<prompt> Hyponatremia has no effect on the RMP resting membrane potential becauseThe cell membrane is impermeable to NaECF Na concentration is highIntracellular K concentration is highEquilibrium potential for Na is 60 mV  <response>: Resting membrane potential depends on the concentration of potassium ion and not on sodium ion. REF TEXTBOOK OF MEDICAL PHYSIOLOGY GEETHA N 2 EDITION, 23 