So, if the only two people in the house are the victim and the spouse, it sounds like the best option might be to unlock/open the front door, initiate a call 911 using the speakerphone (hands free), and start/continue CPR until help arrives (maybe skip the door). That stopping CPR to unpack, apply, & start the AED would do more harm than good. Is that correct?

Also, when there is no pulse, where exactly do I apply the tourniquet and hemostatic gauze??? (just kidding!!!). Especially given my fear (dread?) of using my little chainsaw, your advice is heard loud and clear.