A brain natriuretic peptide (BNP) test measures the amount of the BNP hormone in your blood. BNP is made by your heart and shows how well your heart is working.Normally, only a low amount of BNP is found in your blood.uide. A brain natriuretic peptide (BNP) test measures the amount of the BNP hormone in your blood. BNP is made by your heart and shows how well your heart is working. Normally, only a low amount of BNP is found in your blood.
Bacterial cultures can be preserved for long by suspending in glycerol broth and storing at -20 to -70 degree Celsius. The protocol as below: To 0.85 ml of bacterial culture, add 0.15 ml of sterile glycerol (sterilized by autoclave, final glycerol concentration : 15%, v/v).
The Staphylococcus bacteria, or Staph, can survive for as little as a few hours to as long as many months! Hard surfaces that are cleaned are less likely to harbor bacteria, but porous surfaces like towels and sponges are perfect breeding grounds for bacteria. Humidity is also a factor, if it's lower then 10% then bacteria will not be able to survive on a dry surface for long. It's important to keep areas clean because any kind of nutrient (food crumbs, skin cells, droplets from a sneeze) helps them live. Wednesday, February 01 2012.