Which of the following formed elements will show a Maltese cross with polarizing microscopy?

Manually counting RBCs in a hemacytometer should be done in the boxes labeled____. image00560db5c14.jpg

Match which type of urine specimen would be most useful for the situation given.  You may use an answer once more than once or not at all.

In the lab, the specimen is Gram-stained and inoculated onto blood agar. Microscopic analysis of the slide reveals Gram-positive cocci arranged in grapelike clusters, while the blood agar produces round, creamy colonies with clear areas of hemolysis. Which of the following would be the most likely causative organism?

What is the predominant organism in vaginal normal flora?

What is the purpose of the polarizer (polarizing filter 1) in a polarized microscope?

Why does an Apt test require a bright red stool specimen?

Select the sperm with normal morphology. image00660d646da.jpg

Which of the following best describes an increase in urine production at night?

What will cause a false positive in fetal fibronectin (FFN) testing? Select all that apply.