HEMA Flashcards

1
Q

Most common anemia

A

Hypoproliferative

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2
Q

Normocytic and Normochromic RBC with inappropriately low retic response( <2 -2.5)

A

Hypoproliferative anemia

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3
Q

Most common Hypoproliferative anemia

A

early IDA

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4
Q

Mechanism Of Hypo proliferative anemia

A
  1. Abnormal iron metabolism: IDA, anemia of inflammation

2. Suboptimal erythropoietin response to anemia: renal disease, inflammation, cancer, hypometabolic states

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5
Q

Determines the turnover ra+e of transferrin iron

A

Plasma iron level and the activity of the erythroid marrow

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6
Q

Conditions associated with decreased clearance time of transferrin iron
(inc clearance /fast turnover)

A

Increased erythropoieSis

IDA

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7
Q

Average RBC lifespan

A

120 days

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8
Q

One ml Of RBC is equal to how many mg of Iron

A

One

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9
Q

Amount Of iron needed to replace the RBC lost through senescence

A

20 mg/ day

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10
Q

For pregnant women on their last- two trimesters, how much iron is required per day

A

increased to 5-6 mg /d

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11
Q

Primary location for iron absorption

A

proximal small intestine

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12
Q

principal iron regulator hormone

A

HepCidin

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13
Q

Increased iron absorption despite normal or inc iren stores with associated inappropriately Low hepcidin

A

Erythroid hyperplasia

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14
Q

Indicators Of decreased iron stores

A

Decreased Serum Ferritin

Decreased stainable iron on bone marrow aspirations

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15
Q

Represents the amount Of Circulating iron bound to transferrin

A

Serum iron ( NV: 50 to 150)

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16
Q

Indirect measure of circulating transferrin

A

TIBC (NV: 300 to 360)

17
Q

TSAT in iron deficiency States

A

<18%

18
Q

Test to estimate iron stores

A

Serum Ferritin level

19
Q

Most common causes Of increased Red cell protoporphyrin levels

A

IDA, lead poisoning

20
Q

Reflects the total erythroid mass and can distinguish between IDA and anemia of inflammation

A

transferrin Receptor protein

21
Q

In absolute IDA TRP is

A

Elevated

22
Q

Conditions that present with hypochromic microcystic anemia

A

Thalassemias
Anemia of inflammation with inadequate iron supply to the erythroid marrow
MDS

23
Q

Max dose of elemental iron per day

A

200

24
Q

Inhibits iron absorption and release from storage sites

A

Hepcidin

25
Q

Known as Unpaired globin precipitates to form inclusions that damage the cell

A

Heinz bodies

26
Q

When is reticulOcyte count expected to increase after iron therapy

A

4-7 dayswith peak rise 1-1.5 weeks

27
Q

Most prominent SE of iron therapy

A

GI distress in 15-20% of Pxs

28
Q

Categories in Hypoproliferative anemias with inadequate endogenous EPO production for the degree of anemia observed

A

l. Chronic inflammation/ infection
2. Renal disease
3. Endo and nutritional deficiencies

29
Q

Goals for the tx of anemia

A

NO intervention until hgb <8(if wo serious underlying CV/ Pulmo disease
> 11g/dl if with physiologic compromise

30
Q

AE Of Epo administration in cancer patients

A

Increased risk of thromboembolic complications and tumor progression

31
Q

Mutation in the Beta- globin gene due to change of 6th aminoacid from glutamic acid to valine

A

sickle cell