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:

The following data are calculated on a series of 20 determin…

The following data are calculated on a series of 20 determinations of an albumin control: mean = 4.5 g/dL, 1 standard deviation = 0.28 g/dL.  If control limits are set at ±2 standard deviations, which of these ranges represents the allowable limits for the albumin control?

An anaerobically incubated blood agar plate shows colonies s…

An anaerobically incubated blood agar plate shows colonies surrounded by an inner zone of complete red cell lysis and an outer zone of incomplete cell lysis that gives a discolored appearance. Based on the information given, the presumptive identification of this isolate would be which of the following?

A 47-year old female presented to her provider with severe f…

A 47-year old female presented to her provider with severe fatigue. She has had a history of microscopic hematuria and oliguria, and in the past couple of weeks her symptoms have gotten worse. The provider ordered a complete UA, BUN, Creatinine, Serum IgA and an eGFR. The following results were obtained. Identify the most probable condition and the most significant results that led to the diagnosis.image015643987d8.jpg