by the patient is known as a(n) _______________.
Answer(s): C
A metered dose inhaler is commonly used to treat asthma, chronic obstructive pulmonary disease, and other respiratory problems.
The anatomy of the airway consists of the upper and the lower airway. The upper airway starts at the mouth and nares and ends at the _______________.
The airway is divided into two different anatomical locations; the upper airway and lower airway. The upper airway starts where air enters the body, nose (nares) and the mouth. Air will pass through the nose and is filtered and warmed before passing through the remainder of the upper airway and entering the lower airway. The upper airway ends at the cricoid cartilage, the distal end of the larynx. The thyroid cartilage is located at the proximal end of the larynx.
The tongue often is a source of airway obstruction; it falls back and occludes the _______________.
The pharynx or throat is often occluded by the tongue falling back and obstructing air flow. When air enters the nostrils, it passes through the nasopharynx, then the oropharynx, and then the pharynx before it enters the trachea. Jaw thrust or chin-lift will pull the tongue off the back of the pharynx to open the airway allowing air flow to the lungs. The trachea is too distal for the tongue to occlude it.
The lower airway ends at the alveoli, where gas exchange occurs. Oxygen moves to the hemoglobin by passing through a semipermeable membrane. Where does this occur?
The bronchi subdivide into smaller and smaller passages, they end with tiny air sacs called alveoli. The alveoli are covered in capillaries, this is where the gas exchange occurs. The carbon dioxide moves off of the hemoglobin and oxygen moves to the hemoglobin by diffusion. Movement of a gas from a higher concentration to a lower concentration. At the level of the capillaries is where the arteries switch to veins, capillaries are so small only one blood cell can pass through at a time.
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question #18s answer should be a, not d. this should be corrected. it should be minvalidityperiod
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