Final answer:
The acceptable reporting of routine lab results is to send the results to the physician in a marked envelope.
Step-by-step explanation:
The acceptable reporting of routine lab results is to send the results to the physician in a marked envelope. This ensures that the results are delivered securely and directly to the healthcare provider who can interpret and discuss them with the patient. Sending the results to the physician in a marked envelope also maintains patient confidentiality and complies with HIPAA regulations.