Therefore, if you have an 800 square foot garage you actually need 8 square of shingles. Typically asphalt shingles are the least expensive to install at about $130 per square whereas a metal roof will have a longer warranty but will cost anywhere between $300 and $1,000 per square.
Blood transfusions are usually done in a hospital, an outpatient clinic or a doctor's office. A blood transfusion typically takes one to four hours, depending on which parts of the blood you receive and how much blood you need. You're usually seated or lying down for the procedure.
Donate whole blood every 56 days. Red blood cells are the oxygen carrying cells. They can take two weeks or longer to fully return to normal. Donate platelets (apheresis donation) as much as twice in a 7 day period - or up to 24 times in a rolling 12 months. Platelet and plasma components are replaced in the body more quickly than red cells.