A 63 year-old man is dehydrated after three days of alcohol abuse. His serum sod

Question

A 63 year-old man is dehydrated after three days of alcohol abuse. His serum sodium level has increased from a normal value of 140 mEq/L to 147 mEq/L. The resting membrane potential of a typical neuron was ?80mV before dehydration. What is the most likely resting membrane potential of a typical neuron after the dehydration, assuming no change in resting sodium conductance? A.?72 mV B.?74 mV C.?80 mV D.?88 mV E.?98 mV A 63 year-old man is dehydrated after three days of alcohol abuse. His serum sodium level has increased from a normal value of 140 mEq/L to 147 mEq/L. The resting membrane potential of a typical neuron was ?80mV before dehydration. What is the most likely resting membrane potential of a typical neuron after the dehydration, assuming no change in resting sodium conductance? A.?72 mV B.?74 mV C.?80 mV D.?88 mV E.?98 mV

Explanation / Answer

E.?98 mV

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