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 and most widely used gas for creating a pneumoperitoneum in laparoscopic surgery.
It is non-flammable, which is a critical safety feature as electrocautery is frequently used in these procedures.
CO₂ is highly soluble in blood. This property drastically reduces the risk of a life-threatening gas embolism, as any gas that enters the bloodstream dissolves quickly and is safely eliminated through respiration.
It is inexpensive, readily available, and rapidly cleared from the body via the lungs, allowing for good control by the anesthesia team.

Option A: Nitrogen (N₂) has very low solubility in blood. If it were to enter a blood vessel, it would form stable gas bubbles, leading to a high risk of a potentially fatal gas embolism.
Option C: Oxygen (O₂) actively supports combustion. Its use for insufflation would create an extremely dangerous fire and explosion hazard in the operating room, especially with the use of energy devices like electrocautery.
Option D: Helium, like nitrogen, has very low blood solubility, which carries a significant risk of gas embolism. It is also much more expensive than carbon dioxide.

*
*

Clinical Relevance

Nursing practice connection: Knowing Insufflation gases for laparoscopic surgery helps nurses interpret findings accurately and avoid errors in routine assessment, medication administration, and patient teaching.
A key nursing responsibility is monitoring the patient for complications related to CO₂ insufflation. This includes observing for signs of hypercarbia (elevated end-tidal CO₂ on the monitor), subcutaneous emphysema (gas trapped under the skin, which feels like crackling), and hemodynamic changes.
Post-operatively, nurses should assess for and manage shoulder-tip pain, which is a common complaint. Reassuring the patient that this is a known side effect and encouraging ambulation can help dissipate the gas and relieve discomfort.
What if the patient has severe COPD or other respiratory conditions? The patient's ability to eliminate the absorbed CO₂ might be compromised, increasing the risk of respiratory acidosis. The surgical and anesthesia teams may use lower insufflation pressures, limit the procedure time, or in some cases, determine that a laparoscopic approach is too risky and opt for an open procedure instead.

How to Approach the Question

First, identify the core of the question. It asks for the most common gas used in laparoscopy.
Recall or deduce the essential safety requirements for a gas to be pumped into the abdomen for surgery. The two most critical factors are: 1) It must not be flammable, due to the use of electrocautery. 2) It must be safe if it accidentally enters the bloodstream.
Evaluate each option based on these safety criteria.
Eliminate Oxygen (O₂) immediately because it supports combustion and would create a fire hazard.
Consider the risk of gas embolism. A gas that is highly soluble in blood will dissolve if it enters a vessel, preventing a blockage. A gas with low solubility will form a stable bubble (embolus), which can be fatal. CO₂ is highly soluble, while Nitrogen (N₂) and Helium are not.
Based on this analysis, CO₂ is the only option that is both non-flammable and has high blood solubility, making it the safest and therefore the standard choice.

Concept Tested & Keywords

QzZc2HqEoT9vKREtZXAWn3