The Packed Cell Volume (PCV) Test 1. Objective: This is one of the oldest tests done in medical practice. The objective of this test was to determine the percentage of red blood cells (RBCs) in whole blood. It also helped to assess the blood’s capacity to carry oxygen. ________________________________________ 2. Principle: The test was based on the principle that when blood was centrifuged, the red blood cells settled at the bottom of the tube, forming a packed column. The ratio of the packed RBC column to the total blood column gave the packed cell volume (PCV), expressed as a percentage. ________________________________________ 3. Materials: • Microhematocrit capillary tubes • Microhematocrit centrifuge • Plasticine or sealing clay • Microhematocrit reader • Lancet • Alcohol swab • Cotton ________________________________________ 4. Procedure (Microhematocrit Method): 1. The fingertip was cleaned with an alcohol swab and pricked with a sterile lancet. 2. Blood was collected into ...
PROVEN REMEDIES TO HELP YOU GET RID OF ACNE AND PIMPLES A majority of us have either battled with or are currently battling with acne. According to the college of medicine, at the University of Ibadan, more than 1.5 million cases per year are recorded in Nigeria. Picture of a lady suffering from acne Women are always looking for the best way to get rid of pimples and acne. It's not easy to have to cover up your face with makeup every day. Some women like to make their natural remedies to deal with this problem. Hey, going through puberty is a tough time. Pimples are what most teens face in their adolescence. Do you want to know how to clear pimples without scarring? This article is just for you. Acne occurs when the pores of your skin become blocked with oil, dead skin, or bacteria. Each pore of your skin opens to a follicle. The follicle is made up of hair and a sebaceous (oil) gland. The oil gland releases sebum (oil), which travels up the hair, out of the pore, and onto your ski...
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