Is it safe to take triptans for migraine abortion if bp is 150/105? how much bp elevation is typically seen after administration of triptans? can stroke occur at an elevated level but less than 180/120 bp? is sys. high more concerning than dia. high?

A "stroke" can occur at any time, as a "BP determination" is a single value at a single time, which can change due to situational stress. If you are hypertensive as indicated, see an internal medicine physician for an exam and treatment for the hypertension.

Agree with Dr Berryman, as the key danger to you is hypertension (the "silent killer"). See your doctor and get this under control. You may want to see a neurologist to start a preventative headache program, which may allow avoidance of triptans. Yes, there is always a stroke risk with elevated blood pressure.