Anemia Pharm Flashcards
treatment of iron deficiency anemia
-ferrous sulfate (oral)
-iron dextran (parenteral)
ferrous sulfate and iron dextran indications
-treat and prevent iron deficiency anemia
-treat blood loss
ferrous sulfate and iron dextran interactions
-decrease absorption with antacids
-increased absorption with vitamin C
ferrous sulfate and iron dextran adverse effects
-GI- nausea, heartburn, constipation
-metallic taste
-staining of teeth (oral)
-fatal iron toxicity (OD in children causing liver failure)
-leading cause of poisoning death in children
chelating agent
deferoxamine/desferal: drug given to treat iron toxicity
administration of oral iron
-best absorbed on empty stomach
-taking with food however decreases the gastric irritation many people have with oral iron
-do not give with antacids or calcium
-do not crush or chew
-liquid form: give with a straw and diluted in OJ to increase absorption
parenteral iron administration
-give test dose
-black box warning: have epi available for possible allergic reaction
-IM form- use 1.5 inch needle with z-track method to prevent skin staining
treatment of B12 deficiency
-injections of cyanocobalamin
-diet: meat, salmon and cod, milk and other dairy products, eggs
treatment of folate deficiency
-diet: increase consumption of leafy greens, legumes and organ meats
-multivitamin
-OTC folic acid supplements
cyanocobalamin indications
-low B12 levels- pernicious anemia; bariatric patients need 1 mg B12 daily indefinitely; surgeries where all parts of the stomach are removed
cyanocobalamin
-diet: increase meat, fish, eggs, milk
-oral- 1-2 mg daily
-injectable: IM weekly until levels are near normal, then monthly
-tolerated well- may have redness or pain at injection site
folic acid supplement indications
to treat folic acid deficiency anemia, in pregnant women to prevent neural tube defects
-diet: increase fortified grains, fresh fruits and veggies
erythropoiesis stimulating agent
epoetin alfa
epoetin alfa MOA
stimulates erythropoiesis; increases hgb and reticulocyte counts: only indicated when hgb is less than 10 g/dL UNLESS on dialysis
epoetin alfa route
IV and Subq
erythropoietin stimulating agents indication
treatment of anemia due to CKD, HIV patient on the drug zidovudine, people on chemo, autoimmune hemolytic anemia
erythropoietin stimulating agents monitoring
-blood tests weekly to monitor hgb with goal of less than 11 g/dL to decrease risk for clotting
-evaluate iron status before and during treatment-usually need iron supplementation
erythropoietin stimulating agents side effects
-HTN and serious CV events
-progression of certain cancers
-injection site problems, bone pain, headache
erythropoietin stimulating agents Nursing Implications
-do not give epogen that has been shaken or frozen
-protect from light
-do not dilute or mix with other drugs
-epogen is contraindicated in patients with uncontrolled HTN
-levels of Hgb typically begins to rise in about 2 weeks
-black box warning: in controlled trials patients experienced greater risks for death, serious adverse CV reactions, and stroke when administered ESAs to a target hemoglobin >11 g/dL