Hematology terms

llbgurl's version from 2015-09-30 14:03


Question Answer
a stem cell from embryonic mesenchyme; capable of developing into any type of blood cellhemocytoblast
hemoglobin, RBC's and MCV - mean corpuscular volumeDIRECTLY measured and MORE accurate
hematocrit, MCH, MCHCderived values and LESS accurate
MCVmean corpuscular volume
MCVsize of RBC - more reliable
must always been interpreted with peripheral blood smear, RDW and retic countMCV
RDWred cell distribution width
MCHmean cell hemoglobin - less reliable
MCHmass of RBC
lower limit of normal child older than 6 months: 70 fl plus childs age in yearsNormal MCV circulation
oxygen carrying component of RBChemoglobin
actual number of circulating RBCs per cells per cmRBC
an immature red blood cell without a nucleusreticulocyte having a granular or reticulated appearance when suitably stained.
Normocytic normocyte size rbc
Microcyticlow MCV size of rbc
Macrocytic high MCV size of rbc
MCHCmean corpuscular hemoglobin concentration (less reliable) concentration of Hgb per cell
MCHC with anemiaexpected to be low bc underhemoglobinized like iron deficiency anemia
reticulocyte count x Hgb / normal Hgb for agecorrected reticulocyte count
retic count >2%bone marrow producing RBCs at an acclerated rate
low retic countmust consider hypoplastic or aplastic anemias
underformation, inadequate number of cellshypoplastic
wihtout, not enough cells madeaplastic
most common RBC, delivers 02 to tissueserythrocyte
WBC, secretory cells of eosinophils or basophilsgranulocytes
mononuclear leukocytes, WBC, absent granuales in cytoplasm and how to tell differenceagranulocytes
WBC, colorless, circulates in blood stream to counter act foreign substances and diseaseleukocyte
inflammatory cell, contains heparin to prevent clottingbasophil
wbc, combats parasites, infectionseosinophil
most abudent wbc, immune responceneutrophil
platelets and clotting thrombocytes

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