June 8th Flashcards
WAGR Complex
Wilms Tumor
Aniridia
GU malformations
Retardation (motor and mental)
Metabolic panel in young asthmatic
They’re on a Beta agonist which would shift K into cells
IF: Granular pattern of immune complex deposition LM: diffuse capillary thickening
Membranous glomerulonephritis
Diffuse Proliferative glomerulonephritis (Lupus nephritis)
Remember membranous = thickening of BM & diffuse proliferative!
IF: Granular pattern of immune complex deposition LM: hyper cellular glomeruli
Acute PSGN
Hypercellularity = inflammatory cells
LM: segmental sclerosis and hyalinosis
Focal Segmental Glomerulonephritis
IF: IgG, IgM, IgA and C3 deposition in the mesangium
Acute PSGN
Anticoagulant during pregnancy
Heparin/LMWH
Heparin antidote
Protamine sulfate
Warfarin antidote
Fresh frozen plasma
Vit K oral
Fibrinolytic agent (streptokinase,urokinase, alteplase) antidote
Aminocaproic Acid
Veteran describing war in detail with no emotion
Isolation
A child abuser was himself abused as a child
Identification
Underlies all other defense mechanisms
Repression
May lead to multiple personalities
Dissociation
Deficiency of Aldolase B
Fructose intolerance
Deficiency of cystathione synthase
Homocysteinuria
Galactose 1 phosphate uridyltransferase deficiency»_space; intellectual disability, hepatosplenomegaly and cataracts
Classic Galactosemia
Deficient in tyrosine
Albinism
Protein responsible for biconcave shape and flexibility of RBCs
Spectrin
Anisocytosis
RBC of varying sizes
Poikilocytosis
RBC of varying shapes
Reticulocyte
Immature RBC
Acanthocyte
Spur cells
Liver disease & Abetalipoproteinemia
Irregular spiked
Basophilic stippling
Lead poisoning
Inhibition of RNA breakdown
Degmacyte
Bite cell
G6PD deficiency
Echinocyte
Burr cell
Uremia (renal failure)
Regular spikes
Ringed sideroblasts
Excessive iron due to disorders of heme synthesis found in bone marrow
Schistocyte
Helmet cell
Fragmented RBCs
DIC TTP/HUS HELLP
Mechanical hemolysis
Dacrocyte
Teardrop cell
Myelofibrosis and bone marrow infiltration
Target cells
"THAL" Thalassemia Hemoglobin C disease Asplenia Liver disease
Heinz bodies
Oxidized Hb fragments
G6PD deficiency
Many in one cell»_space; “Heinz 57 ketchup”
Howell-Jolly bodies
Basophilic nuclear remnant found in RBCs only 1 per cell
Asplenic patients
Sickle cell disease
How does mom/fetus transfer O2?
Fetal Hb (alpha2gamma2) has less affinity for 2,3-DPG which gives it a higher affinity for O2 allowing the Fetal Hb to extract O2 from the maternal Hb (alpha2beta2)
Rate limiting enzyme of heme synthesis
ALA-synthease
Acute Intermittent Porphyuria
Defect in porphobilinogen deaminase/uroporphyrinogen I synthase
Porphyria Cutaenous Tarda
Defect in URO decarboxylase
Sites of erythropoiesis in embryo/fetal?
"Young Livers Synthesize Blood" Yolk sac Liver Spleen Bone marrow
Causes of polycythemia
EPO producing tumors “Potentially Really High Hematocrit” (Pheo, RenalCC, Hepatic CC, Hemangioblastoma)
Polycythemia vera
Trisomy 21
Elevated altitude (chronic hypoxia)
Lead poisoning Sx
Encephalopathy Memory loss Renal failure Wrist and foot drop Lead lines in bones and gums Basophilic stippling and macrocytic anemia
Hexokinase vs. Glucokinase
Hexokinase find everywhere Insulin independent Low Km/ Low Vmax Glucokinase only in liver and B cells of pancreas Induced by insulin High Km/High Vmaz
Inhibitor of alcohol dehydrogenase
Fomepizole
Inhibitor of aldehyde dehydrogenase
Disulfram
Iron poisoning inhibits which enzymes in Heme synthesis?
ALA dehyrdataes
Ferrochelatase
Test to dx beta thalassemia minor
Hb electrophoresis
Increased HbA2
Iron deficiency anemia in pt >50
Rule out colon cancer
Which has neuro deficits B12/B9?
B12 has peripheral neuropathy
Folate does not
Megaloblastic anemia with increased methylmalonic acid
B12 deficiency
Megaloblastic anemia with no hyperammonemia
Orotic aciduria
Refractory to B12 and folate
Hypo cellular bone marrow with fatty infiltration
Aplastic anemia
Causes of aplastic anemia
Radiation
Drugs (benzene, chloramphenicol, alkylating agents)
Viral (parvo B19, HIV, EBV)
Following acute hepatitis
Cause of anemia of chronic disease
Increased inflamm»_space; increased hepcidin»_space; binds ferroportin on intestinal mucosa and macrophages inhibiting iron transport
Labs for anemia of chronic disease
decreased serum iron
decreased TIBC
normal or increased ferritin
normal transferrin saturation >18%
Hair on end skull appearance
Beta thalassemia
Sickle cell
(due to marrow proliferation)
Microcytic anemia reversible with B6
Sideroblastic anemia
Anemia in Mediterranean population
Beta thal
Anemia in African/Asian
Alpha thal
Beta thalassemia major increased type of Hb
HbF (ay)
Beta thalassemia minor increased type of Hb
HbA2 (alpha delta)
Thalassemia with target cells
Beta thalassemia
Difficulty swallowing
Glossitis
Microcytic anemia
Plummer Vinson Syndrome
Iron deficiency anemia
Alpha thalassemia type
Missing 1 allele = Asx
Missing 2 allele = Alpha thal trait»_space; minimal anemia
Missing 3 allele = HbH disease very little alpha, excess B forms B4 = HbH
Missing 4 alleles = Hb Barts no alpha globin so forms y4, hydrops fetalis»_space; incompatible with life
Hb Barts
Alpha thal with 4 allele deletion
y4
HbH disease
Alpha thal with 3 allele deletion
B4
RLS of beta oxidation of fatty acids
Carnitine acyltransferase 1
Cofactors for pyruvate dehydrogenase
What other enzyme uses the same cofactors
"TLC For Nancy" TPP Lipoid acid CoA FAD NAD+ Also needed for alpha ketoglutarate
Result of glycolytic enzyme deficiency
Hemolytic anemia
Result of pyruvate dehydrogenase
Neuro deficits
Tx of sickle cell anemia
Hydroxyurea
Hams test +
Paroxysmal nocturnal hemoglobinuria
increases pH to increase complement and cause red cell lysis
+ osmotic fragility test
hereditary spherocytosis
Causes of sickle cell crisis
Low O2
Acidosis
Dehydration
Sickle cell osteomyelitis
Salmonella
Sickle cell mutation
Glutamic acid (Glu)»_space; Valine (Val) at position 6 for the B chain
HbC mutation
Glutamic acid (Glu)»_space; Lysine (Lys) at position 6 for the B chain
Cold agglutinins Ab
IgM
Warm agglutinins Ab
IgG
Causes of microangiopathic hemolytic anemia
DIC
TTP/HUS
SLE
Malignant HTN
Causes of macroangiopathic hemolytic anemia
Prosthetic heart valve
Aortic stenosis
Direct coombs test
Checking for Ab on the RBC with Ab which cause RBC agglutination
Indirect coombs test
Checking for Ab in the serum to normal RBC
Test blood prior to transfusion
Cause of cold agglutinins
EBV
Mycoplasma
CLL
Cause of warm agglutinins
HIV/EBV
SLE
CLL & NH Lymphoma
Congenital immune abnormalities
Waterhouse Freidrichson caused by
What does it lead to
Caused by meningococcemia
Leads to adrenal insufficiency (after the adrenal hemorrhage)
Causes of hemolytic anemia in G6PD
"Spleen Purges Nasty Inclusions From Damaged Cells" Sulfonamides Primiquine Nitrofuratoin (UTI) INH (TB) Fava beans Dapsone (Leprosy) Chloroquine
Causes of hemolytic anemia in G6PD
"Spleen Purges Nasty Inclusions From Damaged Cells" Sulfonamides Primiquine Nitrofuratoin (UTI) INH (TB) Fava beans Dapsone (Leprosy) Chloroquine
Pentad of TTP
"Nasty Fever Torched His Kidneys" Neuro Sx Fever Thorombocytopenia Hemolysis/Anemia Kideny insufficiency
Triad of HUS
Thrombocytopenia
Hemolysis
Renal insufficiency
Triad of HUS
Thrombocytopenia
Hemolysis
Renal insufficiency
Causes of DIC
"STOP Making Thrombi" Sepsis (gram -) Trauma Obstetric complications (amniotic fluid emboli and abruptio placenta) acute Pancreatitis Malignancy Transfusion (Nephrotic syndrome has been excluded)
Labs in DIC and PT/PTT/BT/PC
PT/PTT/BT are all increased
PC is decreased
increased fibrin split products (D-dimer)
Decreased fibrinogen***
Labs in DIC and PT/PTT/BT/PC
PT/PTT/BT are all increased
PC is decreased
increased fibrin split products (D-dimer)
Decreased fibrinogen***
2 yr old girl with increase in abdominal girth, failure to thrive and skin/hair depigmentation
Kwashikor
Enzyme deficient in Essential Fructosuria
Fructokinase
Enzyme deficient in Classic Galactosemia
Galactose 1 phosphate uridytransferase
Thyroid cells with optically clear nuclei
Papillary cell cancer of the thyroid
Hemosiderinuria + Thrombosis
Paroxysmal nocturnal hemoglobinuria
Hemosiderinuria + Thrombosis
Paroxysmal nocturnal hemoglobinuria
Cancer most commonly associated with noninfectious fever
Hodgkin lymphoma
Large B cells with bilobed nuclei and prominent owl eye inclusions
Reed Sternberg cells of Hodgkin lymphoma
Most common lymphoma in US
Diffuse Large B Cell Lymphoma
Most common lymphoma in kids
Lymphoblastic lymphoma
Age of Hodgkin lymphoma
Bimodal distribution 20/65
Associated with long term celiac disease
Enteropathy/Intestinal T Cell Lymphoma
Associated with Sjogrens, Hashimoto’s thyroiditis and H. pylori
MALToma (B cell)
Starry sky pattern
Burkitts
Follicular lymphoma mutation
14,18 BCL-2 on 18
Burkitt lymphoma mutation
8,14
c-myc on 8
Mantle cell lymphoma mutation
11,14
Cyclin D1 on 11