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).
In this exercise, you will perform an endospore stain on Bacillus spp. a nonpathogenic, spore forming Gram positive rod. The instructor will provide a sample containing bacteria that have been grown under different conditions: bacteria grown for 4-8 hours, vegetative bacteria; bacteria grown for 24-48 hours, vegetative bacteria containing endospores and bacteria grown for 72 hours; mature free endospores.