Patient is receiving insulin BID and has blood glucose monit…

Patient is receiving insulin BID and has blood glucose monitoring Q AC and HS.  The insulin orders are:  NPH insulin 12 units with Regular insulin 5 units SQ at 8 AM daily  NPH insulin 10 units with Regular insulin 3 units SQ at 6 PM daily  In addition to above administer sliding scale coverage with regular insulin SQ before meals:  60-150 mg.0 units  151-250 mg.2 units  251-400 mg. 4 units  >  401 mg. call MD  At 0745 am, the blood glucose for this patient is 135 mg/dl.  How much total Regular insulin will you be giving your patient at breakfast? _______ units