A 43 y/o male calls for an ambulance due to “crushing chest…

A 43 y/o male calls for an ambulance due to “crushing chest pain” that radiates down his left arm.  The patient’s skin is cool, pale and moist.  BP is 80/50, HR is 42, RR is 26 with clear and equal lung sounds.  The patient has no prior medical history and does not take any medications. The ECG shows a narrow complex second-degree Type I AV block with 10 non-perfusing unifocal PVC’s/minute.  The patient is slow to answer your questions.  Based upon this presentation, you suspect the patient to be suffering from which of the following?

A patient tells you that they see “bugs” crawling on the wal…

A patient tells you that they see “bugs” crawling on the walls and on their legs; however,  neither you nor your partner can actually see the “bugs” the patient is referring to.  The patient is anxious, diaphoretic and extremely excited.  Based upon these findings, you would attribute the “bugs” to: