I may be wrong, but I believe ERs have to see you even if you have no insurance and no money. You could call the hospital first and ask their policy to save her a trip until you find one that does.
I am just a layperson, but her "slipping away" and coughing up blood worry me. The shortness of breath and hand tingling could be anxiety, but the slipping away and coughing up blood I know of no non-medical reason for. Possibly the accident that caused her shoulder dislocation has done something that is causing the coughing up blood and needs attention.
Be sure to warn any new place about her slipping away in case she has an unusual sensitivity to meds.
Probably best to just see a doctor before purchasing a body scan. coughing up blood is not normal and requires evaluation. You will have to use your own judgement on how bad the situation is and as to whether she needs to be seen in an ER this weekend.