NORCET 3 - 2022 (Shift-1)
Medical & Surgical Nursing
Easy

Identify the following device?

Appeared in: NORCET 3 - 2022 (Shift-1)

Explanation

  • The instrument in the image is a bipolar cautery forceps, characterized by its tweezer-like shape with two opposing tips.
  • In bipolar electrosurgery, one tip serves as the active electrode and the other as the return electrode.
  • The electrical current is confined to the tissue held between the tips, allowing for precise coagulation and minimizing thermal damage to adjacent structures.
  • Unlike monopolar cautery, a separate patient grounding pad is not needed, which increases safety, especially in delicate procedures or in patients with electronic implants.

Why Other Options Were Wrong

  • Option A: Monopolar cautery, often called a 'Bovie pencil,' is a pen-shaped instrument with a single active electrode. It requires a separate grounding pad placed on the patient to complete the electrical circuit.
  • Option C: A Harmonic Scalpel does not use electrical current. It uses high-frequency ultrasonic vibrations to cut and coagulate tissue simultaneously. Its appearance is typically a handpiece with a scissor-like or blade-like tip.
  • Option D: LigaSure is a specific brand of an advanced bipolar vessel sealing system. While it uses bipolar energy, it is designed to seal larger vessels (up to 7 mm) and uses a feedback-controlled energy delivery system. The jaws are typically more robust than the standard bipolar forceps shown.

Related Visual

side comparison of Monopolar Cautery, Bipolar Cautery, Harmonic Scalpel, and LigaSure. The infographic should show the appearance of each device, a simple diagram of its mechani...
Clinical Relevance
  • Nursing practice connection: This is primarily an exam-oriented knowledge point with limited direct bedside application, so retain Identification of surgical electrosurgical devices as background academic context rather than a clinical decision trigger.
  • Bipolar cautery is essential in surgeries where precision is critical and damage to surrounding tissue must be minimized, such as in neurosurgery, ophthalmic surgery, and plastic surgery.
  • Nurses must ensure that the correct energy device is available and functioning properly. For bipolar cautery, this includes keeping the tips clean of charred tissue to ensure effectiveness.
  • Patient safety is paramount. Bipolar cautery is often the preferred choice for patients with pacemakers or other implantable electronic devices, as the confined electrical circuit minimizes the risk of electromagnetic interference.
How to Approach the Question
  • This is an image-based identification question.
  • First, carefully examine the device in the image. Note its key physical features: it is shaped like forceps or tweezers, has two distinct tips, and a connector for a cord.
  • Next, consider the function implied by these features. The two tips suggest that the action occurs between them.
  • Review the characteristics of each option. Recall or look up the differences between monopolar cautery, bipolar cautery, Harmonic scalpel, and LigaSure.
  • Compare the visual evidence from the image with the descriptions of the options. The tweezer-like shape with two electrodes where current passes between them is the defining feature of bipolar cautery.
  • Eliminate the other options based on their distinct features: monopolar is a pen, Harmonic uses vibration, and LigaSure is a specialized vessel sealer.
Concept Tested & Keywords
  • Concept Tested: Identification of surgical electrosurgical devices.
  • Stem keywords: identify, device
  • Lead-in keywords: BEST, MOST RELEVANT CLUE

Question ID

QUsT-9hDXNnnmP4UB7893z

Reference Book

E6 Gynecology Williams pp. 28-53, 1-11

Practise the full NORCET 3 - 2022 (Shift-1)

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

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