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HemeTestQA

TestQA

QuestionAnswer
Globin chains of normal hemoglobin – HbA - alpha2 beta 2
Lymphoid system is the precursor for – T B and NK
Secondary or Specific – Dawning of neutrophilia – appear first at - the myleocyte stage
Absolute/Relative study these and know how to figure them! – relative is percent absolute is multiplied out
Normal secquence of cell development – liver/spleen, thymus, medullary
In a wright stain a reticulocyte will have a blue appearance, this is refered to as – polychromatophilia or polychromatic
Term for earliest hematopoietic cells is – pluripotential stem cell
Struction of oxyhemoglobin is – R structure
Structure of a reticulocyte – non-nucleated with RNA
Elevation of Lymphocyte above 40 PERCENT – relative lyphocytosis
Perform Phagocytosis – Granulocytes, monocytes
In order for hemoglobin to combine reversibly with oxygen, iron must be in the - ferrous state
Granulocytes adhearing to the vascular endotheilium - marginateing pool (the rest are free circulating)
Hemoglobin types in Embryonic development – epsilon and zeta
Hemoglobin with higher affinity for O2, accounts for 50-85% of Hgb at birth – HbF
Name of the nucleated RBC just before it loses it’s nucleus is – metarubricyte
Reasons for Lab tests – establish or rule out diagnosis, confirm a Dr impression, screen for asymptomatic/unknown
The presence of nucleoli is associated with - immature cells
Hematopoiesis outside the bone marrow in times of excessive loss of blood – extramedullary
In adulthood the main site of hematopoiesis is in the – axial skeleton, flat bones, proximal long bones
Cellular structure that differentiates promyleocyte from myleocyte – presence of primary granules in promyleocyte and specific in myleocyte
Normal hemoglobin consists of - 2 alpha and 2 beta
protein that grabs it up in extravascular destruction Haptoglobin –
In a normal adult the spleen acts as a site for – removal of imperfect and aging cells
Primary granules first appear in – promyelocytes
polymorphnucleus, small pink red granules in cytoplasm Segmented neutrophils –
Dark blue /black granules in cytoplasm 0-1% leukocytes Basophil –
skyblue cytoplasm 25-35% of normal adult leukocytes and form E, C, U or S shaped nucleus Lyphocytes –
large orange/red granules, Eosinohil –
Complete blood count on a patient reveals the following: White count 28 what is the absolute lymphocyte count (lymph .15) – 4.2
The granulocytic mitotic pool contains – myleoblasts thru the myleocyte stage
Eosinophils primary function is – to protect the host from helmith parasites
Created by: BOMLT