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37 Cards in this Set

  • Front
  • Back
Adequate blood cell production and development are defined as ____________
Immune system function is defined as _______--
Efforts to enhance a persons own body systems to fight disease include the development of drugs to stimulate ___________ and immune function.
Drugs that stimulate immune function are called ________, biologic response modifiers, and immunomodulators.
Antiviral drugs are more accurately called ________________ because they help a compromised immune system regain normal function rather than stimulating "supranormal" function.
A suspension of weaked Mycobacterium bovis long used as an immunizing agent against tuberculosis.
Bacillus Calmette - Guerin vaccine
A recombinant DNA version of interleukin 2 (IL-2); activates cellular immunity; produces tumor necrosis factor, interleukin -1 (IL-1) and interferon gamma; and inhibits tumor growth.
Aldesleukin (Proleukin)
Approved for treatment of chronic hepatitis C, a condition that can lead to liver failure and liver cancer
Interferon alfa -n1 and alfacon -1
Drug formulations of erythropoietin, a hormone from the kidney that stimulates bone marrow production of red blood cells.
Darbepoetin alfa (aranesp) and epoetin alfa (Epogen, Procrit)
Recombinant IL- 11, which stimulates platelet production; used to prevent thrombocytopenia and to reduce the need for platelet transfusions in patients with cancer who are receiving myelosuppressive chemotherapy.
Oprevekin (Neumega)
Exogenous drug preparations have the same mechanisms of action as the endogenous products. Describe the mechanism of action.
Exogenous drug preparations have the same mechanisms of action as the endogenous products. CSF binds to receptors on the cell surfaces of immature blood cells in the bone marrow and increases the number, maturity, and functional ability of the cells. Interferons called alfa, beta, or gamma according to specific characteristics also bind to specific cell surface receptors and alter intracellular activities. In viral infections they induce enzymes that inhibit protein synthesis and degrade viral ribonucleic acid. As a result, viruses are less able to enter uninfected cells reproduce and release new viruses.
Describe the antiproliferative and immunoregulatory activities of interferons.
In addition to their antiviral effects interferons also have antiproliferative and immunoregulatory activities. They can increase expression of the major histocompatibility complex (MHC) molecules; augment the activity of natural killer (NK) cells; increase the effectiveness of antigen presenting cells in inducing the proliferation of cytotoxic T cells to target cells; and inhibit angiogenesis (formation of blood vessels). Because of these characteristics, the interferons are used mainly to treat viral infections cancers.
Why are exogenous cytokines given only by a subcutanious (Sub - Q) or intravenous (IV) injection?
Exogenous cytokines are given by subcutanous (Sub - Q) or intravenous (IV) injection because they are proteins that would be destroyed by digestive enzymes if given orally.
What is the function of erythropoietin in the human body?
Erythropoietin is a hormone from the kidney that stimulates the bone marrow production of read blood cells.
How do antiviral drugs improve the health of clients with the diagnosis of AIDS?
In AIDS the human immunodeficiency virus (HIV) causes severe immune system dysfunction, so the antiviral drugs indirectly improve immunologic function.
How does epoetin alfa work? How long will the patient have to take it?
Epoetin alfa is a drug formulation of a hormone erythropoiesis, from the kidneys that stimulates bone marrow production of red blood cells. Erythropoiesis stimulating drugs have been used to raise the hemoglobin level and reduce the need for blood transfusions in many patients with anemia. Epoetin is prescribed a the lowest dose that is effective in raising hemoglobin levels just enough to avoid the need for blood transfusion. The hemoglobin levels must be regularly monitored until the stabilize.
Mrs. Cantons last hemoglobin level was 14grams per deciliter (g/dL). What might this indicate?
Studies indicated an increased risk of serious cardiovascular problems (ex hypertension, thromboembolic events) and death in patients with chronic renal failure and an increased risk of tumor progression and death in patients with cancer. These problems became evident with the drugs were used to achieve normal hemoglobin levels of 12 to 14 grams per deciliter. A black box warning for this drug advises prescribers to avoid using Epogen in patients with hemoglobin values of 12g/dL or greater.
Filgrastim and some interferons are conjugated with polyethylene glycol, in a process called ___________, to prolong drug actions.
Mr. Adler prescribed interferon. Which of the following is his diagnosis?

a. Hypertension

b. Viral hepatitis

c. Sepsis

d. Bacteremia

Rationale: Interferons are used mainly for viral hepatitis and certain types of cancer.
Mr. Smith is diagnosed with severe neutropenia. The physician prescribes filgrastim. Which of the following is the desired effect?

a. To increase white blood cells

b. To increase red blood cells

c. To increase electrolytes

d. To decrease leukocytes.

Rationale: Filgrastim is used to increase white blood cells and decrease risks of infection in in patients who have or are at high risk for severe neutropenia.
Adverse effects of epoetin and darbepoetin include in creased risks of which of the following conditions?

a. Hyperlipidemia

b. Diabetes mellitus type 2

c. Myocardial infraction

d. Cirrhosis of the liver.

Rationale: Adverse effects of epoetin and darbepoetin include increased risks of hypertension, myocardial infraction, and stroke, especially when used to increase hemoglobin above 12dL.
Mr. Caisse receiving anticancer drug therapy that damaged his bone marrow. Which of the following medicaitons would you expect his physician to order?

a. Oprelvekin

b. Epoetin

c. Bacillus Calmette - Guerin vaccine

d. Simvastatin

Rationale: A drug formulation of erythropoietin is given to increase red blood cells in patients with anemia associated with chronic renal failure or bone marrow damage due to anticancer drug therapy.
Mr. Bartholomew is self administering epoetin in the home. You encourage him to include which of the following supplements as part of his daily medication regimen?

a. Iron

b. Vitamin C

c. Vitamin A

d. Folic acid

Rationale: Epoetin is not effective unless sufficient iron is present, and most patients need an iron supplement. When an iron preparation is prescribed the home care nurse may need to emphasize the importance of taking it.
You are caring for Ms. Smith in the home. She is prescribed filgrastim. Which of the following would be included in your education plan?

a. Dietary restrictions

b. Exercise restrictions

c. Fall prevention

d. Techniques to reduce exposure infection.

Rationale: With filgrastim, the nurse may need to help the patient and family with techniques to reduce exposure to infection.
Mr. brown is prescribed sargramostim. He is diagnosed with liver impairment. Which of the following would you expect the physician to do?

a. Monitor LFTs every 2 weeks.

b. Monitor BUN and creatinine every week.

c. Monitor CBC every other day

d. Monitor electrolytes weekly

Rationale: With preexisting hepatic impairment, sargramostim increase serum bilirubin and liver enzymes. Values decline to baseline levels when the drug is stopped or its dosage is reduced. Liver function tests are recommended every 2wks for clients with preexisting impairment.
Mr. Cheshire is diagnosed with hepatitis B. The physician orders interferon alfa. Mr. Cheshire is at risk of developing which of the following?

a. Drug tolerance

b. Chronic flank pain

c. Drug resistance

d. Subclinical hepatitis B

Rationale: Hepatitis B become chronic in 5 to 10% of patients. Interferon alfa and lamivudine or other antiviral drugs may be used for treatment. Drug resistance may develop, and active hepatitis may resume when the drugs are discontinued.
Because _______ can be given once per week and maintains constant blood levels it has largely replaced other interferons for both monotherapy and combination therapy for hepatitis C.
Before receiving a bone marrow transplant the patient immune system is ___________ by anticancer drugs or irradiation.
Mr. Edward is diagnosed with superficial bladder cancer. They physician orders bacillus calmette gurerin. This drug is administered in which of the following ways?

a. Intravenously

b. Instilled into the urinary bladder

c. Orally

d. Intramuscular

Rationale: Bacillus calmette guerin when instilled into the urinary bladder of patients with superficial bladder cancer causes remission in up to 82% of patients fro an average of 4yrs.
Mr. Black is diagnosed with multiple myeloma. You would expect the physician to order a treatment regimen that includes which of the following?

a. Interferon alfa

b. bacillus calmette guerin

c. filgrastim

d. epoetin

Rationale: Interferon alfa has demonstrated anti-tumor effects in multiple myeloma, renal cell carcinoma, and others.
Mr. Carter id diagnosed with hairy cell leukemia. The physician orders interferon therapy to normalize his WBC. How long does therapy last with this drug?

a. 4 to 6 weeks

b. Indefinitely

c. Until the WBC count is normal for 3 months

d. 6 to 12 months.

Rationale: In hairy cell leukemia interferons normalize WBC counts in 70 to 90% of patients. Drug therapy must be continued indefinitely to avoid relapse with usually develops rapidly after the drug is discontinued.
After Mr. Gordon undergoes bone marrow transfusion, his physician administers sargramostim. When would your expect the first dose to be administered?

a. 30mins after the bone marrow infusion

b. 1hr after the bone marrow infusion.

c. Immediately after the bone marrow infusion

d. 2 to 4 hrs after the bone marrow infusion.

Rationale: When sargamostim is given to patients with cancer who have under gone bone marrow transplantation the drug should be stared 2 to 4hrs after the last dose of antineoplastic chemotherapy for 12 hrs after the last radiotherapy treatment.
When filgrastim is given to prevent infection in neutropenic patients with cancer the drug should be stared at least _______ hrs after the last dose of the anti-neoplastic agent and continued during the period of bone marrow suppression and recovery.
Mr. Wilson is receiving darbepoetin. The laboratory report indicates that his hemoglobin level increased 2 g/dl in 2 weeks. You would expect the physician to do which of the following?

a. Increase the medicaiton

b. Reduce the medication

c. Maintain the current dose

d. Discontinue the medication.

Rationale: With darbepoetin and epoetin, dosage is adjusted to achieve and maintain a hemoglobin value of no more than 12g/dL. Dosage should be reduced if the hemoglobin level approaches 12g/dl or increase by more than 1 g/dL in any 2week period.
Mrs. Crumb is beginning darbepoetin therapy. How often will the hemoglobin be measured?

a. Weekly until stabilized

b. Twice weekly until stabilized.

c. Monthly until stabilized.

d. Every other day until stabilized.

Rationale: With darbepoeitin and epoetin iron stores should be measured before and periodically during treatment. Hemoglobin should be measured twice weekly until the level is stabilized and maintenance drug doses are established.
For patients who experience severe adverse reactions with interferon alfa, dosage should be reduced by _________ or administration stopped until the reaction subsides.
With most of the hematopoietic and immunostimulant drugs, a CBC with WBC differential and ______ should be done before and during treatment to monitor response and prevent avoidable adverse reactions.
Platelet count