Chelsea Therapeutics(CHTP_) shares closed Friday with a nice 61% pop, but at $3.88 per share, the stock still trades as if investors doubt the company’s chances of receiving a first-pass FDA approval for it low-blood pressure drug Northera. I watched and live-blogged all seven hours of Thursday’s FDA advisory panel at which outside experts voted to recommend Northera’s approval as a treatment for neurogenic orthostatic hypotension (NOH). From my view of the panel’s proceedings, here are five reasons why FDA will approve Northera -- and why Chelsea shares aren’t yet valuing the good news pending.