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pancytopenia, whats the next step? |
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most common childhood cancer: |
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B ALL has __ WBCs, while T ALL has __ WBCs. |
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high WBC and anterior mediastinal mass: |
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normal CBC and anterior mediastinal mass: |
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Most common varieties of childhood cancers: |
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Definition
Left Brain MeN Women. 1. Leukemias (ALL and AML) 2. Brain tumors 3. Malignant Lymphomas 4. Neuroblastoma 5. Wilm's tumor |
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If neuroblastoma arises in the chest, it is in the __ mediastinum. |
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Difference b/w Wilm's tumor and Neuroblastoma: |
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Definition
- Wilm's tumor arises in the kidneys - Neuroblastoma arises in the neural crest cells in adrenal medulla or in sympathetic ganglion along the spine |
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2 most common intrabdominal tumors in kids: |
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Definition
- Wilm's tumor - Neuroblastoma |
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Less common childhood cancers: |
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Definition
BROGSHH - Bone - Retinoblastoma - Other: nasopharyngeal, thyroid - Germ cell tumors - Soft tissue (rhabdo-) - Hepatoma - Histiocytosis |
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2 most common bone tumors in children: |
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Definition
Osteosarcoma Ewing's sarcoma |
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What is the most common cancer in men ages 15-35? |
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Definition
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carcinomas are of __ origin. |
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Histiocytosis presentation: |
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Definition
- rash - eusinophilic granuloma - diabetes insipidus |
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liklihood of cure of childhood cancer: |
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overall leukemia survival rate: |
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T-cell leukemia survival rate: |
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Infant leukemia survival rate: |
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- Brain tumor 50% - Sarcomas 50% - Neuroblastoma 60% - Lymphomas 70% - Hodgkins 80% - Wilm's tumor 85% |
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Auer rods are pathognomic for ___. |
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Definition
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clinical presentation of leukemia: |
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Definition
- Bone marrow failure: anemia(low RBC), neutropenia, thrombocytopenia - Tissue infiltration: blast cells in blood, organomegaly, mass, pain |
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Definition
age 4 y/0
(no peak incidence with AML) |
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Prognostic factors for ALL B type: |
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Definition
ACE Won Some. - Age - CNS - Early response - WBC - Sex |
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childhood solid tumors from MC to LC: |
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Definition
1. Neuroblastoma 0.9/100,00 2. Wilm's tumor 0.75/100,00 3. Bone tumors 0.5/100,000 4. Rhabdomyosarcoma 0.4/100,000 |
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Do neuroblastomas usually cross the midline? |
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Definition
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Signs that make you consider CNS cord compression due to a spinal tumor: |
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Definition
- Morning vomiting - Head tilt - Midline back pain |
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Osteosarcoma is MC in the __ of __ bones. |
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Definition
- metaphysis of long bones |
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Ewing's sarcoma is MC in __ of long bones or in the __ __. |
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Definition
- diaphysis - axial skeleton |
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Osteosarcoma is MC in the __ of long bones, whereas Ewing's sarcoma is more common in the __ of long bones or the __ __. |
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Definition
- metaphysis - diaphysis - axial skeleton |
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Term
Clincal features of BONE MARROW FAILURE: |
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Definition
1. Anemia- NORMOcytic or MACROcytic 2. Thrombocytopenia 3. Leukopenia
2 or 3 of the above are RED FLAGS and HIGHLY SUGGESTIVE of bone marrow failure |
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Abdominal masses with worrisome characteristics: |
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Definition
- firm and fixed
Need to distinguish enlarged spleen (smooth with notch) from masses which tend to be irregular |
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characteristics of persistent lymphadenopathy that are concerning for cancer: |
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Definition
- lower cervical/supraclavicular nodes- rubbery, fixed |
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PE findings when to worry about cancer: |
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Definition
- Bone marrow failure: anemia (normo or macro), thrombocytopenia, Leukopenia, Neutropenia - Firm fixed abdominal mass - Firm fixed lower cervical/supraclavicular nodes - Specific neuro deficits, increased intracranial pressure - Exopthalmos/proptosis - White pupillary reflex - Unilateral knee/shoulder pain/swelling - Back pain - Migratory Multifocal Skeletal Pain- could be sign of bone marrow failure - Limp - Refusal to walk - Firm fixed mass in any location - Vaginal bleeding/mass - Firm scrotal mass - Hematuria - Nodular and/or purple skin lesions |
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Imaging Red Flags when to worry about cancer: |
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Definition
- Mediastinal masses/widening (NEVER NORMAL) - Persistent focal "pneumonia" (NEVER NORMAL) - Diffuse demineralization w/ or w/o growth arrest lines - Extra-skeletal calcification - Loss of cortical bone integrity - Mixed lytic/sclerotic lesions - Soft tissue mass with or w/o bone lesions - Pathologic fracture - Vertebral body compressions (seen with leukemia and neuroblastoma) |
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Vertebral body compression fractures may be seen with __ or __. |
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Definition
- leukemia - neuroblastoma |
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MC malignant brain tumor in children: |
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Definition
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CNS Red Flags that make you worry about cancer: |
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Definition
- Diffuse enlargement of the pons - Hydrocephalus with mass - Mid-line shift |
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Pertussis is the only infection that will cause __, all other bacterial infections cause ___. |
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Definition
- lymphocytosis (pertussis) - neutrophilia |
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Lab finding red flags that make you worry about cancer: |
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Definition
- BI- or pancytopenia - Unexplained leukocytosis - Marked neutrophilia without source - Lymphocytosis - Increased LDH - Increased Uric acid - Increased Ferritin - Increased Calcium |
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When NOT to worry about cancer: |
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Definition
- Microytic anemia (low MCV) - Isolated severe thrombocytopenia - Increased alkaline phosphate |
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Because __ __ increases in kids when they are growing quickly, this is not an indicator of malignancy. |
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Important questions to ask to the child with petechiae or purpura: |
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Definition
Sick or not: - Fever - Fatigue - Musckuloskeletal pain/swelling - Abdominal pain/swelling - Recent infection |
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2 things you definitely need to palpate for in child with petechiae or purpura? |
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Definition
- adenopathy - hepatosplenomegaly |
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Pt has petechiae/purpura, is not sick, has no constitutional symptoms,no MS findings, and has no HSM. What labs do you order? |
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Definition
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If patient with petechiae and purpura is sick or has history and physical suggesting systemic illness, then check: |
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Definition
- CBC - Blood bank specimen - UA - Chemistry panel- metabolic, renal, liver, LDH, and uric acid |
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Really sick pt with petechiae and purpura, what should be in ddx? |
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Definition
- sepsis - meningococcemia
Get pt urgently evaluated and treated |
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Other tests to be selectively done on sick pts with petechiae and purpura: |
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Definition
- PT, PTT, Coagulation screen - ANA and other autoimmune studies - ESR - Coomb's test |
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which pts with petechiae and purpura need bone marrow exm? |
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Definition
- those presenting UNLIKE ITP - sick - pancytopenia - HSM |
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BEFORE YOU TREAT A PT WITH WHAT YOU THINK IS ITP WITH STEROIDS, REMEMBER THERE IS A LOT MORE POTENTIAL TO DO HARM THAN GOOD. (may mask cancer) |
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Factors that make neutropenia urgent: |
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- Very young pt (age less than 3-6 months old) - Severe ANC < 200 - Fever > 38.3 (100.94 F) - Skin lesions suggetive hemtologenous process or favoring eccthyma |
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Other factors that raise concern with neutropenia: |
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Definition
VOPARMC - Vital sign changes (do NOT have to have fever to raise concern) - Oxygenation changes - Perfusion changes - Abdominal pain/tenderness - Rectal/perianal pain (warning sign of invasive infection) - Malignancy known, esp if chemo in the past 2 weeks - Central line present |
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Antibiotics for Fever and Neutropenia: |
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Definition
- Ceftazidine or Ceftipimine +/- Vancomycin +/- Aminoglycoside |
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which antibiotic do you NOT use for fever and neutropenia: |
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Definition
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Chronic Benign Neutropenia: |
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Definition
- ANC < 200-500 - Presents ages 9-18 months - Lasts months to years - Upper Respiratory Infections, usually superficial - Good prognosis, good treatment options |
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Retinal detachment issues may indicate: |
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Definition
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The philadelphia chromosome is associated with __ __ __. |
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Definition
chronic myelogenous leukemia (CML) |
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MC malignant brain tumor in children: |
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Definition
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only bacterial infection to cause lymphocytosis is ___ |
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Definition
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causes of an iron deficiency in infants less than 6 months: |
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Definition
- Prematurity - Small birth weight - Neonatal anemia - Perinatal blood loss - Hemorrhage |
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Iron deficient children over the age of 24 months (2 years), need to be evaluated for __ __. |
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Definition
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signs of sever iron deficiency anemia: |
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Definition
- mild iron deficiency is usually asymptomatic - severe> signs- pallor, fatigue, irritability, delayed motor development |
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Lab values expected with iron deficiency anemia: |
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Definition
Microcytic, Hypochromic, low Hemoglobin, low Hematocrit - MCV, Abosolute retic count, ferritin, and serum iron are decreased - TIBC and RDW are increased |
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Thalassemia lab findings: |
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Definition
- Normal to increased ferritin - Normal to increased serum iron - Normal TIBC - Increased erythrocytes - MCV/RBC < 13 - Less likely to have increased RDW |
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Recommended oral dose of elemental iron: |
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Definition
6 mg/kg/day in 3 divided daily doses
(mild iron deficiency can be treated with 2 mg/kg/day once daily before breakfast) |
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Ethnic groups more prone to sickle cell anemia: |
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Definition
CAMMI - Caribbean ancestry - African - Mediterranean - Middle Eastern - Indian |
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Symptoms of sickle cell, a hemolytic anemia, are caused by: |
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Definition
tissue ischemia and organ dysfunction caused by vaso-occlusion |
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When do sickle cell symptoms appear and why? |
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Definition
- symptoms are unusual before ages 3-4 months because there are high levels of fetal hemoglobin that inhibit sickling - moderately sever hemolytic anemia may present around 1 year of age |
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MC initial symptom of sickle cell anemia: |
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Definition
Dactylitis aka hand and foot syndrome occurs in up to 50% of children before age of 3 |
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Patient with sickle cell anemia are at greater risk for overwhelming infections with ___ ___, particularly __. |
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Definition
- encapsulated bacteria - pneumococci |
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signs and symptoms of sickle cell: |
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Definition
- Pallor - Fatigue - Jaundice - Gallstones - Splenomegaly (may have functional asplenia as early as 3 months> increased risk for infections, particularly pneumococci) - Splenic sequestration - Dactylitis - Strokes - Acute Chest Syndrome - Tissue damage from vaso-occlusion |
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Acute splenic sequestration with sickle cell anemia is characterized by: |
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Definition
- Sudden spleen enlargement - Pooling of red cells - Acute exacerbation of anemia - In some cases, shock and death |
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Acute Chest Syndrome associated with sickle cell anemia is characterized by __, __ __ __, and __ __ __ with __. This condition is caused by pulmonary __, __, or __ __ from __ __ __. |
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Definition
- Fever - Pleuritic chest pain - Acute pulmonary infiltrates with hypoxemia - infection - infarction - fat embolism from ischemic bone marrow |
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Sickle cell anemia lab findings: |
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Definition
- Hemoglobin 7-10 - Retic count increased - MCV normal to increased - Sickle and target cell on smear |
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Results on neonatal screening indicative of sickle cell disease require promt confirmation with __ __. |
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Definition
hemoglobin electrophoresis |
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MC indication for transfusion in SCD: |
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Definition
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when is RBC transfusion indicated for SCD: |
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Definition
- for acute exacerbations of anemia (aplastic crisis or splenic sequestration) - NOT indicated for chronic steady state anemia |
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Most common bleeding disorder of childhood: |
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Definition
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Definition
Viruses: RIPMEV - Rubella - Varicella - Measles - Parvovirus - Influenza - EBV
most pts recover spontaneously within a few months |
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Chronic ITP lasts greater than: |
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Definition
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Definition
- acute onset - multiple petechiae and ecchymosis - epistaxis - no other physical findings are usually present |
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Expected CBC findings with ITP: |
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Definition
- Markedly reduced platelet count (<50,000 and often < 10,000) - Platelets are of larger size suggesting accelerated production of new platelets - Normal WBC and diff and hemoglobin |
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Definition
- avoid ASA and other drugs that compromise platelet function - bleeding precautions: restrict physical contact sports and use helmet) |
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ITP with life-threatening bleed tmt: |
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Definition
- Platelet transfusion - Emergent splenectomy - Corticosteroids - IVIG |
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platelet transfusion should be avoided for ITP unless there is lifethreatening bleed. then transfuse platelets, emergent splenectomy, cs and IVIG |
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Definition
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Hemophilia A is a deficiency of factor __. It is more common in __ and is __ __ __. 1/3 of cases are due to a __ __. |
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Definition
- factor 8 - males - x-linked recessive - new mutation |
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distinguish b/w mild, moderate, and severe hemophilia A: |
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Definition
- mild (5-40% plasma factor VIII): bleeding only at times of trauma and surgery - severe (<1% plasma factor VIII activity): frequent spontaneous bleeding involving skin, mucous membranes, joints, muscles, and viscera |
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male newborn with fhx of hemophilia A, what should be done? |
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Definition
- cord blood sampling for factor VIII |
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MCC of disease related death with Hemophilia A: |
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Definition
Intracranial hemorrhage (occur spontaneously with moderate to sesvere deficiency) |
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MC complications of Hemophilia A: |
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Definition
- Hemarthroses, recurrent can cause joint destruction - Large intramuscular hematomas> compartment syndrome, muscle and nerve death - Intracranial hemorrhage |
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Tmt of non-life/non-limb threatening hemorrhage associated with Hemophilia A: |
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Definition
- 20-30 U/kg Factor VIII to acheive a rise in plasma factor VIII activity to 40-60% |
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mild hemophilia A may respond to : |
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Definition
Desmopressin> endothelial release of factor VIII and vWF
but most require factor VIII transfusion |
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Term
What is the most common INHERITED bleeding disorder among Caucasians with a prevalence of 1%? |
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Definition
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Term
70-80% of pts with vWD have CLASSIC TYPE 1 VON WILLEBRAND DISEASE, which is caused by a __ __ __ of von Willebrand factor. |
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Definition
- partial quantitative deficiency |
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Type 2 vWD is caused by a __ __ of vWF. |
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Definition
qualitative deficiency (dysfunctional) |
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Type 3 vWD is caused by a nearly _ __ of vWF. |
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Definition
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Term
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Definition
- increased bruising - increased epistaxis - bleeding prolonged with trauma/surgery - menorrhagia is often presenting sign in females |
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with hemophilia A, __ is prolonged and __ is normal. |
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Definition
- aPTT is prolonged - PT is normal |
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Term
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Definition
- aPTT sometimes prolonged - PT normal - PFA-100 or bleeding time prolonged |
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Platelet number may be decreased with vWFD type __. |
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Definition
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Factor VIII and vWF antigen are decreaed in types __ and __ vWFD but may be normal in type __ vWFD. |
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Definition
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Term
vWF is important for platelet adherence to the endotheliu |
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Definition
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Treatment for type 1 and 2 vWFD: |
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Definition
- Desmopressin acetate 0.3mcg/kg diluted in 20-30 mL saline, given over 20-30 minutes - this will increase plasma vWF by 3-5 fold and halt bleeding |
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