Final answer:
Objective data for documentation includes coughing frequency and characteristics, vital signs, and the presence of wheezes and rhonchi during auscultation.
Step-by-step explanation:
The nurse should document the following as objective data in a patient's health record: the coughing frequency and duration, the characteristics of the phlegm (thick, yellow), the vital signs including blood pressure (150/90 mm Hg), pulse rate (92 beats/minute), and respiratory rate (22 breaths/minute). In addition, the presence of wheezing and rhonchi that were observed in both lung bases during auscultation should be documented as objective findings. These data points are directly observed or measured by the healthcare provider during the exam.