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test4
hemo, integ, burns
46
Nursing
Undergraduate 2
04/17/2013

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Term
Erythrocytes
Definition
RBC:4-5F, 4.5-6M
transport 02 and c02
assist in acid-base balance
Term
HGB
Definition
12-16F, 13.5-18M
protein-iron compound
binds and transports 02 and c02
Term
Erythropoesis
Definition
RBC production
stimulated by hypoxia
controlled by release of erythropoetin from kidneys
Synthetic form: epigen and procrit-given during dialysis
Term
hemolysis
Definition
destruction of erythrocytes
removes old/abnormal/defective RBC
occurs in marrow, liver, spleen
results in increased bilirubin
Term
Thromocytes
Definition
platlets: 150k-400k
hemostasis: clotting process
forms plug when there is capillary damage
Term
spleen
Definition
produces RBC prenatally
filters old/defective erythrocytes
recycles iron
stores 30% platelets
immune function
Term
liver
Definition
filter
produces procoagulants
stores excess iron
Term
lymph system
Definition
carries fluid from interstitial spaces to blood
returns proteins, fats, hormones to circulation
helps prevent edema
Should either be unpalpable or firm, mobile,small, nontender
Term
pancytopenia
Definition
decrease in RBC, HGB, HCT, WBC, platelets
Term
thromocytopenia
Definition
platelet count of less than 150k
if less than 50k-bleeding profusely over small injury
<20k, spontaneous hemmorage
ITP: immune thrombocytopenia
TTP: thrombotic thromocytopenic purpura
HITTS: heparin induced thrombocytopenia and thrombis syndrome
Term
ESR
Definition
1-20F, 1-15M
Erythrocyte sedimentation rate
elevated due to inflammatory process
can rule out autoimmune disorders
Term
Bone marrow biopsy
Definition
usually iliac crest
diagnosing hematologic conditions
hold pressure 5-10 mins, conscious sedation, sterile dressing, lie on operative side 30-60 mins on firm surface
Term
Anemia
Definition
palpitations, dyspnea on exertion, fatigue (PDF)
HGB <6- Angina, tachycardia, CHF, MI
Term
Fe (Iron) deficiency anemia
Definition
inadequate intake, malabsorption, blood loss
2ml of blood contains 1mg Fe
PDF, glossitis, chelitis, HA, paresthesias, burning sensation of tongue
labs-decreased H/H, serum iron
treat underlying cause, replace Fe
Term
Thalassemia
Definition
insufficient production of Hgb
T.Minor-asymptomatic, no treatment
T.Major-develops in childhood. PDF, splenomegaly, hepatomegaly, downs appearance from thickening of cranium and maxillary cavity, jaundice
Transfusions to keep hgb 10, chelation, zinc, splenectomy
most die of cardiac problems due to elevated iron from transfusions
Term
cobalamin deficiency
Definition
dietary deficiency or lack of gastric intrinsic factor
sore tongue, anorexia, n/v, abd pain, weakness, parethesias, impaired thought process
large RBC, decreased H/H, decreased cobalamin
shilling test or neg. gastric acid =IF deficiency
encourage nutrition, IM admin. cobalamin
Term
Folic acid deficiency
Definition
poor nutrition, malabsoprtion, drugs, ETOH, hemodialysis
sore tongue, anorexia, n/v, abd pain, low serum folate, PDF, dyspepsia, beefy tongue
Folic acid po, dietary changes
Term
Aplastic anemia
Definition
pancytopenia, PDF
figure out cause, supoprt, stem-cell transplant, immunosupressive therapy
Term
Anemia:acute blood loss
Definition
sudden hemorrhage
s/s based on amount lost
decreased HGB/HCT
replace blood volume, identify cause, NS or LR, albumin, supplemental Fe
Term
Anemia: Chronic blood loss
Definition
ulcers, gastritis, hemorrhoids, menstrual loss
treat cause, stop bleeding, supplemental Fe
Term
hemolytic anemias
Definition
intrinsic: usually hereditary
extrinsic: antibody mediated, toxins, mechanical injury
Term
Sickle cell anemia
Definition
Autosomal recessive, intrinsic
deformed cells when hypoxic
incurable-usually fatal by middle age due to renal and pulm. failure
mild anemia, pain, jaundice, kidney failure, spleen disorder, heptomegaly, leg ulcers, priapism, fatigue
sickledex-exposes RBC to deoxygenation agent
Term
Sickle cell crisis
Definition
vaso-occlusion, pain, shock, fever, swelling, tachypnea,HTN, N/V, can be fatal
may be caused by infection or dehydration
o2, pain meds, bed rest, fluids, transfusion, hydrea, teaching
Term
hemachromatosis
Definition
increased intestinal iron absorption and increased tissue iron deposition
liver enlargement and cirrhosis
skin changes, cardiac changes, arthritis, testicular atrophy
elevated Fe, TIBC, serum ferritin
remove iron (blood)
Term
polycythemia
Definition
increased RBC
Primary: chromosomal mutation
increased RBC, Platlets, WBC-congestion of organs
Secondary: caused by hypoxia
care: reduce blood volume, hydrate, myelosuppresive agents, maintain 02, I's and 0's, ROM to prevent thrombus
Term
Immune thromocytopenic purpura (ITP)
Definition
platelets coated with antibodies the spleen will destroy
platlets only survive 1-3 days
corticosteroids, splenectomy, immunoglobulin,danzole, immunnosuppresive drugs
avoid NSAIDS
Term
Thrombotic thrombocytopenia purpura (TTP)
Definition
coagulation occurs,bleeding occurs
hemolytic anemia, thrombocytopenia, neuro abnormalities, fever in absence of infection, renal abnormalities
caused by: drug tox, preg, infection, lupus, scleroderma
treat underlying cause, corticosteroids, plasma exchange, splenectomy, immunosupressants
Term
Heparin induced thromocytopenia and thrombis syndrome (HITTS)
Definition
immune response to heparin promotes platelet destruction as well as platelet-fibrin thrombi
suspect if: platlets drip 50% from baseline or PTT decrease
d/c heparin, start on refludan/argatroban/arixtra/ coumadin once plt >100k
plasmapherisis
protamine sulfate
Term
Hemophilia and von willebrands
Definition
A-lacks factor VIII and fibrinogen (80%)
B-lacks factor IX and fibrinogen
VW-deficiency of VW coagulation protein
s/s-prolonged bleeding, hematuria, gi bleed, splenic rupture, ecchymoses and hematomas, hemarthrosis
dx-unaffected Prothrombin time, thrombin time, platlets. PTT prolonged
prevent bleeding, replace clotting factors DDAVP (A and VW), gene therapy
Term
Desseminated intravascular coagulation (DIC)
Definition
coagulopathy. Inflammatory response, immune system fals, coagulation system overreacts
causes- shock, septicemia, hemolytic processes, obstetric conditions, tissue damage, malignancy, liver disease, autoimmune
microemboli occur, depletion of clotting factors cause uncontrolled bleeding
s/s-microemboli, embolis formation and travel, bleeding,+d-dimer, thromocytopenia, decreased fibrinogen, PT, PTT prolonged
treat underlying cause
heparin
Term
Myelodysplastic syndrome (MDS)
Definition
change the quantity and quality of bone marrow elements
abnormal cells take over bone marrow
results in anemia, thrombocytopenia, neutropenia
procrit, chemo, stem cell transplants, antibiodic, Vidaza
Term
Acute leukemia
Definition
immature hematopoietic cells (fast)
Term
chronic leukemia
Definition
mature WBC, gradual onset, slow
Term
Acute Myelogenous Leukemia (AML)
Definition
uncontrolled proliferation of myeloblasts
hyperplasia of bone marrow and spleen
Term
Acute lymphocytic leukemia (ALL)
Definition
children
immature lymphocytes proliferate in the bone marrow
fever, bleeding
CNS manifestations
Term
chronic Myelogenous leukemia (CML)
Definition
excessive mature neoplastic granulocytes in bone marrow
genetic marker: philadelphia chromosome
Term
Chronic lymphocytic leukemia (CLL)
Definition
production and accumulation of functionally inactive. long lived, mature appearing lymphocytes
b cell involvement
pain and paralysis
Term
Hairy cell leukemia
Definition
b lymphocyes that infiltrate bone marrow and liver
hairy looking cells
splenomegaly, pancytopenia, infection, vasculitis
Term
unclassified leukemia
Definition
poor prognosis
Term
clinical manifestations of leukemia
Definition
bone marrow failure, anemia, thrombocytopenia, decreased WBC, splenomegaly, hepatomegaly, lymphadenopathy, bone pain, meningeal irritation, oral lesions, masses
Term
leukemia diagnostic studies
Definition
peripheral blood evaluation
bone marrow evaluation
Term
leukemia tx
Definition
chemotherapy
stem cell transplant
Term
lymphoma
Definition
malignant neoplasms originating in the bone marrow nad lymphatic structures
dx-blood analysis, lymph node biopsy, BM exam, chest xray, radioisotope studies, ct/pet scan, lymphangiongram
tx-chemo, bio therapy, radiation, BMT, stem cell transplant
Nursing: manage pancytopenia, pain, support
Term
Hodgkins lymphoma
Definition
proliferation of abnormal giant, multinucleated cells
sign-reed-sternberg cells in lymph nodes
s/s-lymphadenopathy, fatigue, tachycardia, bone pain, ETOH induced pain, B symptoms-fever, night sweats, weight loss,
hepatomegaly, splenomagaly, superior vena cava syndrome, spinal cord compression
Term
non-hodgkins lymphoma
Definition
malignancy of immune system in which lymphocytes arrested in various stages of development
lymph node enlargement
spreads quickly-renal, liver, airway obstruction, cardiac tamponade, neuro sx
poor prognosis
Term
multiple myeloma
Definition
neoplastic plasma cells infiltrate BM and destroy bone
skeletal pain, osteoporosis, spinal cord compression, pathologic fracture, hypercalcemia, elevated protein, pancytopenia
dx-presence of monoclonal antibody, pancytopenia, elevated creatinine, + Urine bence jones protein, xray, BM analysis
tx-chemo, radiation, bio, stem cell, drugs
nursing:weight bearing, hydration, braces, pain
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