"Create a detailed image of a patient performing a lung function test (spirometry). The patient should be seated, wearing a long-sleeved plaid shirt. He should have a blue nose clip in his nose to block airflow through his nostrils. The patient is holding a spirometer, a white and gray plastic device, with both hands. The spirometer tube should be placed in the patient's mouth. The patient's expression should be neutral and focused, as if he or she is following instructions. a healthcare professional. The background should be neutral, without visual distractions. The lighting should be bright and uniform, highlighting the details of the device and the patient."