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Hematology
Blood
84
Biology
Undergraduate 2
02/28/2008

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Term
HEMATOLOGY
Definition
Term
Blood
Definition
  1. Function-transport oxygen/homeostasis
  2. Separated by centrifusion-it is composed of:
    1. –Plasma
    2. •uspended elements-
    3. –Electrolytes, antibodies
    4. –Formed cellular elements
    5. –RBC
    6. –WBC
    7. –Platelets
  3. Peripheral blood smear
    1. –Look at components under the microscope
    2. •Manual differential"
    3. –Machine looks at components
    4. •Auto differential"
Term

Blood Components

Plasma

Definition
  1. Plasma (55%) Serum
    1. –Water (90-95%)
    2. •lear, straw-colored fluid
    3. –Suspended substances
    4. •lectrolytes
    5. •ntibodies
    6. •rotein, Carbs, Fat, & Albumin
    7. •ormones
    8. •itrogenous wastes
    9. •ases
    10. –O2
    11. –CO2
Term

Blood

Leukocytes WBC's

Definition
  1.  
    1. –Leukocytes-WBC’s (1% of formed elements)
    2. •Defend body against disease
    3. •Can leave bloodstream-go to tissue
    4. •Elevated = leukocytosis
    5. •Decreased = leukopenia
Term

Leukocytes

5 Types of WBC's

Definition
  1. Five types WBC’s
  2. Granulocytes ("Big BEN")
  3. Basophils
  4. –Eosinophil
  5. –Neutrophils
  1. Non-Granulocytes
    1. –Lymphocytes
    2. –Monocytes
Term

Leukocytes

Granulocytes

Definition
  1. Granulocytes
    1. –Short life span
    2. –Increased in acute infection
    3. –Made in bone marrow
    4. –Surround and destroy invaders
    5. •Basophils
    6. –Allergies
    7. •Eosinophils
    8. –Parasites
    9. •Neutrophils
    10. –Nonspecific (first to respond)
    11. –Bands-immature (elevated levels = left shift)
    12. –Segs-mature
Term

Leukocytes

Non-Granulocytes

Definition
  1. Non-Granulocytes
    1. –Lymphocytes-lymph tissue
    2. •B cells-antibodies (Navy)
    3. –Aka humoral immunity
    4. •T cells-cell specific (Army)
    5. –Aka cell-mediated immunity
    6. –Monocytes
    7. •Nonspecific
    8. •Spleen has increased concentration
    9. •Macrophages (Marine)
    10. –Fixed in tissues
    11. •Defensive force
    12. –Migrate to tissues and lie in wait until activated
Term
Lymphatic System
Definition

Small vessels, ducts and nodes

Fluids flow from tissue spaces to circulatory system

Lymph Nodes–Produce lymphocytes and filter cell debris

Lymphadenitis–Inflammed nodes during severe infection

Term

Lymphatic System

Terms

Definition

Terms:

  1. Sepsis
    1. –Lymph nodes unable to contain infection
  2. Lymphoma
    1. –Primary malignant disease of the lymph nodes
Term

Lymphatic System

Consists of:

Definition

Lymphatic System consists of:

  1. Spleen
    1. –Located upper left quad
    2. –Stores and releases blood
    3. –Helps mature leukocytes
    4. –Filters and removes old blood cells
    5. –Problems
    6. •raumarupture and severe blood loss
    7. •plenomegaly
    8. –Usually with systemic infections or hemolytic anemias
  2. Thymus
    1. –Where T-cells mainly mature
Term

Platelets

aka thrombocytes

Definition
  1. Formed in Red marrow
  2. Adhere to each other during injury
  3. Release factors (VII, IX, etc) which initiate the clotting cascade
  4. Increase numbers= thrombocytosis
  5. Decreased numbers= thrombocytopenia
  6. risk of hemorrhage caused by use and destruction orproduction
  7. Normal life span=10 days
  8. Normal levels= 250,000-400,000
Term
Clotting
Definition
  1. #1 cause of initiation= Injury
    1. –Wall of injured vessel constrict and decreases blood flow
    2. –Platelets adhere to collagen fibers of the injured vessel forming a white thrombus or platelet plug
    3. –Serotonin is released from platelets
    4. –Serotonin initiates the clotting cascade
    5. –Bleeding will cease
    6. •cab will be produced
Term
Clotting Cascade
Definition
  1. Prothrombin + Prothrombin activator + Calcium = Thrombin
  2. Thrombin+ Fibrinogen + Calcium = Fibrin threads
  3. Entire process is dependent on an injury
Term
Blood Types
Definition
  1. Reaction to blood is determined by the receiver’s antibodies
  2. AB is universal recipient (no antibodies)
  3. O is universal donor (no antigens)
Term

Blood Administration

Blood Products

Definition
  1. Blood Products
    1. –PRBC’s
    2. –Whole blood
    3. –Platelets
    4. –FFP
    5. –Albumin
    6. –Globulin
Term

Blood Administration

Nursing considerations

Definition
  1. Nursing considerations
    1. –Give upon receipt
    2. –Max infuse time is 4 hours
    3. –Check by two licensed people
    4. NORMAL SALINE ONLY
    5. –Vitals
    6. –Monitor for reactions
Term

Blood Administration - Reactions

Circulatory Overload

Definition
  1. Circulatory overload
    1. –Dyspnea
    2. –Cough
    3. –Crackles
    4. –Frothy sputum
    5. –Common in elderly
    6. –Monitor rate
  2. Febrile
    1. –Fever
    2. –Chills
    3. –HA
    4. –NV
    5. Response to WBC’s
Term

Blood Administration - Reactions

Allergic

Definition
  1. Allergic
    1. –Mild-Hives
    2. –Severe-Anaphylaxis
    3. •ives, chills, dizziness, edema, wheezing, bronchospasm
    4. •eaction to plasma proteins
  2. Hemolytic
    1. –Response to antigen
    2. –Hypotension
    3. –Dyspnea
    4. –Back pain
    5. –Chest tightness
    6. –Hematuria
Term

Blood Administration-Reaction Care

Definition
STOP TRANSFUSION!!
  1.  
    1. Assess and intervene where necessaryCall the DR.
    2. Keep line open with NS
    3. Save bag and tubing
    4. Get urine specimen
    5. Document events
    6. Call lab or transfusion services
  2.  

Term

Anemias

Abnormally low number or altered characteristics of RBC’s

Definition

Abnormally low number or altered characteristics of RBC’s

Bottom line

–RBC’s carry O2

–RBC’s = O2 to tissues

•Fatigue

•Dizziness

•Near syncope or syncope

Term

Anemias 

3 main ways to have decreased RBC’s

 

Definition

3 main ways to have decreased RBC’s

–Blood Loss-hemorrhage or gradual

–Deficiency in production

•Bone marrow failure

•Malnutrition

–Excessive Destruction

•Toxins

•Tumor

Term

Anemias

Ways the body compensates

Definition

Ways the body compensates:

–Increase HR and RR

–Shunt blood away from non-vital organs

–Increase production of erythropoietin

Term

Anemia r/t blood loss

Decreased circulatory volume

 

 

Definition

30Anemia r/t blood loss

Decreased circulatory volume

Decreased O2 delivery

Manifests as:

–Pale, cold, clammy

–Confused

–Thirsty

–Hypotensive

–Tachycardic

–Oliguric

–Hypovolemic shoc

Term

Anemia r/t blood loss

Diagnosis

Definition

Anemia r/t blood loss

Diagnosis

–CBC

What is on a CBC?

–See Diagnostic Blood Study Sheet

Term

Blood loss anemia

Can be caused by:

 

 

Definition

Blood loss anemia

Can be caused by:

–GI Bleed

–Surgery

–Trauma

–Ineffective clotting

–Menstruation

Term

Anemia r/t Blood Loss

Treatment

Nursing

Definition

Treatment

–Identify cause and stop bleeding

–Transfusion

–Fluids

–O2

Nursing considerations

–I & O

–Monitor blood loss

–Frequent vitals

–Assessment

Term

Aplastic Anemia

Definition

Bone marrow goes bad

–60% mortality rate

ALL components made in bone marrow are suppressed

–RBC

–WBC

–platelets

Term

Aplastic Anemia - Etiology

Definition

Medications

–Chemotherapy agents

–Chloramphenicol

–Streptomycin

–steroids

Radiation

Viral infection

Inherited tendency

Term

Aplastic Anemia

Clinical manifestations

 

Definition

Aplastic Anemia

Clinical manifestations

–Ecchymosis-petechiae

–Excessive bleeding

•GI/GU/ gums?

•Epistaxis

–Frequent infections

–Fatigue-weakness-dizziness

–Dyspnea

–Palpitations

Term

Aplastic Anemia

Diagnosis

Definition

Aplastic Anemia

Diagnosis

–CBC

–Bone marrow Bx

•Needle aspiration -look for bleeding

Treatment

–Reverse isolation

–Transfusions

–ATB and Steroids

–Bone marrow transplant

•Destroy existing marrow and replace with healthy

Term

Aplastic Anemia

Nursing

Definition

Aplastic Anemia

Nursing

–Avoid fatigue

–Prevent infection/hemorrhage

–Decrease trauma/injury

–No needle sticks

–Exposure to infections

–Monitor for S/S of infection

–Skin integrity and hygiene

Term

Iron Deficiency Anemia

Definition

Population risk

Etiology

–Decreased Fe intake

–Malabsorption of Fe

 

S/S

–Fatigue

–Weakness

–Pallor

–Dizziness

–Dyspnea

-Body unable to make adequate Hgb

Term

Iron Deficiency Anemia

Diagnosis

Treatment

Definition

40Iron Deficiency Anemia

Diagnosis

–Serum blood test

•Serum Fe level (available Fe)

•Fe binding capacity-high

•CBC

•Ferritin

Treatment

–Fe supplements

–Symptoms

–R/O pernicious anemia

Term

Iron Deficiency Anemia 

Iron supplement adverse reactions

 

Definition

Iron supplement adverse reactions

–GI upset

–Constipation

–Stained teeth

–IM by Z-track method

–Black, tarry stools

Term

Iron Deficiency Anemia

Ferrous Sulfate -Teaching

Definition

Iron Deficiency Anemia

Ferrous Sulfate -Teaching

–Take PO Fe with food

–Liquid with a straw

–Dark stools

–Take with Vit C

–Increase fluids and fiber in diet

Term

Iron Deficiency Anemia

Fe rich foods

Toxic Fe levels

Definition

Iron Deficiency Anemia

Fe rich foods

–Organ meats

–Egg yolks

–Fish & chicken

–GREEN LEAFY

–Dried fruit (raisin and prunes)

–Dried beans

Toxic Fe levels

–Skin discoloration-Blue

–N/V

–Shock, seizures, hepatic injury

Term

Folic Acid Deficiency Anemia

Folic acid is required for DNA synthesis

Etiology

Definition

Folic Acid Deficiency Anemia

Folic acid is required for DNA synthesis

Etiology

–Poor diet

–Malabsorption

–Drugs-sulfa-steroids -estrogen

–Infants (because mom didn’t have enough)

–ETOH (malnutrition) big one

–Pregnant adolescents (increased need)

Term

Folic Acid Deficiency Anemia 

S/S

Definition

S/S

–Glossitis

–Diarrhea/ constipation

–Pallor

–Wt loss

–Muscle pain

–Insomnia

–Increase risk of miscarriage

Term

Folic Acid Deficiency

Treatment

Definition

Folic Acid Deficiency

Treatment

–Folic acid replacement

–Increase intake of folacin-rich foods

–Fe foods + wheat germ yeast and milk

–Needs Vit C to increase absorption

–Modify drug choices

Term

Pernicious Anemia

Definition

Pernicious Anemia

Decreased HCL production leads to atrophy of mucosa in fundus of stomach

–Decreased production of intrinsic factor

Failure of the stomach to secrete adequate amounts of intrinsic factor for absorption of Vitamin B12 (cobalamin)

–Causes of decreased HCL

•Gastric or small bowel surgery

•Autoimmune

Term

Pernicious Anemia

Vitamin B12 (Cobalamin)

Definition

Pernicious Anemia

Vitamin B12 (Cobalamin)

–A MUST for Fe to absorbed by the body

–Also required for nerve myelination

–Therefore----

•B12 deficiencies cause severeirreversiblenerve damage

•Anemia

Term

Pernicious Anemia

S/S-Anemia

Neuro S/S

Definition

Pernicious Anemia

S/S-Anemia

–Weakness

–Dyspnea

–Fatigue

–Hypoxia

–Jaundice

–Glossitis

–Deterioration of teeth and gums

 

Neuro S/S

–Behavior changes

–Paresthesia

–Ataxia (defective muscular coordination)

–Poor memory

Term

Pernicious Anemia

Diagnosis

Definition

Pernicious Anemia

Diagnosis

–Schilling Test

–CBC

•Macrocytic RBC

•Decrease H & H

•Decrease Retic count

–Low Serum B12 level

Term

Pernicious Anemia

Treatment

Nursing Care

Definition

Pernicious Anemia

Treatment

–Vitamin B12 injections for LIFE

–Fe and Folic acid replacement

Nursing Care

–Frequent VS

–Diet teaching

–Special mouth care

–Prevent fatigue

Term

Hemolytic Anemia

Destruction of RBC’s

Etiology

Definition

Hemolytic Anemia

Destruction of RBC’s

–Hemo= blood, Lysis= destroy/separate

Etiology

–Congenital

•Thalassemia

•Sickle Cell

–Acquired

•Wrong blood type transfused

•Snake bite

•Drugs

•Chemotherapy/Cancer

•Sometimes unknown

Term

Hemolytic Anemia

S/S

Definition

Hemolytic Anemia

S/S

–Jaundice

–Hematuria

–Splenomegaly

–Back Pain

–All other anemia S/S

Term

Hemolytic Anemia

Diagnosis

Definition

Hemolytic Anemia

Diagnosis

–Direct Coombs Test

•Checks to see if antibodies present-caused by trauma (birth) or drugs

–Indirect

•Blood typing-antibody/ antigens on surface of RBC

–CBC

•Retic count

Term

Hemolytic Anemia

Treatment

Definition

Hemolytic Anemia

Treatment

–Blood and blood product replacement

–Genetic counseling

–Splenectomy

–Steroids

•Suppress antibodies

–Maintain renal function

Term

Hemolytic Anemia -Congenital

Thalassemia

Treatment

 

Definition

Hemolytic Anemia -Congenital

Thalassemia

–Increases incidence in Eastern, Asian and African cultures

–Autosomal recessive disorder

–Major or minor

–Can be fatal

Treatment

–Transfusions

Term

Hemolytic Anemia-Congenital

Sickle Cell Anemia

Definition

Hemolytic Anemia-Congenital

Sickle Cell Anemia

–Increased incidence in African Americans and those of Mediterranean countries

–Hereditary hemolytic anemia

•Autosomal recessive trait

–Defective Hgb will form crescent shape

–RBC’s "sickle" under certain circumstances

Term

 

Hemolytic Anemia-Congenital

Sickle Cell (cont’d)

S/S

 

Definition
  1. Sickle Cell (cont’d)
    1. –These sickled cells get caught in capillaries which obstruct blood flow causing ischemia and infarction
    2. –Sickled cells are rapidly destroyed
  2. S/S
    1. –Anemia
    2. –Fatigue, pallor, activity intolerance
    3. –Fever, jaundice
    4. –Joint and abdominal pain
    5. –Enlarged liver and spleen
Term

 

Hemolytic Anemia-Congenital

Sickle Crisis Diagnosis–Treatment

Definition

Sickle Crisis

Episodic event with increased symptoms

Diagnosis

Decreased RBC

Hgb electrophoresis

Treatment

Hydration

Pain medication

Blood transfusions

Genetic counseling

Treat symptoms

Term

Hemolytic Anemia - Congenital

Teach

Definition
  • Teach
  • –Avoid high altitudes or other events which will precipitate hypoxia
  • –Avoid dehydration
  • –Avoid strenuous exercise
  • –Avoid illness
Term

Hemophilia A

Heredity

Definition
  • Hereditary
    • –Sex linked (X chromosome)
    • –Female is carrier
    • –Male usually manifests the disease
    • –Deficiency of Factor VIII
    • •Converts prothrombin to thrombin
    • –Prolonged coagulation time
Term

Hemophilia A

S/S

Definition

Hemophilia A

S/SAbnormal bleeding

Edema in joints r/t bleeding

Pain with movement

Crippling deformities

Major injury can be fatal

Hemorrhage internal and externally

Term

Hemophilia

Treatment

Transfusions

Teaching

Definition
  • Transfusions
    • –PRBC’s
    • –FFP-clotting factors
    • •Contains Factor VIII-
  • Teaching
    • –Avoid injury -DUH!
    • –Medic alert
    • •No ASA, Ibuprofen
    • –Safety
    • •Knee and elbow pads
    • •Avoid being overprotective
    • •Bleeding first aid
Term

Von Willebrand’s Disease

     

Definition

Von Willebrand’s Disease

  1. Less serious form of Hemophilia A
  2. Congenital bleeding disorder
    1. –deficiency of factor VIII
  3. Autosomal dominant trait
  4. Manifests at an early age, usually as epistaxis or easy bruising
  5. Symptoms typically decrease in severity with age
Term

Von Willebrand's Disease

Diagnosis

Treatment

Definition
  1. Diagnosis
    1. –Symptoms
    2. –Prolonged bleeding time
    3. –Factor VIII deficiency
  2. Treatment
    1. –Administration of factor VIII 24 hours prior to surgical procedures or during attacks of bleeding
Term

Von Willebrand’s Disease

Nursing Care

Definition
  • Nursing Care
    • –Assess for symptoms of prolonged bleeding..
    • •Petechiae
    • •Bruising
    • •Epistaxis
    • –Protect from injury
    • –Monitor for signs of active or occult bleeding
    • –Provide supportive care to patient and family
Term

Polycythemia Vera

Definition
  • Polycythemia Vera
  • Excessive production of RBC’s
  • Concentration of Hgb increases
  • Blood flow sluggish
    • –Tends to form clots
  • Etiology
    • –Unknown
    • –Hypoxia
Term

Polycythemia Vera

S/S

Definition

Polycythemia Vera

S/S

 –Red face

–Purple lips

–Dizziness

–Fatigue

–Pain in extremities

–Weakness–HA

Term

Polycythemia Vera

Diagnosis

Treatment

Definition
  • Polycythemia Vera
  • Diagnosis
    • –CBC
  • Treatment
    • –Phlebotomy Drain
    • Drain 500-800 cc blood
    • –Suppress RBC production
    • –Increase fluid intake
    • Prevent clots
Term

Thrombocytopenia

Etiology

Definition
  • Thrombocytopenia
  • Decrease in number of platelets
  • Less than 100,000
  • Etiology
    • –Not enough being made or being destroyed
    • –Idiopathic Thrombocytopenia Purpura
    • Platelets destroyed
    • –Drugs
    • Chemotherapy
    • Etoh or illegal drugs
    • NSAIDS,ASA
    • Quinidine
    • Sulfa bases
    • Oral hypoglycemics
    • –Leukemia
    • Platelet production decreased
Term

Thrombocytopenia

S/S

Diagnosis

Definition
  • S/S
    • –Pupura
    • Large red/purple spots under the skin
    • –Ecchymosis
    • –Petechiae
    • Smaller, fine red/purple spots under the skin
    • –Prolonged, heavy menses
    • –epitaxsis
  • Diagnosis
    • –CBC
    • –Bone Marrow aspiration
Term

Thrombocytopenia

Treatment

Nursing

Definition
  • Treatment
    • –Platelet replacement
    • –Splenectomy
    • –IVIG
    • –Remove causative agent
  • Nursing
    • –Prevent Injury
    • –Report s/s of occult bleeding
    • –Disease process
Term

Leukemia

Etiology

Definition
  • Rampant proliferation of leukocytes
  • Immature, ineffective disease fighters
  • Crowds bone marrow-
    • –Inability to produce RBC’s and Platelets
  • Two types: myelogenous (myeloid line) & lymphocytic (lymphoid line)
  • Etiology
    • –Genetic-Down’s syndrome
    • –Viral
    • –Radiation
    • –Chemo
    • –Insecticides
    • –Fertilizers
    • –Cleaning agents
Term

Leukemia

Myeloid Line

CML

Definition
  • Classed according to where it’s involved
  • Myeloid Line
    • –AML-Acute myelogenous leukemia
    • Children
    • poor prognosis
    • –CML-Chronic myelogenous leukemia
    •  Adults
    • 3-5 yr survival rate
Term

Leukemia

 Lymphloid Line

CLL-Chronic lymphocytic leukemia

Definition
  • Lymphloid Line
    • ALL-Acute lymphocytic leukemia
    • •Children
    • •5yrs+ remission possible
    • •Most curable
    • CLL-Chronic lymphocytic leukemia
    • •Adult
    • •Nearly asymptomatic
    • •Prognosis can go either way
Term

Leukemia - Manifestations

Definition
  • Leukemia-Manifestations
  • Low grade fever and night sweats
  • Enlarged lymph node, spleen
  • Bone pain
  • Malaise
  • Low RBC’s
    • –Pallor
    • –Fatigue
  • Low platelets
    • –Bleeding
    • –Petechiae
  • Frequent infections
    • –WBC
Term

Leukemia

Diagnosis

Definition
  • Diagnosis
    • –WBC high or low
    • •Blasts presents
    • –CXR
    • –Bone Marrow Aspiration
    • –Lymph node bx
Term

Leukemia

Treatment

Definition

Treatment

To induce remission or achieve palliation

Chemo

Induction-destroys diseased marrow/immature WBC’s

Maintenance

Radiation

ATBPreventative

Bone marrow transplant

Blood Transfusions

Term

Leukemia

Nursing

Definition
  • Nursing Care
    • –Infection is the #1 killer
    • –Prevent injury
    • •Bleeding is a common side effect of therapy
    • –Comfort
    • –Encourage self-care
    • –Coping
    • •Hair loss and grief
    • –Assess for and treat complications
    • •N/V, stomatitis
    • •Neutropenic fever
Term

Lymphomas

  • Malignancy of the lymph glands
  • Etiology
Definition
  • Malignancy of the lymph glands
  • Etiology is unknown; however, a virus is suspected
  • Two types
    • –Hodgkin's
    • –Non-Hodgkin's
Term

Hodgkin's Lymphoma

S/S

Definition

S/S

–Painless enlarged lymph nodes-can be anywhere

–Low grade fever

–Night sweats

–Weight loss

–Anemia

–Frequent infections

Term

Hodgkin's Lymphoma

Diagnosis

Treatment

Definition

Diagnosis

–Lymph node/ bone marrow biopsy

Reed-Sternberg  cells in lymph node biopsy

Treatment

–Radiation

–Chemo

–Steroids

Term

Lymphoma

Hodgkin's and Non-Hodgkin's

Definition

Nursing Care

–Treat complications of radiation and chemotherapy

–Avoid infection

–Can be very hopeful depending on stage

Term

Lymphoma

Non-Hodgkin's

Definition

Similar signs and symptoms to Hodgkin’s

Same Treatment as with Hodgkin’s

Absence of Reed-Sternberg cells

Less Hopeful

Term

Multiple Myeloma

Definition

Plasma cells proliferate in the bone marrow causing excruciating pain

Bone tumors

Myeloma infiltrates the liver, spleen, and kidneys

Term

Multiple Myeloma

Diagnosis

 

Definition

Diagnosis

–Skeletal X-rays

Bence Jones Protein in urine

Term

Myeloma

Treatment

Definition

Treatment

–Chemo

–Radiation

–Steroids

–ATB

–Blood Transfusions

–Braces

Term

Myeloma

Complications

Definition

Complications

–Pathologic fractures

–Anemia

–PAIN!!! (lots)

–Infection

–Renal failure r/t increased Ca levels from bone demineralization

Term

Myeloma

Nursing Care

Definition

Nursing Care

–Pain

–Safety

–I & O

–Prevent infection

Term

Lymphedema

Definition

Decreased drainage of the lymph system

Congenital

–Pitting edema to lower extremities

Acquired

–Following tumor removal (mastectomy)

–Parasites in tropical countries

–Overwhelming infection

Term

Lymphedema

Treatment

Nursing Care

Definition

Treatment

–Elevate extremities

–Exercise to promote circulation

–Elastic gloves or stocking to promote venous return

–Eliminate cause

Nursing Care

–No BP’s, IV’s, IM’s

–Monitor for cellulitis

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