You would like to test the denitrification capabilities of a…

You would like to test the denitrification capabilities of a novel bacteria dubbed “Finalis examinis”, so you perform the nitrate reduction test. You inoculate the bacteria in KNO3 broth and incubate it for 24 hours. You then add reagent A and B (sulfanilic acid + alpha-napthylamine) but see no visible color change in the broth. You then add Zinc dust and still do not observe any visible color changes. This means that the bacteria has:

Pepito is trying to isolate a very rare bacteria (Coronacati…

Pepito is trying to isolate a very rare bacteria (Coronacation indefinitus) for research purposes. The prevalence of the bacteria is roughly 1 in 10,000 bacteria. If Pepito performs a serial dilution, which test tubes in the dilution gradient are most likely to contain the bacteria of interest?

The nurse cares for a client diagnosed with myocardial infar…

The nurse cares for a client diagnosed with myocardial infarction (MI). The right atrial pressure (RAP/CVP) is 5 mm Hg, the pulmonary artery wedge  (PAWP) pressure is 20 mm Hg.  The client reports shorness of breath.  Oxygen saturation is 91% on room air and inspiratory crackles are auscultated bilaterally.  Blood pressure is 190/110 mm Hg.  Heart rate is 124.  Which does the nurse suspect?