To explain: The reason why injecting excess insu could impair brain function.

Activation of α-adrenergic receptors in vascular smooth muscle stimulates (vasodilation or vasoconstriction). Give an example of an organ system where this occurs.

Mr. John Doe, a 72-year-old male with a long-standing history of chronic heart failure attributed to ischemic heart disease, was brought to the emergency department by his family due to increasing episodes of shortness of breath, especially at night, and swelling in his legs over the past week. Mr. Doe has been managing his condition with a regimen of ACE inhibitors, beta-blockers, and loop diuretics. Despite his adherence to medication, he has experienced gradual weight gain and decreased urine output in the days leading up to his presentation. His medical history is also significant for type 2 diabetes mellitus, controlled with oral hypoglycemics, and hypertension. On physical examination, Mr. Doe appeared visibly distressed, with labored breathing at rest, using accessory muscles. His blood pressure was noted to be 160/90 mmHg, with a heart rate of 98 beats per minute, respiratory rate of 26 breaths per minute, and oxygen saturation of 89% on room air. Bilateral pitting edema was…

Ambulance transport of the patient from physician's office to hospital emergency department, including advanced life support, level 2. What is the HCPCS code?