Which of the following sizes should rigid C-collars be available in?

Rigid C-collars are essential for immobilizing the cervical spine in patients suspected of spinal injuries. It is crucial to have a range of sizes available to accommodate different patient populations effectively. The correct answer is that C-collars should be available in adult, children, and infant sizes.

Providing C-collars for all these categories is vital because adults, children, and infants have significantly different anatomical structures and requirements for proper spinal immobilization. Using improperly sized collars can lead to inadequate immobilization, increased movement, and the potential for further injury. By ensuring that C-collars are available in various sizes, emergency medical personnel can provide care that is tailored to the individual needs of each patient, enhancing safety and effectiveness during transport and treatment.

In contrast, limiting the C-collars to only adult and child sizes, or solely to adults, fails to address the needs of the infant population, which can be particularly vulnerable in emergencies. Not having appropriate sizes on hand could hinder effective patient care and compromise outcomes.