When a non-rebreathing mask is intolerable for the patient. Patients with physical injuries, chronic airway obstruction, cluster headaches, and smoke inhalation use non-rebreather masks.
<h3>When is it appropriate to employ a nasopharyngeal airway?</h3>
A patient's nostril is entered with a thin, transparent, flexible tube called a nasopharyngeal airway (NPA). Bypassing upper airway congestion at the level of the nose, nasopharynx, or base of the tongue is the goal of the NPA. In order to avoid obstruction, it also prevents the tongue from falling backward against the pharyngeal wall.
<h3>Which of the following patients can be treated with nasopharyngeal airways?</h3>
For patients with an intact cough and gag reflex, NPAs can be used in patients who are aware, semiconscious, or unconscious, unlike oral airways.
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<h3><u>Ⲁⲛ⳽ⲱⲉⲅ:</u></h3>

<h3><u>Ⲋⲟⳑⳙⲧⳕⲟⲛ :</u></h3>
We are given that a cylinder shaped bucket is used as a sand container . We have to find how much sand it can hold , which can be found by knowing the volume of cylindrical bucket .The volume of a cylinder is given by :

where,
- π = 3.14
- r = 0.5 feet
- h = 2.5 feet




ㅤㅤㅤㅤㅤ~<u>H</u><u>e</u><u>n</u><u>c</u><u>e</u><u>,</u><u> </u><u>the </u><u>bucket </u><u>can </u><u>hold </u><u>1</u><u>.</u><u>9</u><u>6</u><u> </u><u>feet³</u><u> </u><u>of </u><u>sand!</u>

Answer:
All knowledge is learned through the senses, perceptions.
Some knowledge is learned by personal experience, personal perception, some knowledge can be learned by reading about the experiences of others.
There is no knowledge that is not learned by either (a) personal experience, perception, or (b) by learning from the experiences and perceptions of others.