Erythrocytes - Blood Lab 142

Plasma

before clotting

Serum

after clotting

Erythrocytes

red blood cells, carry O2

Platelets

begin blood clotting

Erythrocytes Female

4.5 million/ microliter

total volume 5 L

Erythrocytes Male

5.5 million/microliter

total volume 6 L

Erythrocytes appearance

Biconcave, Anucleated or Enucleated

Erythrocytes diameter

7 micrometer

Erythrocytes last

120 days

Erythrocytes carry

Oxygen and some CO2

Hematocrit =

ratio of volume of RBC/ total blood volume (includes plasma)

Hematocrit =

essentially draw blood (micro-tube or vacutainer), allow to clot, spin lightly in a centrifuge - RBC’s get packed to the bottom, serum on top

Hematocrit Males =

47%

Hematocrit Females =

42%

Hemoglobin Males

13 - 18 g/dl

Hemoglobin Females

12-16 g/dl

Platelets

150,000 - 400,000/per microliter

Platelets come from

Megakaryocytes

Platelets function

function in blood clotting

Platelets appearance

cell fragments, not cells ( tiny purple dots)