Week 12: Hematologic Flashcards
Prototype Hematologic (Anti-anemia and Anticoagulation) Drugs
- Ferrous sulfate (Feosol)
- Vitamin B12 (Cyanocobalamin)
- Folic Acid (Folvite)
- Erythropoietin (Epogen)
- Heparin
- Enoxaparin (Lovenox)
- Protamine Sulfate
- Warfarin (Coumadin)
- Vitamin K (AquaMephyton)
- TPA (Alteplase)
- Aminocaproic Acid (Amicar)
- Transexamic Acid (Lysteda)
- Filgrastim (Neupogen)
What varies between iron supplements
the amount of elemental iron found in the salt
ex: Ferrous sulfate has more iron than Ferrous gluconate
Anemia
A SYMPTOM of an underlying problem
Not a diagnosis by itself usually
The most common anemia …
iron deficiency anemia
Prototype Iron Replacement Drug
ferrous sulfate (Feosol)
Ferrous Sulfate (Feosol)
Class: Iron Replacement
Most common med for increasing Fe stores in people
Action of Ferrous Sulfate
Replace iron in the body whihc is then used in normal fxning- ESP. in aiding O2 carrying capacity of RBC
What route is Ferrous Sulfate usually given
Oral
However it can be given parenterally for those who cannot absorb it thorugh the GI tract
What is interesting about the absorption of ferrous sulfate/iron
If body stores of iron are high already less iron absorption will occur. but when the stores are too low it will absorb more easily
___% of ferrous sulfate is absorbed when body stores are low while ___% is absorbed if the stores are high
15%; 2-3%
What are some things that may increase iron absorption
Vitamin C!!!
Orange Juice (Uncertain)
Low Body Stores of Iron
What is interesting about the Metabolism of Ferrous sulfate/iron
Iron is used in the body and is broken down and usually reutilized or stored
VERY LITTLE IS EXCRETED DAY TO DAY d/t ITS IMPORTANCE
Most health people do not lose a lot and do not need much more daily
4 People at risk for Iron Loss/Iron Deficiency Anemia
- Menstruating Women
- Periods when the body is growing - Puberty and INfancy
- GI BLeeding
- Pregnant women
If a patient is found to be anemic one of the first thing that is checked is…
whether there is small or large bleeding occurring in the GI tract and if its iron deficiency anemia
ADRs of Ferrous Sulfate
- Constipation AND Diarrhea
- GI Effects (when taken orally)
Other: HA, Anorexia, Gastric Pain, NV
What is important to know about ferous sulfate therapy following dips in body iron stores
If there is small dips in iron stores there should be improvement within 2-3 weeks
However if there is severe iron loss and anemia (Empty ferratin stores) it could take almost a year to get iron levels back to normal
How often is the dosage of ferrous sulfate usually taken
1 time a day at 325 mg (sometimes 2 but it increases ADRs)
What is important about the stool of someone on ferrous sulfate
Stools will be black (or green) in color and can appear as though is it blood/old blood
It is not, that is staining that occurs
What is an important consideration about solution/liquid iron
Give it through a straw since it can cause staining
Always keep tablet ferrous sulfate…
AWAY FROM CHILDREN - high doses can be lethal
Never take ___ with iron. Why?
Antacids; They will bind oto the iron and carry it out of the body without any of the iron being absorbed
How does the elemental iron content differ between preparations of: Ferrous Sulfate, Ferrous Gluconate, and Dried Ferrous Sulfate
Ferrous Sulfate - 20% elemental iron (ex: 100 mg pill is 20 mg iron)
Ferrous Gluconate - 12%
Dried Ferrous Sulfate - 30%
When is the best time to take your iron supplement
on an empty stomach
*however this can cause NV so someitmes for the first week you take with food then take without after that
Some people cannot take oral iron due to malabsorption syndromes or issues from age, so they may need it IV or IM. What 2 important things need to be kept in mind regarding this route?
- Proper Z Track is needed to prevent skin staining
- High risk/rate of anaphylaxis when given IV so they must be monitored