Module 5 Flashcards

1
Q

An RBC abnormality wherein the RBC is described as having a finger-like or quartz like crystal of dense hemoglobin protruding from the RBC membrane

A

Hemoglobin SC Crystal

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2
Q

These are RBC inclusions primarily composed of iron which appear as an irregular cluster of small, light to dark blue granules, often near the periphery of the cells when using a wrights stain smear

A

Appenheimer bodies

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3
Q

Hexagonal crystals of dense hemoglobin formed within RBC membrane

A

Hemoglobin C crystal

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4
Q

RBC inclusions primarily composed of precipitated RNA which appear as dark blue purple fine or coarse punctate granules distributed throughout cytoplasm when using a supravital stain

A

Basophilic stippling

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5
Q

During RBC destruction via extravascular hemolysis, hemoglobin from the RBC will be degraded into heme ang globin portion, it removes the iron from heme

A

Heme oxygenase

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6
Q

During extravascular catabolism of RBC, iron removed from the heme group of hemoglobin will be transported to bone marrow for recycling to be used by developing RBC by

A

Transferrin

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7
Q

During intravascular catabolism of RBC, unbound hemoglobin that were not reabsorbed in the tubular cells will

A

Not be excreted in the urine and converted to oxidizied methemoglobin

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8
Q

Intravascular catabolism of RBC, the heme group from methemoglobin will be released in the circulation and be taken up by the transport protein known as

A

Hemopoxin

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9
Q

Intravascular catabolism of RBC, an excess heme group not eliminated by LRP- CD91 will combine to — forming —- until hemopexin is available for binding

A

Albumin and methealbumin

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10
Q

In oxygen - hemoglobin dissociation curve, when there is a decreased concentration of carbon monoxide, there is also a decrease in 2-3 DPG, leading to

A

Increase in Oxygen Affinity

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11
Q

During intravascular catabolism of RBC, hemoglobin released from RBC will be transported to liver for catabolism by

A

Haptoglobin

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12
Q

During RBC destruction via extravascular hemolysis, hemoglobin from RBC will be degraded into heme and globin portion, the protoporphyrim ring from the heme portion will be open forming the

A

Intermediate Biliverdin

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13
Q

During RBC destruction via extravascular hemolysis, hemoglobin from RBC will be degraded into heme and globin portion, the intermediate biliverdin from protoporphyrin ring of the heme portion will be converted to unconjugated bilirubin by

A

Biliverdin Reductase

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14
Q

These are RBCs with a single pointed extension resembling a teardrop or pear

A

Dacrocyte

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15
Q

Unconjugated bilirubin from thr portal circulation will be transported by albumin going to the liver and be converted into conjugates bilirubin by

A

Uridine Diphosphate Glucoronyl Transferase

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16
Q

Fragmented RBCs caused by the rupture in the peripheral circulation

A

Schistocyte

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17
Q

Metabolic shunt generates 2,3 BPG/ 2,3 DPG

A

Rapoport Luebering Pathway

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18
Q

Hemoglobin iron may become oxidized to Fe by several pathologic mechanisms. What portion of the Embden - Meyerhof pathway reduces iron to fe

A

Methemoglobin Reductase Pathway

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19
Q

What hexose monophosphate shunt products participate in the detoxification of peroxides

A

NADPH & Reduced Glutathione

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20
Q

Pathway aerobically generates energy in the form of ATP

A

Embden Meyerhof Pathway

21
Q

Well defined hof and a cart wheel like pattern of chromatin are characteristics of

A

Plasma cells

22
Q

Auer rods may be seen in

A

Acute Promyelocyctic Leukemia and Acute Myelomonocyctic Leukemia

23
Q

Hereditary autosomal dominant condition involves failure of the normal segmentation of the granulocyte nuclei

A

Pegler huet

24
Q

Found in the primary granules of neutrophils

A

Myeloperoxidase

25
Q

Charcot leyden crystals in secretions can be seen when there is an increase in

A

Eosinophil

26
Q

Likely associated with glucocerebroside deficiency

A

Gauchers disease

27
Q

Neutrophol metamyelocyte may be best distinguished from neutrophil bands by which criteria

A

Shape of nucleus

28
Q

Band cells are

A

Sausage shaped nucleus

29
Q

Lipidoses like Gauchers disease involve the

A

Monocyte

30
Q

Not a component of Basophil granules

A

Histaminase

31
Q

Associated with chediak higashi syndrome except

A

Inclusions are made of ribosomes

32
Q

How many percent of neutrophils in the marginating pool

A

50%

33
Q

Alder reilly anonaly is an abnormality of

A

Mucopolysaccharide metabolism

34
Q

Plasma cell with red to pink cytoplasm is known as

A

Flame cell

35
Q

These cells lack the characteristics of mature T and B cells. They participate in antibody dependent cell mediated cytolysis

A

Null cell

36
Q

Foam cell is seen in

A

Niemann pick disease

37
Q

Variant lf lymphocyte is seen with the fried egg appearance

A

Type II

38
Q

Life span of basophils in the blood

A

60 hrs

39
Q

Major cytokine responsible for mast cell maturation

A

Kit Ligand

40
Q

CD T Cells are also known as cytotoxic T cells, they recognize anyigen presented along with MHC class II molecules

A

First is true second isfalse

41
Q

Responsible for maturation of T lymphocytes and regulatoon of their expression of CD 4 and CD8

A

Thymus

42
Q

Morphologic changes occur during normal blood cell maturation

A

Condensation of nuclear chromatin

43
Q

Product of common lymphoid progenitor cell

A

B & T lymphocytes

44
Q

Bone resorbing cells

A

Osteoclasts

45
Q

Hematopoietic stem cells produce all lineages of blood cells in sufficient quantities over the lifetime of an individual due to

A

Are present in large numbers in the bone marrow niches

46
Q

Organs in hematopoiesis

A

Liver, spleen, thymus, bone marrow

47
Q

Thrombopoietin is referred as

A

MPL Ligand

48
Q

Primary source of IL 2 are

A

CD4+ T cells, Natural Killer Cells and B cells