Which of the following refers to the range between the minimum and maximum radiation exposures needed to produce an acceptable range of densities for diagnostic purposes?

A ________ breast biopsy is taken when a larger biopsy needle is inserted into the mass and tissue is retrieved for histologic examination

a. fine needle aspiration b. core biopsy c. stereotactic breast biopsy d. excisional

pCO2 stands for ________

Fill in the blank with correct word.