Because red blood cells have a shelf life of only 42 days, a week’s supply of donated blood is ideal. Most banks have been making do throughout the pandemic with a three- to five-day supply.

The glomerular filtration rate (GFR) assesses the function of all nephrons, and the single-nephron GFR assesses ... Hypertension was defined as a blood pressure greater than 140/90 mm Hg or ...