Which button must a user select to add a new bulletin to the board?

Which statement best describes the relative refractory state when the membrane has not fully returned to its resting state?

A) The same strength of a single stimulus can create a firing threshold. B) No amount of stimulus relative to the previous impulse will produce a firing threshold. C) Rapid repetition of the same strength stimulus will create a firing threshold. D) A larger stimulus than the previous stimulus can produce a firing threshold.

Which of the following conditions must be met for a pleural effusion to be deemed a transudate?

A) Absolute protein concentration must be elevated (typically >3 g/dL). B) It must be collected in a glass container with sodium ethylenediaminetetraacetic acid. C) Any of Light's criteria is met. D) None of Light's criteria is met.