Can contrast agents cause an increase in body temperature?

Jan 15, 2025 Source: Cainiu Health

Dr. Ren Yi

Introduction

Contrast agents may cause an increase in body temperature. In a normal body, after the contrast agent enters the body, it may trigger a certain degree of non-specific inflammatory response in local tissues or the circulatory system. Before administering contrast agents, it is recommended to inform the physician about any history of allergies and to take appropriate preventive measures. Additionally, vital signs should be closely monitored after the administration of contrast agents.

Generally, contrast agents may cause an increase in body temperature. The specific analysis is as follows:

In a normal body, after the administration of contrast agents, they may trigger a certain degree of non-specific inflammatory response in local tissues or the circulatory system, stimulating the body to produce pyrogenic substances such as interleukins and other cytokines. These substances can act on the body's temperature-regulating center, shifting the thermoregulatory set point upward, thereby increasing heat production and decreasing heat dissipation, ultimately leading to an elevation in body temperature.

At the same time, some individuals may be allergic to contrast agents. When an allergic reaction is triggered by the injection, the immune system becomes activated and releases various inflammatory mediators such as histamine. These mediators can cause a series of stress responses in the body, thereby affecting the temperature-regulating center and possibly leading to an increase in body temperature. However, fever caused by allergies is often accompanied by other allergic symptoms such as skin itching, rash, and rapid breathing. It is recommended to seek medical attention promptly and undergo anti-allergy treatment under the guidance of a physician.

Prior to the use of contrast agents, it is recommended to inform the physician of any allergy history and take appropriate preventive measures. Additionally, vital signs should be closely monitored after the administration of contrast agents.

View All

Does CT iodinated contrast medium lower body temperature?

CT iodinated contrast media refer to the iodine-based contrast agents used during CT examinations. Under normal circumstances, CT iodinated contrast media do not cause a decrease in body temperature. If required, their use should be performed under the guidance of a physician. Iodinated contrast agents are primarily used to enhance image contrast during CT scans, helping physicians observe internal structures in the patient more clearly.

View Full Answer

What are transvaginal ultrasound and hysterosalpingography?

Transvaginal ultrasound and hysterosalpingography are two commonly used gynecological and reproductive system examinations. Transvaginal ultrasound uses ultrasound imaging to observe pelvic organs, while hysterosalpingography employs contrast agents to visualize and assess the patency of the fallopian tubes. These two examinations serve different purposes, and their application should be determined based on specific medical conditions. Before choosing an examination, it's important to clarify individual needs—for example, women experiencing prolonged infertility during pregnancy planning may prioritize hysterosalpingography.