Identify the following instrument that is denoted in the image. .jpeg ) - NORCET 2 - 2021 (shift-1)

NORCET 2 - 2021 (shift-1)

Image Based Questions (E5)

Easy

Appeared in: NORCET 2 - 2021 (shift-1)

Explanation

The instrument shown is a Guedel tube, a type of oropharyngeal airway (OPA).
Its characteristic features, visible in the image, include a rigid C-shaped curve, a flange to prevent it from being swallowed, and a central channel for air passage.
This device is specifically designed to maintain airway patency in an unconscious patient by holding the tongue away from the posterior pharyngeal wall.
Correct sizing is determined by measuring from the corner of the mouth to the angle of the jaw.

Option A: An Endotracheal (ET) tube is a much longer, flexible tube that is inserted through the mouth or nose into the trachea. It typically has an inflatable cuff and a 15mm connector for a ventilator, which are not seen here.
Option B: A tracheostomy tube is a short, curved tube with a neck flange designed to be inserted into a surgical opening (stoma) in the neck. The device in the image is designed for oral insertion.
Option C: A Laryngeal Mask Airway (LMA) is a supraglottic airway device. It consists of a tube connected to a soft, elliptical, inflatable mask that seals around the laryngeal inlet, which is structurally very different from the rigid, curved device shown.

Visual 1: Infographic. A comparative chart showing the Guedel airway, ET tube, tracheostomy tube, and LMA side-by-side, with labels pointing to their key parts and a small diagram showing their correct placement in the human airway.
Visual 2: Diagram. A two-step diagram illustrating the correct technique for sizing a Guedel airway (measuring from the corner of the mouth to the angle of the jaw) and the 'rotate 180 degrees' insertion method.

Clinical Relevance

Nursing practice connection: This is primarily an exam-oriented knowledge point with limited direct bedside application, so retain Identification and purpose of basic airway adjuncts as background academic context rather than a clinical decision trigger.
The most critical nursing consideration for a Guedel airway is patient assessment. It must only be used in an unresponsive patient with no gag reflex to prevent vomiting and aspiration.
Incorrect sizing is dangerous. An OPA that is too large can obstruct the larynx, while one that is too small can push the tongue back, worsening the obstruction.
Nurses must provide frequent oral care and suctioning as needed through the device's channel to manage secretions.

How to Approach the Question

First, analyze the visual characteristics of the instrument in the image. Note its distinct C-shape, rigid material, and the flange at one end.
Next, mentally review the features of the common airway devices listed in the options.
Compare the instrument in the image to your knowledge of each option. An ET tube is long and cuffed. A tracheostomy tube has a neck plate. An LMA has a soft mask end. The image does not match these descriptions.
Recognize the classic design of the instrument as an oropharyngeal airway, commonly known as a Guedel tube.
Confirm the selection by recalling that a Guedel tube's purpose is to hold the tongue forward in an unconscious patient, which is consistent with its shape and design.

Concept Tested & Keywords

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