Final answer:
The nurse will document a CURB-65 score of 5 in the client's record, indicating the severity of pneumonia and the need for hospitalization.
Step-by-step explanation:
The nurse will document a CURB-65 score of 5 in the client's record. The CURB-65 score is used to assess the severity of community-acquired pneumonia and to determine the need for hospitalization. It evaluates five criteria: Confusion, Urea, Respiratory rate, Blood pressure, and Age. In this case, the client's confusion, respiratory rate, and blood pressure meet the criteria for a score of 5.