SBL 2 Flashcards
(30 cards)
Mentzer index
>13 = iron deficieny <13 = beta thalassemia
How to calculate mentzer
=MCV/RBC
kasabach meritt syndrome
thrombocytopenia and hypofibrinogenemia secondary to giant hemangioma and associated intravascular coagulation
most common cancer among children?
leukemia
most common cancer in adolescent?
lymphoma
Most common cancer in younger children?
leukemia
Hodgkin lymphoma is most common cancer in what age?
15-19
Best test to diagnose HL
should undergo chest radiography to rule out a mediastinal mass
Is HL or NHL more common in adolescents?
HL
What does NHL survival depend on?
- pathologic type
- tumor burden at diagnosis as reflected in LDH
- presence or absence of CNS disease
- sites of mets
How do you calculate absolute neutrophil count?
((%neutrophils+%bands) *WBC) / 100
What is moderate neutropenia in terms ANC?
500-100
Describe severe congenital neutropenia (kostmann syndrome)
life threatening pyogenic infection in infancy due to impaired myeloid differentiation caused by maturational arrest of neutrophil precursors.
- AR
- increased risk of AML
Describe cyclic neutropenia
- cyclic fevers, oral ulcers, gingivitis, periodontal disease, recurrent bacterial infections due to a defect in stem cell reg defect
- sporadic or AD
- No increased risk of malignancy
Describe shwachman-diamond syndrome
- triad of neutropenia, exocrine pancreas insuficcienct, and skeletal abnormalities
- AR
- Increased risk for myelodysplastic syndrome or leukemia
Most common tumor of infancy?
hemangioma
If there is a cutaneous neuroblastoma what will you see? How about on labs?
Blueberry muffin. Increased VMA and HVA
What is the most common primary renal tumor of childhood?
Wilms tumor
Describe Beckwith Weidmann
Wilms tumors
Macroglossia
Muscle hemihypertrophy
Organomegaly
What shifts o2 curve to the right?
Increased 2,3 DPG, decreased pH, increased temp, increased o2.
What shifts an o2 curve to the left?
Increased HbF, increased CO. Also, opposite of what curves it to the right.
What is the physiologic nidar in children?
At 2 months old, normal decrease in hemoglobin and hematocrit. Can be scary once you see infections
What is the cause of congenital pure red cell aplasia?
diamond blackfan syndrome
Describe diamond Blackman syndrome
macrocytic anemia with low reticulocyte count
