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Action potential: What would happen if the membrane potential of a neuron was -90mV instead of -70mv?

The Doppler sample volume (gait) should be kept _____ during a carotid duplex imagingexamination.

There are more voltage-gated potassium channels open at timepoint X than at timepoint Y.

 To obtain Doppler spectral waveforms the angle of insonation should be ≤60 degrees. The Doppler cursor should be  

DENDRITE: A dendrite conducts nerve impulses ______ the soma (cell body.)

The largest motor unit in the iliofibularis muscle was recruited when measuring both twitch tension (Pt) and tetanic tension (P0).

Timepoint X is within the cell’s absolute refractory period.

An engineer is conducting a test for the normal shockwave in the air. At a very high M1, the Mach number after the shockwave is calculated to be M2=0.385. Do you think this result is correct? 

What type of authority is given to an Agent by conduct of the Principal that reasonably leads a third party to believe the agent has authority? 

A 35-year-old man recently started sertraline for major depressive disorder. After one week, he tells you it “isn’t working” and asks to switch medications. What is the most appropriate nurse practitioner response?