When the plasma concentration of potassium decreases to a dangerous level, the result is
a. kidney failure
b. extensive muscular weakness, followed by paralysis
c. decreased blood-clotting capability
d. the cessation of enzyme activity in the cells

B. Extensive muscular weakness, followed by paralysis

Explanation:

Low plasmatic concentrations of potassium have a large effect on all muscular cells since this ion is involved in maintaining a electric potential difference between the interior and the exterior of the cell.

The electric potential difference is a key piece of muscular contraction. Therefore, when some point of this mechanism is affected, like in this case, by lower concentrations of potassium, there is muscular weakness that can end up in paralysis.

answer:

a licensed practical nurse (lpn), in much of the united states and canada, is a nurse who cares for people who are sick, injured, convalescent, or disabled. in the united states, lpns work under the direction of physicians.

explanation: