What should a CNA do if Mr. Meyers passes a large black tarry stool?

The most appropriate action for a CNA when a patient, such as Mr. Meyers, passes a large black tarry stool is to notify the charge nurse immediately. This type of stool, known as melena, can indicate gastrointestinal bleeding or other serious medical conditions that require prompt medical evaluation and intervention. The charge nurse is responsible for the care of multiple patients and will assess the situation, potentially involving a physician if necessary.

While documenting the finding is important, and monitoring for additional symptoms can be part of ongoing patient care, these actions do not replace the need for immediate notification. Changing a patient's diet is typically outside the scope of practice for a CNA and should only be done based on recommendations from a healthcare professional. In cases of potential emergency or significant changes in a patient's condition, rapid communication with nursing staff ensures timely and effective treatment.