Identify the instrument below?& x20; - AIIMS Delhi NO - 2018

AIIMS Delhi NO - 2018

Medical Surgical Nursing

Easy

Appeared in: AIIMS Delhi NO - 2018

Explanation

The instrument is a True-Cut or core biopsy needle, identified by its long cannula and handle mechanism designed for tissue sampling.
Its primary function is to obtain a cylindrical core of tissue, which is essential for histopathological analysis.
This type of biopsy provides more comprehensive diagnostic information about tissue architecture compared to fine-needle aspiration (FNA), which only collects cellular material.
It is commonly used for diagnosing abnormalities found in solid organs such as the breast, liver, kidney, or prostate.

Option B: An infusion pump is an electronic machine used to control the rate of intravenous fluid or medication delivery. It is not a handheld instrument for tissue sampling.
Option C: An insulin pen is a small, portable device for self-injection of insulin. It uses a very short and fine needle for subcutaneous delivery, which looks very different from the instrument shown.
Option D: A USG (ultrasound) probe, or transducer, is a device used to transmit and receive sound waves for medical imaging. It has a smooth, broad surface that is placed on the skin and does not involve a needle.

Clinical Relevance

Nursing practice connection: This is primarily an exam-oriented knowledge point with limited direct bedside application, so retain Identification of surgical instruments used for tissue biopsy as background academic context rather than a clinical decision trigger.
Core needle biopsy is a cornerstone in the diagnosis of cancer, providing essential tissue for grading tumors and guiding treatment decisions.
The nurse's role during a biopsy procedure includes patient education, ensuring informed consent, positioning the patient, providing sedation and analgesia as ordered, and correctly handling and labeling the specimen for the lab.
Post-procedure, the nurse monitors the biopsy site for bleeding, hematoma, or signs of infection and provides pain management.

How to Approach the Question

First, carefully examine the instrument in the image. Note its overall structure: a handle for gripping and a long, metallic needle portion.
Observe the key features. The instrument is not a simple syringe; it has a more complex handle, suggesting a mechanical action beyond simple injection or aspiration.
Recognize that the robust needle and mechanism are designed for penetrating solid tissue to obtain a sample, not for injecting fluid or imaging.
Evaluate the given options. 'True Cut biopsy needle or Core biopsy needle' accurately describes an instrument with this appearance and function.
Rule out the other options based on their known functions and appearances: an infusion pump is a machine, an insulin pen is a small injector, and a USG probe is an imaging transducer.

Concept Tested & Keywords

Concept Tested: Identification of surgical instruments used for tissue biopsy.
Stem keywords: Identify, instrument
Lead-in keywords: BEST, MOST RELEVANT CLUE
Clinical cues: The visual appearance of a long needle with a handle and a visible mechanism for tissue sampling.

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