Question about capillary blood glucose testing

Hi,

My patient had wrist surgery, ace wrap with splint right arm, IV left hand. Only thumb visible on operative right side. Thumb was cool and difficult to extract blood from.

Is it permissible to check blood sugar from alternative site, such as an earlobe?

What about labs? If they were needed, would I have to get some resident to do a femoral stick?

I work in outpatient surgery, so we don't come across this scenerio too often, as patients are discharged soon after admission if they are stable and pain is under control. I ended up transferring this lady to med- surg bed as she had intractable postop nausea and vomiting despite 3 different antiemetics and IV fluid boluses.