A clean catch urine culture (inoculated with a 0.01 mL calibrated loop) grows 75 colonies of presumptive E. coli. What final colony count should be reported (CFU/mL)?

What is the pH indicator in the media we used to study WATER microbiology?

Calculate the MCHC for a patient with the following CBC:•       WBC     9.3 x109/L•       RBC       5.11 x1012/L•       HGB      9.6 g/dL•       HCT      31.4%•       PLT        351 x109/L

What enzyme is necessary for the bacteria to produce for Lipid Hydrolysis?  

A 79-year-old man had surgery to replace an arthritic joint with a prosthetic joint.After several weeks, he complained of low-grade fevers and pain in the joint. Fluid was aspirated from the knee and inoculated into both aerobic and anaerobic blood culture bottles. The anaerobic blood culture bottle turned positive at 48 hours with a gram-positive cocci. The aerobic bottle remained negative. The most likely identification of this isolate is:

Name the difference between Staph and Strep in regards to their ability to hemolyze red blood cells.

What is the purpose of the Durham tube you used in the water micro lab exercises?

Which component in a PCR reaction synthesizes new strands of complementary DNA?

Name the difference between Staph and Strep in regards to their capnophilic (or non) nature. 

When you see the reaction such as in the “Test” circle in your Rapid Staph test, how would you label this reaction?