What is a common use for helium in medical settings?

Helium is commonly used as a carrier gas in medical settings, particularly in specific forms of respiratory therapy and medical imaging applications. In these contexts, helium is appreciated for its low density, which can enhance the delivery of inhaled gases, allowing for easier movement within the lungs. This is especially beneficial for patients with airway obstructions, as it can help facilitate the smooth flow of gases, thereby improving breathing efficiency.

When helium is used in medical imaging, such as MRI scans, it is often combined with other gases to optimize the imaging process. Its non-reactive nature makes it a safe choice in various applications. While helium has other uses in medical contexts, such as in cryogenics and certain diagnostic procedures, its role as a carrier gas plays a crucial part in enhancing patient care by improving the delivery and distribution of therapeutic gases.