Anemia meds Flashcards

1
Q

What types of medications can we use for Anemia treatment?

A

Erythropoiesis Stimulating Agents and Vitamins and Minerals

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2
Q

What med is an erythropoiesis stimulating agent?

A

Epoetin alfa (Epogen and Procrit)

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3
Q

What Vitamins and Minerals do we use for anemia?

A

Iron (Ferrous sulfate), Vitamin B12, and Folic Acid

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4
Q

MOA of epoetin alfa

A

Mimics the human erythropoietin to stimulate RBC production

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5
Q

Epoetin is approved to maintain RBC for who?

A

Chronic kidney failure pt, HIV infections on drug therapy, Anemia second to chemotherapy in certain cancers, and pre-operative patients with anemia

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6
Q

Where does RBC production occur?

A

Red bone marrow - common in iliac crest

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7
Q

At what point of production does Epoetin alfa affect?

A

Colony-forming unit-erythroid cells and Proerythroblasts

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8
Q

Formation of a RBC

A

Pluripotent stem cell –> BFU-E –> CFU-E –> Proerythroblasts –> Erythroblasts –> Reticulocytes –> RBC

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9
Q

Problems with Epoetin alfa

A

Chronic kidney disease - increased mortality and serious cardiovascular events
Cancer - increased mortality and tumor progression
Surgery Patients - increased thromboembolic events and mortality.

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10
Q

When do you stop epoetin alfa or not start?

A

If Hgb is greater than 10

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11
Q

Nursing implications for epoetin alfa

A

Monitor BP before and during therapy, monitor Hgb levels - stop if above 10

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12
Q

Dietary iron

A

Found in two forms - heme and non-heme iron

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13
Q

Heme-iron

A

Found in meat, poultry and fish. Where we get about 40% of our iron

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14
Q

Non-heme iron

A

Animal tissue, fruits, vegetables, grains, nuts
Not absorbed as well as heme-iron

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15
Q

Iron rich vegetables

A

Collard greens, bok choy, tomatoes, green beans, brussels sprouts, broccoli, kale, and spinach

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16
Q

Iron Therapy med

A

Ferrous sulfat

17
Q

Ferrous Sulfate MOA

A

Taken up by bone marrow cells to make Hgb

18
Q

AE of ferrous sulfate

A

GI disturbances, teeth staining with liquid form, tarry stools

19
Q

Dosage issues of iron therapy

A

Ferrous sulfate only contains 20% elemental iron by weight (elemental is 100% absorbed)

20
Q

Interactions with iron therapy

A

Antacids reduce absorption, food helps to prevent GI SE but it also decreases absorption by 50-70%

21
Q

Signs of toxicity with iron therapy

A

Stomach pain, N/V/D

22
Q

Parenteral Iron Therapy med

A

Iron Dextran

23
Q

Indication for Iron Dextran

A

Clear diagnosis of iron deficiency, oral iron is intolerable or ineffective

24
Q

AE of iron dextran

A

potentially fatal anaphylaxis

25
Safety implications for iron dextran (parenteral iron)
Only use when you absolutely have to, keep epinephrine and CPR equipment available, do a small test dose and monitor for five minutes before full administration, monitor for 15 minutes after administration
26
Disadvantages of Iron Dextran IM
Persistent pain, discoloration, tumors, risk of anaphylaxis
27
Why is it important to use the Z track method with Iron Dextran?
To reduce the discoloration. Iron can leak from the muscle into the tissue and cause discoloration.
28
Vitamin B12 med
Cyanocobalamin
29
Route for B12
Oral
30
AE of B12 (Cyanocobalamin)
Hypokalemia
31
Why are we cautious when we use B12 and folic acid together?
Folic acid corrects the anemia through stimulating RBC production, but can mask the B12 deficiency
32
Folic Acid MOA
Converts the active form of folic acid after administration
33
Indications for Folic Acid
Treatment of folic acid deficiency anemia, prophylaxis of folate deficiency, initial treatment of severe anemia from B12 deficiency
34
AE of folic acid
none