What best represents a concluding request in a referral letter?

The concluding request in a referral letter is effectively represented by a phrase that directly prompts the recipient to take action regarding the patient. In this instance, the phrase "Could you please examine the patient" clearly asks the recipient to perform a specific task—an examination of the patient. This not only reinforces the purpose of the referral, which is to seek further evaluation or intervention, but also invites a response or action, making it an appropriate concluding statement.

The other options provide information or context but do not invoke a direct response. For example, stating "As a result, the patient needs therapy" informs about the necessity for therapy but does not actively request the recipient to undertake an examination or any specific action. Similarly, "On her next visit, we will reassess" indicates a future plan but does not conclude with a request for the recipient's action, and "The medical history shows no issues" provides background information rather than a call for action. Therefore, the correct choice stands out as it explicitly seeks the involvement of the recipient in the patient's care.