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78 Cards in this Set
- Front
- Back
What is normal RBC?
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3.9-5
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What is normal Hgb?
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10-13
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What is normal HCT?
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31-39
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What is normal for platelets?
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200-400,000
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Hct in the 20's is...
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low
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Another name for RBC
they live for _____ days |
erythrocytes
120 |
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Who removes old RBC from circulation?
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spleen
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What are baby RBC's called?
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reticulocytes
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Anemia is not a __________ but a term used to describe a __________ in the _________ carrying capacity of the blood.
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Anemia is not a DISEASE, but a term used to describe a DECREASE in the OXYGEN carrying capacity of the blood
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Lab values that indicate anemia:
Hg Hct |
Hg below 10
Hct below 31 |
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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 |
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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 |
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Why is there tachycardia with anemia?
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because heart is pumping faster in effort to get oxygen to cells
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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) |
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Iron Deficiency Anemia is the most common heme disorder in kids. It peaks in what age?
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6 months - 2 years
and reemerges as a problem in teens |
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Iron Deficiency Anemia causes:
preemies - toddlers - adolescents - |
premies - inadequate iron stores at birth
toddlers - excessive intake of milk Adolescents - poor dietary choices, menses |
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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 |
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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 |
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Severe Iron Deficiency anemia has the following manifestations.
Hgb below 7 |
pallor, heart murmur, spoon nails, hair falls out, speen enlargment,
FLOW MURMUR PALE |
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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 |
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What do the RBC's look like with iron deficiency anemia?
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microcytic, hypochromic
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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 |
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What is retic count? How does it pertain to anemia?
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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.
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What is supplement to be given for Fe deficient anemia?
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Ferrous sulfate
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What increases absorption of iron?
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orange juice
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How long do you continue therapy for iron deficiency anemia?
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continue therapy for AT LEAST 2 MONTHS after labs return to normal
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Side Effects of iron supplements
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n/v cramps
CONSTIPATION diarrhea black/green stools |
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Iron is absorbed better ___________ food.
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without
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What type of inheritance is SCA?
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autosomal recessive
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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 |
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What does Hydroxurea do for the SCA patient?
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bumps up Hbf in your blood
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How do you screen for SCA?
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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 |
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What does HbS do to blood?
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sickled hemoglobin HbS causes the RBC to stretch into a crescent or sickled shape under certain conditions.
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How long do sickled RBC's live?
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10-20 days
Old cells are collected in the spleen - can lead to splenic malfunction |
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In general, these two situations cause sickling...
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oxygen deprivation or interference of transport of oxygen to cells
(exercise, outside, dehydration) |
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Why does cold cause sickling?
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vasoconstriction narrows vessels, obstructs RBC, decreases blood flow, decreases oxygen, causes pain
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The breakdown of sickled cells on a 10x faster rate than non sickled cells causes a predisposition to....
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anemia and further hypoxia, which causes more sickling....viscious cycle
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There are three types of sickle cell crisis
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vaso occlusive (retic count high)
sequestration aplastic (retic count low) |
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What is the deal with aplastic crisis of SCA?
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stops making cells....this leads to low retic count
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What is the deal with vaso occlusive crisis with SCA?
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precipitated by dehydration, exposure to cold, acidosis or localized hypoxemia
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What causes a vaso occlusive crisis in SCA?
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stasis of blood...
Hand Foot Syndrome is common in infants |
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How do you treat sca crisis?
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blood transfusions
oxygen hydrate pain management PCA, not PRN Bed rest reduce infections |
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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?
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Spleen is infection control organ, so might treat with low abx prophylactically for a long time, and provide vaccines to help
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Main important three things to prevent sickling:
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1. Avoid infection
2. Prevent Dehydration 3. Avoid low oxygen supply |
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What MED is a no no for sca kids?
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demerol - meperidine
Morphine is good and ok. Demerol is DUMB! Seizures |
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What are the main things to monitor for when administering a blood transfusion?
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allergic reaction
hemolytic reaction itching, respiratory distress, fever, chills, hematuria, headache, chest pain, can progress to shock |
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What is main intervention to do if you determine there is a reaction during a blood transfusion?
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stop the transfusion!!!!!
call md give antihistamines vitals iv |
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In a vaso occlusive crisis what are your interventions?
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hydration status
basal rate of med on PCA, lower pain level. get fentanyl -diversional activities |
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What is the deal with hydroxyurea?
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It is a treatment for Sickle cell anemia that increases HgF, so it decreases sickling
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Describe Beta-Thalssemia Major
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autosomal recessive
severe anemia - decreased production of matures cells, increased destruction of defective cells requiring frequent transfusion |
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What will CBC look like for Beta Thalassemia Major?
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NORMAL IRON
low Hg & Hct Normal Reticu count microcytic hypochromic |
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What are two main problems with Beta Thalassemia Major?
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chronic hypoxia
iron overload from transfussions (hemosiderosis) |
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What is hemosiderosis?
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iron overload
-splenomegaly (often we remove spleen to stop RBC killing) -Live enlargement, heart failure -Growth and retardation -BIG HEAD |
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What is tx for BTM?
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blood transfussions often maybe q 2-3 weeks
Deferoxamine (to bind iron to get it out) THESE KIDS WILL HAVE AN IMPLANTED PORT |
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What type of hemoglobin is increased in BetaT?
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HgF
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What is aplastic anemia?
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Bone marrow fails to produce enough cells
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What type of mans do you have with aplastic anemia?
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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 |
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What are some tx for aplastic anemia?
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BONE MARROW TRANSPLANT if other treatments don't work.
You can also replace RBC's and plateletes |
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What causes hemophilia?
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hereditary deficiency of a blood factor essential for coagulation (factor #8)
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CHristmas Deficiency is not #8, what is it?
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number 9
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How is hemophilia passed on?
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x linked recessive
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What lab test will be out of wack (CBC) with hemophilia?
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PTT prolonged clotting
but PT normal platelet count normal |
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Why is platelet count normal?
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not a problem with platelets, not an anemia, but a factor deficiency
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What is main intervention for hemophilia therapy?
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stop bleeding and prevent crippling effects
drugs are used, factor replacements |
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What type of disease is vonWillebrand disease?
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hereditary, bleeding disorder
vWF deficient (which is a carrier for factor8) Autosomal dominant, both sexes |
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What is important when comparing vonWillebrand with hemophilia?
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vonWilly is not as serious, no spontaneous bleeds, not found usually until a surgery or heavy menstration
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What is tx for vonWilly?
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same as hemophilia drug DDAVP...it increases clotting factors
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ITP is all by itself. It is not anemia, not bleeding. Instead it is...
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an autoimmune reaction that follows a VIRAL illness
spleen and lymph tissue make antibodies that TURN on their own platelet friends |
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What is diagnostic lab that is out of wack with ITP?
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platelet count will be below 20,000
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If you looked at platelets under a microscope for a person with ITP, what would you see?
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not very many
large and immature |
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What is the term for large and immature platelets?
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megakaryocytes
BIg Young Red Platelet Sticks |
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Who often presents with ITP?
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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
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What would treatment include for ITP?
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r/o leukemia
Give IVIG and steroids may take out spleen if doesn't recover ***BIG DEAL _ 90% resolve spontaneously |
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If ITP patient or anyone has a platelet count under 10,000 - what is your concern?
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spontaneous bleeds
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Make sure you do not give these drugs to ITP and hemophilia?
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avoid aspirin, suppositories, injections, hep flush
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With vonWilly you do not have __________ ____________.
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spontaneous bleeds
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If patient with hemophilia or ITP starts to bleed, what is tx?
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control bleeding.
rest, ice, apply pressure for 10 minutes. elevate extremity |
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What type of activities can a hemophilia/ITP do?
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nothing contact
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