If a stool sample contains only degraded hemoglobin, would this produce a false positive or a false negative result on a guaiac-based fecal occult blood test (gFOBT)?

If the initial sample of the seminal fluid is not collected, how does this affect the results? Select all that apply.

What analyte is specific to seminal fluid?

Why can’t fecal occult blood cards used for gastric fluid occult blood testing?

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?