Final answer:
Hyperkalemia is the electrolyte disturbance that increases RMP. It can lead to a partial depolarization of the plasma membrane and an inability of cells to repolarize. This can have serious effects on the heart and other organs.
Step-by-step explanation:
The electrolyte disturbance that increases RMP (Resting Membrane Potential) is a) Hyperkalemia. Hyperkalemia is an elevated blood potassium level, which can impair the function of skeletal muscles, the nervous system, and the heart. It results in a partial depolarization of the plasma membrane, leading to an inability of cells to repolarize. This can cause the heart to seize and stop pumping blood, which can be fatal.