Depends on how urgent the issue is. You want to be sure you’re treating them for the appropriate disease, after all. Mysterious blobs on an X-ray can be very vague, very difficult to figure out, and may be nothing at all. False positive diagnoses can lead to expensive, painful, potentially harmful unnecessary treatments.
More potentially urgent things will get treated ASAP. A detached retina needs treatment the same day or you risk further, permanent vision damage (assuming some hasn’t already been caused).
My husband was diagnosed with high blood pressure and high cholesterol (and no known familial history), and his doctor opted to suggest dietary changes and followup appointments every three months or so, and didn’t prescribe medications until a year of that hadn’t worked. But he had mild high blood pressure. Show up in a doctor’s office with 160/110 BP and you’re probably being admitted to the hospital that day.