Direct emissions are produced from residential and commercial activities in a variety of ways: 1  Combustion of natural gas and petroleum products for heating and cooking needs emits carbon dioxide (CO2), methane (CH4), and nitrous oxide (N2O).
Of red blood cell number. Classically this was the packed cell volume. blood was placed in a microtube and spun in a centrifuge. The rbcs settle to the bottom and one measures the height in the tube and reported as a percentage. Now determined by an automated machine. A typical hct is about 3 x the hemoglobin (hgb).
1 The CBC may also include reticulocyte count, which is a measurement of the absolute count or percentage of young red blood cells in blood. 2  The platelet count is the number of platelets in a person's sample of blood.  Mean platelet volume (MPV) may be reported with a CBC.