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78 Cards in this Set

  • Front
  • Back
What is normal RBC?
3.9-5
What is normal Hgb?
10-13
What is normal HCT?
31-39
What is normal for platelets?
200-400,000
Hct in the 20's is...
low
Another name for RBC

they live for _____ days
erythrocytes

120
Who removes old RBC from circulation?
spleen
What are baby RBC's called?
reticulocytes
Anemia is not a __________ but a term used to describe a __________ in the _________ carrying capacity of the blood.
Anemia is not a DISEASE, but a term used to describe a DECREASE in the OXYGEN carrying capacity of the blood
Lab values that indicate anemia:

Hg
Hct
Hg below 10
Hct below 31
General causes of anemia
1.
2.
3.
4.
1. Excessive Blood Loss
2. Destruction of RBC
3. Decreased or impaired production of RBC or components
4. Another disorder that this a symptom
Symptoms of anemia include:
cardio -
respiratory -
CNS -
Skin -
cardio - tachycardia, decreased cap refill

respiratory - hypoxemia, increased RR, activity intolerance

CNS - decreased LOC

Integumentary - pale mm, skin and nailbeds
Why is there tachycardia with anemia?
because heart is pumping faster in effort to get oxygen to cells
What are the diseases with anemia?

List 7
Iron Deficiency Anemia

Sickle Cell Anemia

Beta Thalassemia Major

Aplastic Anemia

Hemophilia

von Willebrand Disease

Immune Thrombocytopenic Purpura (ITP)
Iron Deficiency Anemia is the most common heme disorder in kids. It peaks in what age?
6 months - 2 years

and reemerges as a problem in teens
Iron Deficiency Anemia causes:

preemies -

toddlers -

adolescents -
premies - inadequate iron stores at birth

toddlers - excessive intake of milk

Adolescents - poor dietary choices, menses
What are the numbers for

mild anemia (Fe)

moderate anemia (Fe)

severe anemia (Fe)
mild - hg 9-11

moderate hg 7-9

severe hg below 7
Mild Fe deficiency anemia can be asymptomatic, but moderate shows these manifestations:

mild Hgb 9-11
moderate Hgb 7-9
irritability
easily fatigued
doesn't want to play
Severe Iron Deficiency anemia has the following manifestations.

Hgb below 7
pallor, heart murmur, spoon nails, hair falls out, speen enlargment,

FLOW MURMUR
PALE
Newborns have stored iron that lasts this long...

premies use up their stores by __________ weeks.
Full term infant stores last up to 20 weeks (5 months)***this is when we add RICE cereal

Premies use up their stores by 6-12 weeks
What do the RBC's look like with iron deficiency anemia?
microcytic, hypochromic
With Fe Deficiency Anemia, what is level of Hct and Hg?

Serum Iron and Serum Ferritin?
Hct down
Hg down

Serum Iron down
Serum Ferritin down
What is retic count? How does it pertain to anemia?
Reticulocytes are immature or newly released red blood cells. Elevated retic count means the bone marrow is responding to anemia by releasing new RBC's into circulation.
What is supplement to be given for Fe deficient anemia?
Ferrous sulfate
What increases absorption of iron?
orange juice
How long do you continue therapy for iron deficiency anemia?
continue therapy for AT LEAST 2 MONTHS after labs return to normal
Side Effects of iron supplements
n/v cramps
CONSTIPATION
diarrhea
black/green stools
Iron is absorbed better ___________ food.
without
What type of inheritance is SCA?
autosomal recessive
What type of Hemoglobin does SCA patient have?

What type of Hemoglobin does infant have?

Why do these relate?
HbS

HbF - does not sickle, so asymptomatic until 6 months of age
What does Hydroxurea do for the SCA patient?
bumps up Hbf in your blood
How do you screen for SCA?
sickledex, if positive, then do hemoglobin electrophoresis which detgermines the amount of Hbs in the blood.

Prenatal is done with amnio

NB test is done with PKU
What does HbS do to blood?
sickled hemoglobin HbS causes the RBC to stretch into a crescent or sickled shape under certain conditions.
How long do sickled RBC's live?
10-20 days

Old cells are collected in the spleen - can lead to splenic malfunction
In general, these two situations cause sickling...
oxygen deprivation or interference of transport of oxygen to cells

(exercise, outside, dehydration)
Why does cold cause sickling?
vasoconstriction narrows vessels, obstructs RBC, decreases blood flow, decreases oxygen, causes pain
The breakdown of sickled cells on a 10x faster rate than non sickled cells causes a predisposition to....
anemia and further hypoxia, which causes more sickling....viscious cycle
There are three types of sickle cell crisis
vaso occlusive (retic count high)

sequestration

aplastic (retic count low)
What is the deal with aplastic crisis of SCA?
stops making cells....this leads to low retic count
What is the deal with vaso occlusive crisis with SCA?
precipitated by dehydration, exposure to cold, acidosis or localized hypoxemia
What causes a vaso occlusive crisis in SCA?
stasis of blood...

Hand Foot Syndrome is common in infants
How do you treat sca crisis?
blood transfusions
oxygen
hydrate
pain management PCA, not PRN
Bed rest
reduce infections
If patient is experiencing a sequestration crisis with SCA, the blood is pooling in the liver and the spleen. What is important to realize about the spleen?
Spleen is infection control organ, so might treat with low abx prophylactically for a long time, and provide vaccines to help
Main important three things to prevent sickling:
1. Avoid infection
2. Prevent Dehydration
3. Avoid low oxygen supply
What MED is a no no for sca kids?
demerol - meperidine

Morphine is good and ok.

Demerol is DUMB! Seizures
What are the main things to monitor for when administering a blood transfusion?
allergic reaction
hemolytic reaction


itching, respiratory distress, fever, chills, hematuria, headache, chest pain, can progress to shock
What is main intervention to do if you determine there is a reaction during a blood transfusion?
stop the transfusion!!!!!

call md
give antihistamines
vitals
iv
In a vaso occlusive crisis what are your interventions?
hydration status
basal rate of med on PCA, lower pain level. get fentanyl
-diversional activities
What is the deal with hydroxyurea?
It is a treatment for Sickle cell anemia that increases HgF, so it decreases sickling
Describe Beta-Thalssemia Major
autosomal recessive

severe anemia - decreased production of matures cells, increased destruction of defective cells requiring frequent transfusion
What will CBC look like for Beta Thalassemia Major?
NORMAL IRON

low Hg & Hct
Normal Reticu count

microcytic hypochromic
What are two main problems with Beta Thalassemia Major?
chronic hypoxia

iron overload from transfussions (hemosiderosis)
What is hemosiderosis?
iron overload

-splenomegaly (often we remove spleen to stop RBC killing)

-Live enlargement, heart failure

-Growth and retardation

-BIG HEAD
What is tx for BTM?
blood transfussions often maybe q 2-3 weeks

Deferoxamine (to bind iron to get it out)

THESE KIDS WILL HAVE AN IMPLANTED PORT
What type of hemoglobin is increased in BetaT?
HgF
What is aplastic anemia?
Bone marrow fails to produce enough cells
What type of mans do you have with aplastic anemia?
Remember it is related to the low number of all cells, but if platelets low, then bleeding, petechiae and purpura

pallor, fatigue, fever bacterial infections
What are some tx for aplastic anemia?
BONE MARROW TRANSPLANT if other treatments don't work.

You can also replace RBC's and plateletes
What causes hemophilia?
hereditary deficiency of a blood factor essential for coagulation (factor #8)
CHristmas Deficiency is not #8, what is it?
number 9
How is hemophilia passed on?
x linked recessive
What lab test will be out of wack (CBC) with hemophilia?
PTT prolonged clotting

but PT normal
platelet count normal
Why is platelet count normal?
not a problem with platelets, not an anemia, but a factor deficiency
What is main intervention for hemophilia therapy?
stop bleeding and prevent crippling effects

drugs are used, factor replacements
What type of disease is vonWillebrand disease?
hereditary, bleeding disorder

vWF deficient (which is a carrier for factor8)

Autosomal dominant, both sexes
What is important when comparing vonWillebrand with hemophilia?
vonWilly is not as serious, no spontaneous bleeds, not found usually until a surgery or heavy menstration
What is tx for vonWilly?
same as hemophilia drug DDAVP...it increases clotting factors
ITP is all by itself. It is not anemia, not bleeding. Instead it is...
an autoimmune reaction that follows a VIRAL illness

spleen and lymph tissue make antibodies that TURN on their own platelet friends
What is diagnostic lab that is out of wack with ITP?
platelet count will be below 20,000
If you looked at platelets under a microscope for a person with ITP, what would you see?
not very many

large and immature
What is the term for large and immature platelets?
megakaryocytes

BIg Young Red Platelet Sticks
Who often presents with ITP?
2-5 year olds. This lines up with the big dumb platelet sticks. Think of a toddler holding a red long john donut. He has peteiche that doesn't blanche all over his face
What would treatment include for ITP?
r/o leukemia

Give IVIG and steroids

may take out spleen if doesn't recover

***BIG DEAL _ 90% resolve spontaneously
If ITP patient or anyone has a platelet count under 10,000 - what is your concern?
spontaneous bleeds
Make sure you do not give these drugs to ITP and hemophilia?
avoid aspirin, suppositories, injections, hep flush
With vonWilly you do not have __________ ____________.
spontaneous bleeds
If patient with hemophilia or ITP starts to bleed, what is tx?
control bleeding.

rest, ice, apply pressure for 10 minutes. elevate extremity
What type of activities can a hemophilia/ITP do?
nothing contact