How many grams of hydrocortisone 2.5% must be mixed with hydrocortisone 1% to prepare 30 gm of hydrocortisone 1.5% ointment?

Local infiltration anesthesia works by blocking nerves and is injected directly into an area that is:

A) cooling B) infected C) swollen D) painful

A frontal, or ________, plane divides the body into anterior and posterior portions. 

Fill in the blank(s) with the appropriate word(s).