I’d also be cautious about the type of heart scan. The one listed (calcium scan) has the possibility of showing conditions which are either not present, or not showing existing conditions, with both possibly leading to misdiagnosis and mistreatment.
If at all possible, go for the “gold standard”, a CT angiogram – it’ll show everything.
I was wildly misdiagnosed and mistreated based on basic cardio tests – both the testings and the interpretations were wrong – until I went to an actual heart doc who got me the CTA…and a very clean bill of health.