NORCET 3 - 2022 (Shif…: Which of the following gas is commonly used in laparoscopy procedure?

NORCET 3 - 2022 (Shift-1)

Medical & Surgical Nursing

Easy

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

Explanation

Carbon dioxide (CO2) is the standard gas used to create a pneumoperitoneum (inflating the abdomen) for laparoscopic surgery.
Its primary advantage is its high solubility in blood. This means if gas accidentally enters a blood vessel, it dissolves quickly, significantly reducing the risk of a life-threatening gas embolism.
CO2 is non-flammable, making it safe to use with electrocautery devices, which are common in surgery.
The body can rapidly eliminate excess CO2 through the respiratory system, allowing for effective physiological management during the procedure.

Option A: Nitrogen (N2) has very low solubility in blood. This property makes it dangerous for insufflation because if it enters the bloodstream, it does not dissolve and can form large, stable bubbles, leading to a high risk of a fatal gas embolism.
Option C: Oxygen (O2) supports combustion. Using it as an insufflation gas would create an extremely high risk of fire or explosion in the presence of electrosurgical instruments.
Option D: Helium, like nitrogen, is an inert gas with very low blood solubility. This poses a significant risk for gas embolism. It is also more expensive than CO2.

Clinical Relevance

Nursing practice connection: Knowing Insufflation Gas for Laparoscopy helps nurses interpret findings accurately and avoid errors in routine assessment, medication administration, and patient teaching.
A key nursing responsibility during laparoscopy is monitoring the patient's end-tidal CO2 (EtCO2) to detect hypercarbia, which can lead to acidosis. Any significant, sustained increase must be reported to the anesthesia provider.
Post-operatively, nurses should assess for and manage shoulder-tip pain, a common complaint caused by diaphragmatic irritation from residual CO2. Positioning and analgesia are primary interventions.
What if? If a patient has severe chronic obstructive pulmonary disease (COPD) and cannot effectively eliminate CO2, the surgical team might opt for a lower insufflation pressure, a shorter procedure time, or even a gasless laparoscopic technique or an open procedure to avoid the risks of hypercarbia.

How to Approach the Question

First, identify the core of the question: it asks for the specific gas used to inflate the abdomen during laparoscopy.
Think about the environment and risks of surgery. The operating room contains ignition sources (electrocautery). This means the gas must be non-flammable. This helps to question the suitability of Oxygen (O2).
Consider the major physiological risk of pumping gas into the body: a gas embolism, where a gas bubble blocks a blood vessel. To minimize this risk, the gas should be highly soluble in blood so it can dissolve safely if it enters a vessel.
Evaluate the options based on these two critical criteria: flammability and solubility.
CO2 is non-flammable and highly soluble. O2 is flammable. N2 and Helium are non-flammable but have very low solubility.
Based on this analysis, CO2 is the only option that is both safe from a fire perspective and minimizes the risk of a gas embolism, making it the standard choice.

Concept Tested & Keywords

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E6 Gynecology Williams p. 48-72