AIIMS Delhi NO- 2019
Pharmacology
Easy

Identify the Yellow vaporizer in the following image:

Appeared in: AIIMS Delhi NO- 2019

Explanation

  • The international standard for anesthetic vaporizers designates the color yellow for Sevoflurane.
  • The image provides direct confirmation, as the yellow vaporizer is clearly labeled with the text "Sevoflurane".
  • Sevoflurane is a commonly used inhalation agent, especially for induction in children, due to its rapid onset and non-pungent, sweet smell.

Why Other Options Were Wrong

  • Option B: Isoflurane is incorrect. Its designated color code is purple, as also seen on the middle vaporizer in the image.
  • Option C: Enflurane is incorrect. Its designated color code is orange, as seen on the leftmost vaporizer in the image.
  • Option D: This option is incorrect because a correct option, Sevoflurane, is available and clearly identifiable as the yellow vaporizer.

Related Visual

Visual explanation — Related Visual
Clinical Relevance
  • Nursing practice connection: This is primarily an exam-oriented knowledge point with limited direct bedside application, so retain Identification of anesthetic agents based on the universal color-coding of vaporizers as background academic context rather than a clinical decision trigger.
  • The color-coding of anesthetic vaporizers is a critical patient safety feature. It minimizes the risk of accidentally administering the wrong volatile agent, which could have severe or fatal consequences due to differences in potency, side effects, and physiological effects.
  • Nurses, especially in the operating room and post-anesthesia care unit (PACU), must be familiar with this color-coding to quickly identify agents, anticipate patient responses, and participate effectively in emergency situations.
  • What if? If a vaporizer was misfilled (e.g., Isoflurane put into a yellow Sevoflurane vaporizer), the delivered concentration would be incorrect due to different vapor pressures, leading to either under- or over-dosing of the patient, a critical safety incident.
How to Approach the Question
  • First, analyze the question, which asks to identify the 'Yellow vaporizer' in the provided image.
  • Carefully examine the image, focusing on the vaporizer that is yellow. Read any labels or text visible on it.
  • Recall or reference the standard color-coding system for anesthetic agents. The color yellow is universally associated with a specific agent.
  • Compare your observation and knowledge with the given options. The label on the yellow vaporizer in the image clearly says 'Sevoflurane'.
  • Select the option that matches your identification. In this case, 'Sevoflurane' corresponds to the yellow color code and the label in the image.
Concept Tested & Keywords
  • Concept Tested: Identification of anesthetic agents based on the universal color-coding of vaporizers.
  • Stem keywords: Identify, Yellow vaporizer, image
  • Lead-in keywords: Identify
  • Clinical cues: The question requires visual identification from an image, linking a color to a specific medical agent.

Question ID

QewsMny4iNt70t0geA_h70

Reference Book

E6 Pharmacology Katzung 16e pp. 692-694, 715-717

E6 Pharmacology KD Tripathi Essentials 9e Part 2 p. 54-56

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