CPR training classes are being offered Feb. 26 at the Alta Sierra Country Club. Two classes are offered, one at 9 a.m., the next at 1 p.m. The class also includes instruction and certification in the use of an automated external defibrillator. Would you know what to do for a friend, family member or stranger in the case of cardian arrest? Roughly 88 percent of cardiac arrests happen at home, and without blood flow, brain damage begins in about four minutes. The approximate medical response time for Nevada County is four to eight minutes. CPR provided immediately after cardiac arrest …