Hematologic Disorders Flashcards

1
Q

what is anemia

A

decrease in RBC’s or hemoglobin concentration below normal

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2
Q

what causes anemia

A

hemorrhage
hemolysis
bone marrow suppression
absence of iron, B complex vitamins, erythropoietin

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3
Q

signs and symptoms of anemia

A
anorexia
pallor
skin breakdown
jaundice
tachycardia and tachypnea
altered neurologic status/behavior changes
weakness/ low activity tolerance
gum hypertrophy 
smooth tongue
blood in urine or stool
infections
cold intolerance
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4
Q

how does anemia effect your circulatory system

A
hemodilution
decreased peripheral resistance
increased cardiac circulation and turbulence (may have murmur, to lead to cardiac failure)
cyanosis
slowed growth
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5
Q

how do you treat anemia?

A

treat underlying cause
transfusion after hemorrhage if needed
nutritional intervention for deficiency anemias

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6
Q

supportive care of anemia

A

IV fluids to replace intravascular volume
Oxygen
Bed rest

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7
Q

nursing considerations for anemia

A
prepare child/family for lab test
decrease o2 demands
safety
good hand washing and mouth care
maintain normal body temp
prevent complications
support family
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8
Q

clinical manifestations of iron deficiency anemia

A
irritability, anorexia
pallor of skin and mucous membranes 
mild growth retardation
exercise intolerance
frequent infections
cognitive delays and behavioral changes
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9
Q

causes of iron deficiency anemia

A

inadequate iron stores at birth
deficient dietary intake r/t rapid growth rates during infancy, toddler, and adolescence, excessive milk intake, poor general eating habits, exclusive breath feeding after 6 months
impaired iron absorption

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10
Q

how do you prevent iron deficiency anemia?

A

breast milk or commercial infant formula for the first 12 months of life
limit formula to 1 liter a day (32 oz)
limit milk to less than 24 oz/day

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11
Q

management of iron deficiency anemia

A

nutritional supplements; by age 6 months
(iron fortified formula, iron fortified cereal)
iron supplements ( ferrous sulfate)
blood transfusions in serious cases

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12
Q

nursing implications for iron deficiency anemia

A
pay attention to milk and iron intake
determine and eliminate the cause
provide food rich in iron ( green leafy veg, beans, beef, lentils)
teach parents to administer supplements
administer iron safely
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13
Q

how to administer oral iron

A

best absorbed in an acidic environment (give with apple or orange juice)
give with straw or back of mouth past teeth
rinse mouth and brush teeth after administration

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14
Q

what to teach parents about administering oral iron

A

measure accurately, increase fluids and fiber

iron can be deadly, lock up meds, keep out of reach

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15
Q

what foods/drinks do you avoid with oral iron?

A
antacids
coffee
tea
dairy products
eggs
whole grains
avoid all of these 1 hour before or two hours after administration
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16
Q

adverse effects of iron administration

A
nausea
gastric irritation
constipation
diarrhea
anorexia
staining of teeth
tarry stools 
overdose is LEATHAL
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17
Q

what is sickle cell anemia

A

autosomal recessive hemolytic anemia
mist common in African Americans, Mediterranean, middle eastern, and Indian descents
usually asymptomatic until 6m

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18
Q

pathophysiology of SCA

A

HgB S has altered amino acid structure making it less soluble than HgB A
RBC’s become rigid, fragile, and rapidly destroyed. cells loose ability to flow easily through tiny capillaries, and obstruct blood flow
microscopic obstructions lead to engorgement and tissue ischemia
RBC’s with HbG S live less than 20 days

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19
Q

complications of SCA

A
acute painful episodes ( sickle cell crisis)
stroke
sepsis
acute chest syndrome
reduced visual acuity
chronic leg ulcers
delayed growth and development
delayed puberty
priapism
enuresis (bed wetting)
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20
Q

what causes sickle cell crisis

A

anything that increases the bodies need for oxygen, or alters the need for oxygen
trauma
infection, fever
physical and emotional stress
increased blood viscosity due to dehydration
hypoxia ( r/t altitude, no pressurized plane cabins, hypoventilation, vasoconstriction due to hypothermia)

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21
Q

vaso-occlusive (VOC) thrombotic event (SCA)

A

painful event/ episode
most common type of episode- PAINFUL
stasis of blood with clumping of cells in microcirculation causing ischemia/infarction
s/s- fever, pain, tissue engorgement

22
Q

Splenic sequestration (SCA)

A

life threatening- death can occur within hours
blood pools in spleen
s/s- profound anemia, hypovolemia, shock

23
Q

Aplastic Crisis (SCA)

A

diminished production and increased destruction of RBC’s
triggered by viral infection or depletion of folic acid
s/s- profound anemia, pallor

24
Q

acute chest syndrome ( SCA)

A

similar to pneumonia
VOC or infection results in sickling in lungs
chest pain, fever, cough, tachypnea, wheezing, and hypoxia
repeated episodes may lead to pulmonary HTN

25
prognosis of SCA
no cure (except possibly bone marrow transplant) frequent bacterial infections bacterial infection can lead to death in young children stokes are at an increased risk
26
palliative tx of SCA
erythropoietin or hydroxyuria | PCN prophylaxis
27
nursing considerations for crisis management of SCA
``` maintain hydration maintain oxygenation (avoid altitudes, hot weather, manage stress) pain management ( kids require more pain meds than normal child) ```
28
Cooley's anemia ( Beta Thalassemia)
``` inherited blood disorder both parents must carry disorder HgB synthesis reduced or entirely absent chronic hypoxia detected in infancy or toddlerhood (pallor, FTT, severe anemia, hepatosplenomegaly) ```
29
manifestations of Cooley's anemia ( beta thalassemia)
severe anemia bronzed skin bone pain, skeletal deformities, fractures iron overload r/t transfusions, treat with chelating drugs
30
medical tx of cooley's anemia (beta thalassemia)
diagnosed with Hgb electrophoresis | blood transfusion to maintain normal levels (side effect hemosiderosis)
31
how do you treat hemosiderosis
iron-chelating drugs- binds to excess iron for excretion by kidneys IV or subq over 8-10 hours multiple times/week may be given at home with IV pump per parents can be given orally also give oral vitamin c to facilitate iron binding
32
nursing care for cooley's anemia ( beta thalassemia)
administer RBC monitor chelation therapy (n/v/d, decreased appetite, rash, increased liver enzymes, neutropenia, adequate hydration is VITAL
33
what is SCID
absence of both humeral and cell mediated immunity | unknown cause
34
clinical manifestations of SCID
``` early, frequent infections FTT chronic diarrhea persistent thrush adventitious lung sound r/t pneumonia low levels of immunoglobulins stem cell replacements BUBBLE KIDS- live in a sterile environment ```
35
medical/nursing management of SCID
``` IV immunoglobulin sterile environment bone marrow transplant prevent exposure to infections support and educate family ```
36
HIV in kids
transmission from + mom prenatal, perinatal, breast milk blood transfusions unprotected sex
37
why are adolescents most at risk for HIV
drugs and unprotected sex
38
how do you treat newborns born to a positive HIV mom
antiviral therapy for first month of life
39
medical management of kids with HIV
antivirals therapy for infants born to positive moms for first month of life aggressive antibiotic therapy for infections modified immunization schedule prophylaxis against opportunistic infections
40
what is ITP
acquired hemolytic disorder destruction of platelets in the spleen Bleed very easily
41
treatment of ITP
``` supportive anti-D antibody- plasma derived immunoglobulin that causes transient anemia by clearing the antibody coated RBC IVIG steroids for 1-2 weeks splenectomy and IVIG if chronic ```
42
nursing considerations for ITP
educate parents assess for bleeding prevent trauma avoid unnecessary procedures, needle sticks, suppositories, rectal temps apply pressure for 5 minutes after venipuncture follow up care in home or clinic
43
what is hemophilia
deficiency of specific clotting factors | hereditary
44
hemophilia A
classic hemophillia deficient of factor VIII males most affected degree of bleeding depends on amount of clotting factor and severity of a given injury
45
manifestations of hemophilia
``` bleeding tendency symptoms may not occur until 6 months hemarthrosis- bleeding into the joint space (knee, ankle, elbow, leading to impaired mobility) ecchymosis (bruising) epistaxis bleeding after procedures ```
46
early signs of hemarthrosis
stiffness, tingling, or ache followed by decreased mobility, warmth, redness, welling and severe pain
47
medical management of hemophilia
``` prevent bleeding ( no contact sports, riding scooters, PAD child during activities) replacement of deficient factor ( VIII or DDAVP) regular exercise and PT ```
48
nursing interventions for hemophilia
prevent bleeding safe environment, use of protective equipment avoid ASA sub q instead of IM venipuncture vs heel stick, no suppositories electric razors avoid contact sports soft toothbrush recognize and control bleeding (pressure x15min, RICE) be suspicious of headache, slurred speech, altered LOC, black tarry stools
49
HS purpura
unknown etiology occurs 6m - 16yrs generalized vasculitis of dermal capillaries extravasation of RBC's, produces petechial skin lesions inflammation and hemorrhage in GI tract may lead to ongoing nephrotic syndrome
50
therapeutic management/nursing of HS purpura
``` most cases resolve without treatment corticosteroids and anticoags from severe or persistent cases symptomatic treatment maintain hydration monitor renal function ```