Consider the compound pentane, C3H12. Examine all of the places where a branched chain could occur. How many different ways could this chemical compound be built? How do you know?

Na+ loss through sweet plus the dilution has lowered na+ concentration outside of neurons, altering the na+ equilibrium potential. sodium exists more outside the cells than inside. when na+ is lost by sweat plus the dilution( because they drink a lot of water) changes the concentration outside the cell, forcing the water to enter the cell and attempt to balance the concentration inside/outside.the problem is that the abundance of water will cause the cells to swell. most cells can adapt, however, the brain cells can't that's why the runner has confusion and can't control the muscles.  if not treated and this occurs in less than 48 hours, it can be immediately fatal .

Amoxicillin - amoxicillin, doxycycline, and cefuroxime have all been shown to have equivalent efficacy for treatment of lyme disease. however, because this patient is only 6 years old, he should not be given doxycycline as a first line treatment unless the other regimens are contraindicated. macrolides, like azithromycin should not be used first line because they are poorly effective at eradicating infection. they may be used in patients who are intolerant of penicillins and cephalosporins and who cannot take doxycycline. first generation cephalosporins like cephalexin are not effective.