Identify the size of the surgical blade? (NORCET-2021)

Appeared in: AIIMS Delhi NO - 2018

Explanation

The image displays a surgical blade with an elongated, triangular shape and a very sharp point.
This specific morphology is characteristic of a No. 11 surgical blade.
The No. 11 blade is designed for making precise, short, stab-like incisions, such as for inserting drains or accessing small vessels.

Option A: A No. 10 blade has a large, broad, curved cutting edge, which is distinctly different from the pointed, triangular blade shown in the image.
Option C: A No. 12 blade is a small, sickle-shaped (hooked) blade with the cutting edge on the inside of the curve. The blade in the image is straight and pointed, not hooked.
Option D: A No. 13 blade is not a standard, commonly used surgical blade. The user may be thinking of a No. 15 blade, which has a small, curved shape for fine, detailed incisions, unlike the blade pictured.

Clinical Relevance

Nursing practice connection: This is primarily an exam-oriented knowledge point with limited direct bedside application, so retain Identification of surgical instruments based on visual characteristics as background academic context rather than a clinical decision trigger.
Nurses in the operating room or procedure units must accurately identify surgical instruments, including blades, to ensure the correct tool is available for the surgeon. This prevents delays and procedural errors.
Patient safety is paramount. Using the wrong blade can result in an improper incision, leading to increased tissue trauma, poor wound healing, or complications like air leaks after chest tube insertion.
Safe handling of sharps is a critical nursing competency. Knowing how to correctly load a No. 11 blade onto a scalpel handle and dispose of it properly in a sharps container minimizes the risk of injury to healthcare personnel.

How to Approach the Question

This is an image-based identification question, which requires visual recognition and recall of factual knowledge.
First, carefully examine the image provided. Note the distinct features of the surgical blade: its shape, the type of tip, and the cutting edge.
Observe that the blade has a long, straight cutting edge, a triangular shape, and a very sharp, pointed tip.
Next, access your knowledge of common surgical instruments. Recall the different types of surgical blades and their corresponding numbers.
Compare the features you observed in the image with the characteristics of each option. A No. 10 is curved, a No. 12 is hooked, and a No. 11 is triangular and pointed.
Conclude that the blade in the image matches the description of a No. 11 blade.

Concept Tested & Keywords

Concept Tested: Identification of surgical instruments based on visual characteristics.
Stem keywords: Identify, surgical blade, size
Lead-in keywords: Identify

Q6cb2IsZgCoQ0sD8uV7J6x

E6 Gynecology Williams p. 428-434

Practise the full AIIMS Delhi NO - 2018

Attempt every question from this paper in a timed mock, then review the full solution for each one.