Identify the following device?

AIIMS Rishikesh NO - 2019

Medical & Surgical Nursing

Easy

Appeared in: AIIMS Rishikesh NO - 2019

Explanation

The device in the image is a Laryngeal Mask Airway (LMA), a type of supraglottic airway.
Its most defining feature is the large, elliptical, inflatable cuff designed to form a seal around the laryngeal inlet, not enter the trachea.
The presence of an airway tube, an inflation line, and a pilot balloon are all characteristic features of an LMA.
It is used for maintaining a patent airway during anesthesia or resuscitation, especially when endotracheal intubation is difficult or not required.

Option A: A nasopharyngeal airway is a simple, flexible tube without a large inflatable mask, designed for insertion through the nose.
Option B: A Guedel airway (oropharyngeal airway) is a rigid, J-shaped plastic device with no inflatable parts, used to prevent the tongue from obstructing the airway in an unconscious patient.
Option C: A tracheal airway, or endotracheal tube (ETT), is a long tube that passes through the vocal cords into the trachea. While it has a cuff, it is a small balloon that seals the trachea, not a large mask that covers the laryngeal opening.

Clinical Relevance

Nursing practice connection: This is primarily an exam-oriented knowledge point with limited direct bedside application, so retain Identification of Airway Management Devices as background academic context rather than a clinical decision trigger.
The LMA is a crucial tool in the difficult airway algorithm. Nurses, especially in perioperative and emergency settings, must be able to identify it and assist with its insertion.
Unlike an endotracheal tube, the LMA does not provide definitive protection against aspiration of gastric contents. This is a critical patient safety consideration, and patients should be appropriately fasted.
Monitoring the cuff pressure is a key nursing responsibility. Over-inflation can cause nerve damage or a sore throat, while under-inflation can lead to an air leak and inadequate ventilation.

How to Approach the Question

First, carefully examine the image of the medical device. Pay close attention to its shape, components, and material.
Identify the key features: note the large, soft, mask-like structure at one end, the main tube, and the thin line with a small balloon (pilot balloon).
Consider the function of these features. The large mask suggests it's designed to seal an area rather than just be a conduit. The inflatable nature points to creating a seal.
Systematically evaluate each option against your visual analysis.
Eliminate 'Nasopharyngeal airway' and 'Guedel airway' as they are simpler devices without an inflatable mask.
Differentiate between 'Tracheal airway' (ETT) and 'Laryngeal mask airway'. Recall that an ETT goes into the trachea and has a small cuff, whereas the device shown has a large mask designed to sit over the larynx. This distinction points to the LMA as the correct answer.

Concept Tested & Keywords

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