AIIMS Delhi NO- 2019
Pharmacology
Easy
The following medication in the picture act as :
Appeared in: AIIMS Delhi NO- 2019
Explanation
- The image shows a vial of Lignocaine HCl 2% Injection, a common medication.
- The label on the vial explicitly identifies the medication as a "LOCAL ANAESTHETIC".
- Lignocaine (also known as Lidocaine) is a widely used drug that causes a temporary loss of sensation, including pain, in a specific area of the body.
- Its mechanism of action involves blocking sodium channels in nerve fibers, which prevents the transmission of pain signals.
Why Other Options Were Wrong
- Option B: Tooth extraction is a dental procedure, not the action of the medication. It is an application or indication for using a local anesthetic.
- Option C: Cannula insertion is a medical procedure. While a local anesthetic might be used to numb the skin before insertion to reduce pain, this is a use case, not the drug's action.
- Option D: Oral procedure is a broad category of medical interventions performed in the mouth. It describes a setting or type of application for a local anesthetic, not the drug's pharmacological class.
Related Visual
Clinical Relevance
- Nursing practice connection: This is primarily an exam-oriented knowledge point with limited direct bedside application, so retain Identification of drug class from visual information and pharmacological knowledge as background academic context rather than a clinical decision trigger.
- Nurses must be able to correctly identify medications by reading labels to ensure patient safety. This includes understanding the drug's name, concentration, and class.
- Differentiating between a drug's action (pharmacodynamics) and its indications (therapeutic uses) is a fundamental skill in safe medication administration.
- What if the vial was labeled 'Lignocaine with Adrenaline'? The nurse must recognize this is a different formulation. Adrenaline is a vasoconstrictor added to prolong the anesthetic effect and reduce bleeding. This combination is contraindicated for use on end-artery areas like fingers, toes, nose, and penis due to the risk of ischemic necrosis.
How to Approach the Question
- First, carefully examine the image provided. Read all the text visible on the medication's label.
- Identify the key information: the drug's name ('Lignocaine HCl'), its concentration ('2%'), and its pharmacological class, which is explicitly stated as 'LOCAL ANAESTHETIC'.
- Analyze the question, which asks what the medication 'act as'. This is asking for the drug's primary function or classification.
- Evaluate the given options. 'Local anesthetic' directly matches the information on the label and describes the drug's action.
- Recognize that the other options ('Tooth extraction', 'Cannula insertion', 'Oral procedure') are examples of procedures or applications where this drug is used, not the action of the drug itself.
- Select the option that correctly identifies the drug's pharmacological class as stated on its packaging.
Concept Tested & Keywords
- Concept Tested: Identification of drug class from visual information and pharmacological knowledge.
- Stem keywords: medication, picture, act as
- Lead-in keywords: act as
- Clinical cues: The label on the vial clearly states 'LOCAL ANAESTHETIC', which directly answers the question.
Question ID
QOWJS7HSTcKP-LBoWsP63f
Reference Book
E6 Pharmacology Nurses Shanbhag 3e p. 147-149
E6 Nursing Fundamentals Potter Perry 12e Part 5 p. 162-164
Practise the full AIIMS Delhi NO- 2019
Attempt every question from this paper in a timed mock, then review the full solution for each one.
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