All of the following are advantages of ketamine except:

INI-CET EXAM -2025

Pharmacology

Medium

Appeared in: INI-CET EXAM -2025

Explanation

Ketamine's primary clinical role and original FDA approval in 1970 were as an anesthetic agent for procedures.
The advantages associated with its anesthetic use include producing a dissociative state, strong pain relief (analgesia), and sedation, often while preserving respiratory and cardiovascular function.
While the antidepressant effect of ketamine is a major therapeutic breakthrough, it represents a separate and distinct application, primarily for treatment-resistant depression.
In a question about the general advantages of ketamine, the anesthetic properties (dissociative anesthesia, analgesia, sedation) form a logical group, making the psychiatric application (relief from depression) the correct exception.

Option A: Dissociative anesthesia is the defining characteristic and a primary advantage of ketamine. It creates a trance-like state that separates the mind from the body's perception of pain, allowing procedures to be performed.
Option B: Relief from pain (analgesia) is one of the most significant advantages of ketamine. It provides profound pain control, often at sub-anesthetic doses.
Option C: Sedation is a key component of ketamine's effect and a desired advantage for performing medical or surgical procedures.

Visual 1: Table - A comparative table showing the differences in ketamine's use for anesthesia versus depression, detailing the typical dose (higher for anesthesia, lower for depression), route of administration, primary goal, and monitoring parameters.

Clinical Relevance

Nursing practice connection: This is primarily an exam-oriented knowledge point with limited direct bedside application, so retain Pharmacological properties and clinical applications of Ketamine as background academic context rather than a clinical decision trigger.
Ketamine has two distinct clinical pathways: as a procedural anesthetic/analgesic (often in emergency or pediatric settings) and as a rapid-acting treatment for severe depression.
Nurses must be vigilant in monitoring patients recovering from ketamine anesthesia for signs of emergence reaction, such as agitation, hallucinations, or confusion, and provide a calm, quiet environment.
What if? If a patient receiving ketamine for a procedure has a history of psychosis or uncontrolled hypertension, its use would be contraindicated. The nurse's role in obtaining a thorough medical history is critical for patient safety.

How to Approach the Question

First, identify that this is an 'EXCEPT' question. This means you are looking for the option that does not fit with the others.
Read the stem and all options to understand the central topic: the advantages of ketamine.
Analyze the options to find a common theme. Here, 'Dissociative anesthesia,' 'Relief from pain,' and 'Sedation' are all related to ketamine's function as an anesthetic agent for procedures.
Identify the outlier option. 'Relief from depression' is a therapeutic effect but for a different clinical application (psychiatry) compared to the other three (anesthesiology).
Therefore, the antidepressant effect is the exception in the context of ketamine's general anesthetic advantages.

Concept Tested & Keywords

Concept Tested: Pharmacological properties and clinical applications of Ketamine.
Stem keywords: ketamine, advantages
Lead-in keywords: except
Negative lead-in flag: This is a negative-lead-in question asking for the exception.

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