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Test your basic knowledge |
Hemeonc
Start Test
Study First
Subject
:
health-sciences
Instructions:
Answer 50 questions in 15 minutes.
If you are not ready to take this test, you can
study here
.
Match each statement with the correct term.
Don't refresh. All questions and answers are randomly picked and ordered every time you load a test.
This is a study tool. The 3 wrong answers for each question are randomly chosen from answers to other questions. So, you might find at times the answers obvious, but you will see it re-enforces your understanding as you take the test each time.
1. Intrinsic pathway coagulation defect and defect in platelet plug formation - most common inherited bleeding disorder - AD
Signs and sx of aplastic anemia
Extravascular
Tissue factor converst the VII and VIIa
VWD
2. What is the Ddx for a normocytic - normochromic anemia?
Hemolytic or non hemolytic - and then for the hemolytiuc - intravascular hemolysis or extravascular hemolysis
Hairy cell leukemia
Indirect coombs - agglutinate if serum anti RBC surface Ig
Beta chain absent - homozgote - severe anemia requiring blood transfusion - secondary hemochromatosis
3. What substance accumulates in porphyria cutanea
Histaminase and arylsulfatase
Uroporphyrin (tea colored urine)
Glycine and succinyl - coa
Anti Rh
4. Inherited deficiency of antithrombin; reduced inc in PTT after administration of heparin
Radiation/drugs - viral agents - fanconi's anemia - idiopathic may follow acute hepatitis
ATIII def
Glanzmann's throbmasthenia
PENTAD: neurologic sx - renal sx - fever - thrombocytopenia - MAHA
5. What are some causes of warm agglutinin autoimmune hemolytic anemia?
Dec plasma volume
AML
Nl PT - elevated PTT - intrinsic pathway defect
SLE - CLL - alpha methyldopa
6. Aplastic crisis after parvovirus - autosplenectomy - salmonella osteomyelitis - painful crisis - renal papillary necrosis - splenic sequestration
Complications of sickle cell anemia
Leukemia
Megaloblastic anemia (also hypersegmented PMNs - marrow failure)
Lymphoma
7. What is the presenting scenario for TTP?
MGUS - monoclonal gammopathy of undetermined significance
PENTAD: neurologic sx - renal sx - fever - thrombocytopenia - MAHA
T(12;21)
Fibrinogen
8. What happens in beta thal major?
Aplastic anemia - pancytopenia
MAHA
B cells
Beta chain absent - homozgote - severe anemia requiring blood transfusion - secondary hemochromatosis
9. What do auer rods stain with
CML
Peroxidase
Lung disease - congenital heart diseaes - and high altitude
Porphobilinogen deaminase aka uroporphyrinogen I synthase
10. RBCs damagaed from passing through obstructed - narrowed vessel lumina
MAHA
20 to 40
Blod - tissue - MACS
Positive osmootic fragility test and splenectomy
11. tennis rackets on EM
Peroxidase
Burkitt lymphoma
Lymphoma
Birbeck granules
12. Megakaryocytosis
B antigena and A antibodes
Kidney - Gi - microcytic anemai in both - kids = mental retardation and adults = headache - memory loss - demyelination
40 to 50
Essential thrombocytosis
13. What percentage of WBCs are basophils - and What is found in their basophilic granules?
< 1% - heparin - histamine - LTD-4 - other vasoactive amines
Fc
Pos
Lysosomes
14. What is the age group most commonly affected by multiple myeloma
Parvovirus
Allogenic bone marrow transplant - RBC/platelet transfusion - C- GSF - or GM- CSF
40 to 50
Inc vasodiltion - inc perm - inc pain
15. Defect in platelet to platelet adhesion - receptor - disorder - platelet count and bleeding time
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16. Macro - ovalocyte
Collagen - BM - activated platelets
Myelofibrosis (marow is crying being its fibrosed'
Megaloblastic anemia (also hypersegmented PMNs - marrow failure)
Neoplastic - asthma - allergic processes - collagen vacsular disease - parasites
17. Spherocyte
Langerhans cell histiocytosis
No antigen - both antibodies
Hereditary spherocytosis - autoimmune hemolysis
Histaminase and arylsulfatase
18. What does STOP Making New Thrombi stand for
Inc bleeding time - microhemorrhage: mucuous membrane bleeding - epitaxis - petechiae - purpura - possible thrombocytopenia
DNA synth impaired - maturation of nucleus delayed relative to maturation of cytoplasm
Peripheral neuropathy - posterior columns (vibration/proprioception) - lateral corticospinal (spasticity) - dementia
Causes of DIC: Sepsis (gram neg) - Trauma - Obstetric complications - acute Pancreatitis - Malignancy - Nephrotic syndrome - Tranfusion
19. What virus is associated with 50% of Hodgkin lymphoma
DIC
EBV
Inc UCB
Porphyrias
20. What is HbH
Beta 4
Thrombotic thrombocytopenic purpura
Blood
DIC - TTP- HUS - SLE malignant HTN - prostethic heart valves - aortic stenosis
21. Where does All spread
Indirect coombs - agglutinate if serum anti RBC surface Ig
Orotic aciduria
Hydroxyurea - bone marrow transplant
CNS and testis
22. t(15;17)
M3 AML (acute promyelocytic leukemia)
Inc bleeding time - microhemorrhage: mucuous membrane bleeding - epitaxis - petechiae - purpura - possible thrombocytopenia
Tissue
Lacunar in nodular sclerosing variant
23. What are the etiologies of B12 def
Insufficient intake as with strict vegans - malabsorption as in crohns - pernicious anemia - diphyllobothrium
Dimercaprol and EDTA 1st line of treatment - succimer for kids - it sucks to be a kid who eats lead
Examples of oxidative stress
Complications of sickle cell anemia
24. Oxidation of iron - denatured hemoglobin preceipitation damage to RBC membrane - formation of bite cells
TPA - cleavage of fibrin mesh
Africa = Jaw lesion - US = pelvis or abdomen
Ankryin - band 4.1 or spectrin
Heinz bodies - seen in alpha thal and G6PD
25. anisocytosis
VWF carries/protects factor VIII
Varying sizes
B cells
Inflammation leads to inc hepcidin causing a dec in release from iron from macs: dec serum fe - dec TIBC - inc ferritin
26. What distinguishes multiple myeloma fromk Waldenstroms macroglobulinemia?
AB - no antibodies
No lytic bone lesions in WM
Hb Barts - gamma4 in defect in all 4 alpha genes
Bleeding - malnutrition/absorption - inc demand pregs
27. S-100 and CD1a with birbeck granules
Langerhans cell histiocytosis
Cold - seen in CLL - mycoplasma pneumoniae infections or infectious mononucleosis
Megakaryocytes
DDAVP (desmopressin) which releases stored vWF stored in endothelium
28. What is the therapy for CML (philly chrom)
Imatinib - anti bcr abl
B cells
Mycosis fundgoides/Sezary syndrome
Cromolyn sodium
29. Back pain - hemoglobinuria
Inhibits thrombin - ixa - xa - xiia - and activated by heparin
Inc
Cromolyn sodium
Common a few days after oxidative stress in a pt with G6PD
30. Schisotcyte - helmet cell
Intrinsic - all factors except - VII - XIII
Langerhans cells
DIC - TTP/HUS - traumatic hemolysis
Up - down - up
31. What is the main source of energy in RBCs
XIIa activates kallikrein - which activates plasmin (and converts HMWK to bradykinin
Parvovirus
90% anearobically from glucose to lactate - 10% from HMP shunt
Essential thrombocytosis
32. Drug that inhbits the GpIIb/IIIa directly
Abciximab
Ankryin - band 4.1 or spectrin
CML
Protoporphyrin
33. What does ectopic EPO produce
Hereditary spherocytosis - G6PD - sickle cell
Degrades fibrin mesh and converts C3 to C3a
Protein C or S deficiency
Inappropriate absolute with inc RBCs and EPO
34. Which immunoglobulin is involved in warm agglutination?
Factor V resistant to activated protein C's inhibition
Antigen - antibody
< 1% - heparin - histamine - LTD-4 - other vasoactive amines
IgG - Warm is GREAT
35. Impaired synthesis of DAF leading to inc complement mediated desctruction of RBCs via the GPI ancho
TAIL - thalassemias - anemia of chronic disease - iron def - lead poisoning
Mantle cell lymphoma
Paroxysmal nocturnal hemoglobinuria
Down - down - up
36. What does antithrombin do and What activates it?
Inhibits thrombin - ixa - xa - xiia - and activated by heparin
Protoporphyrin
Dec
Spleen
37. discrete tumor masses arising from lymph nodes
Sideroblastic anemia
Birbeck granules
Uroporphyrin (tea colored urine)
Lymphoma
38. inc LDH - jaundice
AB - no antibodies
Extravascular hemolysis
Sideroblastic anemia
Multiple myeloma
39. normal RBCs added to patient's serum
Bleeding - malnutrition/absorption - inc demand pregs
Mantle cell lymphoma
Indirect coombs - agglutinate if serum anti RBC surface Ig
Malaria - Babesia
40. What is their role?
EBV
Heinz bodies - seen in alpha thal and G6PD
Inducers of primary antibody response
90% anearobically from glucose to lactate - 10% from HMP shunt
41. What does ADP do?
Varying sizes
Helps platelts adhere to endothelium
40 to 50
Dimercaprol and EDTA 1st line of treatment - succimer for kids - it sucks to be a kid who eats lead
42. Blood type B
Petechiae
Lysine for glutamate at position 6
B antigena and A antibodes
Incactivates II - VII - IX - X - XI - XII
43. What happens in betal thal minor?
Indirect coombs - agglutinate if serum anti RBC surface Ig
Beta chain underproduced - asymptomatic - heterozygote
Beta chain absent - homozgote - severe anemia requiring blood transfusion - secondary hemochromatosis
B6 therapy (pyrodixine)
44. What is the are the presenting symptoms of lead poisoning in kids and adults
Inc
Kidney - Gi - microcytic anemai in both - kids = mental retardation and adults = headache - memory loss - demyelination
ATIII def
Inc RBC - dec O2 sat - inc EPO
45. hypocellular bone marrown tih fatty infiltration
DNA synth impaired - maturation of nucleus delayed relative to maturation of cytoplasm
Aplastic anemia - pancytopenia
Beta chain absent - homozgote - severe anemia requiring blood transfusion - secondary hemochromatosis
ADP and Ca
46. What is the ddx for aplastic anemia
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47. What substance is Fe added to to yield heme
Splicing sites and promotor sequences
Beta chain underproduced - asymptomatic - heterozygote
Beta 4
Protoporphyrin
48. What are the pro aggregation factors?
Protoporphyrin
Varying shapes
B12/folate def
TXA2 - dec blood flow - inc platelet aggregation
49. Target cell
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50. What role does antithrombin play?
Peripheral neuropathy - posterior columns (vibration/proprioception) - lateral corticospinal (spasticity) - dementia
Aplastic anemia - pancytopenia
Inappropriate absolute with inc RBCs and EPO
Incactivates II - VII - IX - X - XI - XII