A child is bitten on the arm by her sibling and the resultin…

A child is bitten on the arm by her sibling and the resulting wound grows a slender gram-negative bacilli that has the characteristics shown in this table:    test   result     growth on BAP   colonies that “pit” the agar     odor of colonies   like bleach     catalase   negative     oxidase   positive     TSI   no growth  The identification of this organism is:

You are performing a WBC estimate on 40x and come across a c…

You are performing a WBC estimate on 40x and come across a cell that looks like a possible nRBC you want to take a closer look at it on 100x.  You place the cell in the center of the field of view on 40x, and then rotate to the 100x (adding immersion oil).  Upon fine focus on 100x, the cell is still in the center of the field of view.  This concept is known as: