Identify the instrument in the following image.

DSSSB 6 September 2024

Medical & Surgical Nursing

Easy

Appeared in: DSSSB 6 September 2024

Explanation

The instrument in the image is a Balfour retractor, a type of self-retaining retractor.
Its key features, visible in the image, are two lateral blades on a frame and a central, curved 'bladder' blade.
This design allows it to hold an abdominal incision open in three directions (laterally and inferiorly) without being held.
It is specifically designed for major abdominal surgeries, such as laparotomies, to provide wide exposure of the surgical field.

Option A: A Senn retractor is a small, double-ended, handheld instrument used for superficial tissue retraction, which does not match the large, self-retaining frame structure seen in the image.
Option B: A Deaver retractor is a large, handheld, 'question mark' shaped instrument. The instrument in the image is self-retaining, not handheld.
Option D: An Alm retractor is a small, self-retaining retractor with sharp, pronged tips, typically used in hand or foot surgery. The instrument in the image is much larger and designed for abdominal surgery.

Clinical Relevance

Nursing practice connection: This is primarily an exam-oriented knowledge point with limited direct bedside application, so retain Identification of surgical instruments as background academic context rather than a clinical decision trigger.
Nurses in the operating room must be able to quickly and accurately identify surgical instruments like the Balfour retractor to ensure the smooth progression of surgery.
Proper handling, assembly, and placement of self-retaining retractors are crucial for patient safety to avoid nerve compression (like femoral nerve injury) or pressure sores during long procedures.
The circulating nurse is responsible for ensuring all parts of the retractor are accounted for before and after the procedure to prevent retained surgical items.

How to Approach the Question

First, carefully examine the image of the instrument. Note its key characteristics: it is large, made of metal, and has a complex frame structure.
Identify the mechanism of action. The instrument has a ratcheted bar and blades that can be fixed in place, which indicates it is a 'self-retaining' retractor.
Observe the different components. Note the two side blades for lateral retraction and the central, curved blade for retracting organs.
Consider the overall size and structure. This is a large instrument designed for a major body cavity, not for superficial use or small incisions.
Evaluate the given options based on your observations. A Senn retractor is small and handheld. A Deaver retractor is large but handheld. An Alm retractor is self-retaining but small and delicate.
Conclude that the Balfour retractor is the only option that matches the large, self-retaining, multi-bladed instrument designed for abdominal surgery shown in the image.

Concept Tested & Keywords

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E6 Gynecology Williams p. 429-437