17 Anti Anemics Flashcards

1
Q

What is anemia?

A

Dec RBC

Dec hemoglobin in blood

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2
Q

Iron is important for ____

A

delivery of oxygen

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3
Q

Free iron is ___, so is functionally coordinated to ___

A

toxic

heme within hemoglobin

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4
Q

Under normal conditions a reserve of iron is stored?

A

bound to Ferritin

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5
Q

Increased rate of erythrocyte destruction?

A

Hemolysis

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6
Q

What is deficiency anemia?

A

Iron
B12
Folic Acid

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7
Q

What is hemolytic anemia?

A

RBC lysis defect

Sickle cell

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8
Q

What drugs are used as oral iron therapy?

A

Ferrous sulfate
Ferrous gluconate
Ferrous fumarate

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9
Q

If a pregnant woman needs iron supplements, what is recommended?

A

Oral Iron therapy

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10
Q

How long should treatment with oral iron be?

A

3-6 months

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11
Q

What are the adverse effects of oral iron therapy?

A
Nausea
Heartburn
Epigastric discomfort
Abdominal cramps
Constipation
Diarrhea
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12
Q

What happens when oral iron therapy drugs interact with Antacids?

A

Inhibit absorption of ferrous compounds

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13
Q

What happens when oral iron therapy drugs interact with Ascorbic acid?

A

Increases the absorption of iron

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14
Q

What drug is given when OD on iron?

A

Deferoxamine

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15
Q

When do you use parenteral iron therapy?

A

Oral iron insufficient

Pregnant

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16
Q

When giving parenteral iron therapy, what do you need to monitor?

A

Dose dependent toxicity

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17
Q

What are adverse effects of parenteral iron therapy?

A
Acute hypersensitivity
Anaphylactic shock
Headache
Malaise
Fever
Back pain
Flushing
Bronchospasm
Nausea
Vomit
18
Q

What drugs are used for parenteral iron therapy?

A

Sodium ferric gluconate
Iron sucrose
Iron dextran

19
Q

What drug is preferred for parenteral iron therapy?

A

Iron sucrose

20
Q

Why is iron sucrose preferred for parenteral iron therapy?

A

Lower risk of anaphylactic reaction & better tolerated than iron dextran

21
Q

How is iron dextran administered?

22
Q

How is Iron dextran processed?

A

over several weeks

by macrophages to release iron from dextran complex

23
Q

What is the safest treatment for B12 deficiency?

24
Q

What drugs provide parenteral therapy for B12 deficiency?

A

Cyanocobalamin

Hydroxcobalamin

25
Adverse effects of this drug have been reported with IV route, so always give IM
Cyanocobalamin
26
What drug do I give a single dose for B12 deficiency?
Hydroxocobalamin
27
What is folic acid essential for?
Synthesis of Amino acids Purines DNA
28
Who will have inadequate levels of folic acid in diet?
Alcoholic | Pregnant
29
What does folate deficiency result in?
Megaloblastic Anemia Indistinguishable from B12 deficiency
30
How to distinguish the cause of anemia is not B12 deficiency?
Measure folate levels in serum & RBC
31
What drugs are used for antifolate cancer therapy?
Methotrexate Trimethoprim Pyrimethamine
32
What does a multivitamin containing folic acid reduce?
Fetal neural tube defects
33
What drug is effective to counter adverse effects of antifolate therapy in cancer?
Folinic acid
34
What is of value in the treatment of the anemia associated with renal failure?
Recombinant Erythropoietin
35
When giving erythropoietin what do you monitor?
Hemoglobin recovery
36
What is given to a pt with Thalessemia? Why?
Iron chelation therapy Deferoxamine Avoid end organ damage in heart, endocrine, liver
37
What drugs are used for sickle cell therapy?
Folate Hydroxyurea
38
What kind of supplement is folate?
Lifetime
39
What does hydroxyurea do?
reactivates production of fetal hemoglobin
40
What is the most effective treatment for sickle cell disease?
Bone Marrow transplant