NORCET 2 - 2021 (shift-1)
Medical & Surgical Nursing
Easy
Identify the following denoted image.
Appeared in: NORCET 2 - 2021 (shift-1)
Explanation
- The device shown is a spacer, characterized by its hollow chamber that attaches to a metered-dose inhaler (MDI).
- Its purpose is to act as a reservoir for the aerosolized medication, slowing it down and allowing for more effective inhalation into the lungs.
- The presence of a face mask indicates it is intended for a patient (like a young child or an older adult) who cannot form a tight seal with their lips around a standard mouthpiece.
- This design overcomes the challenge of coordinating the actuation of the inhaler with the patient's breath.
Why Other Options Were Wrong
- Option A: An inhaler (specifically, a metered-dose inhaler or MDI) is the canister containing the medication. The device in the image is an accessory that is used with an inhaler, not the inhaler itself.
- Option B: A nebulizer system is different. It uses a compressor to turn liquid medication into a mist. The image does not show a liquid medication cup or tubing connected to a compressor.
- Option C: A nebulizer is the machine that aerosolizes liquid medication. The device pictured is a passive holding chamber and does not generate a mist itself.
Related Visual
- Visual 1: Diagram - A side-by-side comparison of a spacer with an MDI and a complete nebulizer setup (compressor, tubing, mask/mouthpiece). This would highlight the key structural differences.
- Visual 2: Infographic - Step-by-step instructions on how to correctly use a spacer with a face mask for a child, showing shaking the MDI, attaching it, placing the mask, actuating the puff, and holding for several breaths.
Clinical Relevance
- Nursing practice connection: This is primarily an exam-oriented knowledge point with limited direct bedside application, so retain Identification of Respiratory Drug Delivery Devices as background academic context rather than a clinical decision trigger.
- Spacers significantly improve the efficacy of MDI medications by increasing the amount of drug delivered to the lungs (pulmonary deposition) and reducing the amount deposited in the oropharynx.
- For patients on inhaled corticosteroids, using a spacer is a critical nursing intervention to prevent oral candidiasis (thrush). Nurses must educate patients to rinse their mouth after use.
- In the Indian context, where respiratory illnesses are prevalent, ensuring patients can afford and correctly use spacers is a key public health challenge. Nurses play a vital role in patient education.
How to Approach the Question
- First, carefully examine the image provided. Identify the main components of the device.
- Observe the key features: a face mask, a hollow, transparent chamber, and a port at the opposite end.
- Consider the function of these components. The chamber is designed to hold something, and the port is shaped to receive a canister.
- Evaluate the given options against your observations. An 'inhaler' is the medication canister itself. A 'nebulizer' uses a compressor and liquid. The device shown is an accessory for an inhaler.
- Based on the structure (a holding chamber) and function (to space out the medication delivery), identify the device as a 'Spacer'.
- Confirm the choice by ruling out the other options based on their known appearance and mechanism of action.
Concept Tested & Keywords
- Concept Tested: Identification of Respiratory Drug Delivery Devices
- Stem keywords: Identify, denoted image
- Lead-in keywords: NOT
- Clinical cues: Image shows a device with a face mask and a chamber for an inhaler
- Negative lead-in flag: NOT changes the reasoning strategy; look for the exception or incorrect statement rather than the true statement.
Question ID
Q-IWU7TSqftIVS5gxEBpB_
Practise the full NORCET 2 - 2021 (shift-1)
Attempt every question from this paper in a timed mock, then review the full solution for each one.
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