What instrument is used to identify the tract of an anal fistula?

Demerol in 75 mg is prescribed for postoperative pain. The medication is available as 200 mg/mL. To administer the prescribed dose of 75 mg, the nurse would give ….mL

The decimal 0.25= 25% as a percent. 

The percent 1/2 % =1/50 as a fraction

The percent 2/5 % =1/40 as a fraction

15% of 90 is 15.

The percent 5% =1/20 as a fraction

The physician ordered 1.5 mg of an injectable liquid. The medication was available as 3.0 mg/mL. The nurse would give … mL.

During orthopedic procedures when the tourniquet is used, the surgeon many choose to wrap the limb with a sterile esmarch or ace bandage to ___.

What size drill bit would you load on the drill/AO attachment piece if the surgeon was placing a 3.5mm screw?