The patient is receiving insulin lispro for hyperglycemia per the following sliding scale. Prior to lunch, the patient's blood glucose (BG) is 297 mg/dL. How many units of insulin lispro will the patient receive via sliding scale? Do not provide the unit of measurement. Only provide the number. Insulin Dose BG Reading O units <160 mg/dL 2 units 160-220 mg/dL 4 units 221-280 mg/dL 6 units 281-340 mg/dL 8 units 341-400 mg/dL