Normal temperature of an Operation Theater should be maintained between?

AIIMS Delhi NO - 2017

Medical & Surgical Nursing

Easy

Appeared in: AIIMS Delhi NO - 2017

Explanation

The recommended temperature for an operation theater is approximately 21°C (±3°C), which establishes a range of 18°C to 24°C.
The option of 18-21°C falls squarely within this guideline, balancing the need for infection control with patient and staff safety.
This cooler temperature range helps to inhibit the growth of microorganisms, reducing the risk of surgical site infections.
It also provides a comfortable working environment for the surgical team, who are heavily gowned and work under bright, heat-producing lights.

Option A: This temperature range is too high. Warmer temperatures can promote the growth of bacteria, increasing the risk of infection. It would also be uncomfortably hot for the surgical staff.
Option B: This range is generally too cold. While the upper end (20°C) is acceptable, temperatures as low as 15°C significantly increase the risk of inadvertent perioperative hypothermia in the patient.
Option D: This temperature range is far too high for an operating theater. It would create an environment conducive to rapid bacterial proliferation and cause significant discomfort and risk of error for the surgical team.

Clinical Relevance

Nursing practice connection: This is primarily an exam-oriented knowledge point with limited direct bedside application, so retain Operation Theater Environmental Standards as background academic context rather than a clinical decision trigger.
The circulating nurse is often responsible for monitoring and documenting that the operating room environment, including temperature and humidity, meets the established safety standards before and during a procedure.
Maintaining the correct temperature is a key component of aseptic technique and a crucial intervention in the prevention of surgical site infections (SSIs), a major cause of postoperative morbidity.
What if? The patient is a neonate or a burn victim? For these vulnerable populations, the room temperature is often intentionally increased to prevent profound and rapid hypothermia, as their ability to self-regulate body temperature is compromised. The surgical team may use personal cooling vests in such situations.

How to Approach the Question

This is a factual recall question that tests your knowledge of standard clinical environment parameters.
First, identify the core of the question: the required temperature for an Operation Theater (OT).
Recall the principle that OT environments are kept cool to inhibit bacterial growth and for the comfort of the gowned surgical team.
Also, consider the risk of patient hypothermia. The temperature must be a balance between these factors.
Evaluate the given options. Eliminate ranges that are obviously too warm (e.g., above 25°C) as they would promote infection.
Eliminate ranges that are excessively cold (e.g., 15°C) as they would pose a high risk of hypothermia to the patient under anesthesia.

Concept Tested & Keywords

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E6 Nursing Brunner Adult Health 3SA Vol 1 Part 1 p. 77-79