Can someone have a myocardial perfusion scan with a pacemaker?

Yes: Yes, patients with implanted pacemakers have nuclear stress tests/myocardial perfusion scans. The EKG portion of the test will reflect the pacemaker (and likely a left bundle branch block) but reversible ischemia can still be detected in the scans.

Yes: Yes , usually a chemical stress with Adenosine , persantine, or Dipyridamole and thallium or sestamibi.

Yes: A pacemaker should not adversely affect the myocardial perfusion scan in any way and you should be confident going ahead with the scan. The scan will not harm the pacemaker.