Final answer:
The correct next step for a surgeon who needs an immediate diagnosis after an incisional biopsy is to send the specimen to pathology in a dry container for a frozen section, which is option A.
Step-by-step explanation:
The most appropriate next step after a surgeon has completed an incisional biopsy and requires an immediate diagnosis is to send the specimen to pathology in a dry specimen container so that a frozen section can be completed. Thus, the correct answer is A. The frozen section procedure involves quick freezing of the tissue biopsy, then thin sections are made with a microtome, and finally, they are stained for rapid microscopic examination. This technique provides a quick diagnostic opinion during surgical procedures. In contrast, permanent sections involve processing the tissue with chemicals like formalin, embedding it in wax, sectioning it thinly, and then staining, which takes a longer time and is usually not for immediate results.