What are 'Chits' primarily used for in a medical context?

In a medical context, chits are primarily used to communicate specific physical limitations of a patient. This might involve relaying important information about the patient's ability to perform certain activities, whether due to an injury, a chronic condition, or after undergoing a procedure. These chits serve as a formal and clear way to inform relevant personnel—such as medical staff or commanding officers—of any restrictions a patient may have, ensuring that appropriate accommodations are made regarding their care and responsibilities.

The other options, while relevant to various aspects of healthcare communication, do not accurately capture the primary use of chits within the medical setting. Formal requests for additional medical supplies focus more on resource management, while registering patient complaints addresses issues of patient satisfaction or quality of care. Offering feedback on medical services pertains to evaluative measures rather than the direct conveyance of patient limitations. Thus, the correct understanding of chits emphasizes their role in accurately communicating a patient's specific physical capabilities and restrictions.