Glen Shared "Heme-onc" - 78 Picmonics
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Heme-onc
Clotting Overview
- Characteristics
- Endothelial Cells are Damaged
- Platelets Respond to Exposed Collagen and Stick
- Platelets Release Recruiting Factors
- More Platelets are Attracted
- Soluble Fibrinogen Turns to Insoluble Fibrin
- Fibrin Seals the Clot
- Clot Dissolves
- Liver Produces Clotting Factors
2 mins
Coagulation Cascade
- Secondary Hemostasis
- Intrinsic Pathway
- Partial Thromboplastin Time (PTT)
- Heparin
- Extrinsic Pathway
- Prothrombin Time (PT)
- Warfarin
- Common Pathway
- Thrombin
- Convert Fibrinogen to Fibrin
- Stabilizes the Platelet Plug
2 mins
Anemia Lab Values
- Iron Deficiency Anemia
- Serum Iron Decreased
- Transferrin Increased
- Ferritin Decreased
- % Transferrin Saturation Decreased
- Pregnancy and OCP Use
- Serum Iron Normal
- Transferrin Increased
- Ferritin Normal
- % Transferrin Saturation Decreased
- Anemia of Chronic Disease
- Serum Iron Decreased
- Transferrin Decreased
- Ferritin Increased
- % Transferrin Saturation Decreased or Normal
- Hemochromatosis
- Serum Iron Increased
- Transferrin Decreased
- Ferritin Increased
- % Transferrin Saturation Increased
3 mins
Microcytic Anemia Causes
- MCV < 80
- Causes
- Thalassemias
- Chronic Disease or Illness
- Lead Toxicity
- Late Iron Deficiency
- Sideroblastic Anemia
1 min
Iron (Ferrous Sulfate)
- Mechanism
- Ferrous Salts
- Indications
- Anemia
- Side Effects
- GI Distress
- Nausea and Vomiting
- Dark Stools
- Considerations
- Take Between Meals
- Liquid can Stain Teeth
- Keep out of Reach from Children
- Caution with GI Disorders
- Avoid Antacids
3 mins
Iron Deficiency Anemia
- Causes
- Malnutrition/Malabsorption
- Hemorrhage
- Signs
- Microcytic, Hypochromic Anemia
- Decreased Heme Synthesis
- Labs
- Decreased Reticulocytes
- Decreased Ferritin
- Increased Red Cell Distribution Width (RDW)
- Poikilocytosis
- Anisocytosis
- Increased Central Pallor
2 mins
Plummer-Vinson Syndrome
- Triad of Symptoms
- Dysphagia
- Esophageal Webs
- Glossitis
- Iron Deficiency Anemia
- Association
- Squamous Cell Cancer of Esophagus
1 min
Iron Antidote
- Antidote
- DeFEroxamine
23 secs
Alpha-Thalassemia
- Alpha alleles on chromosome 16
- Microcytic, Hypochromic Anemia
- 2 Deletions
- Trans deletion more common in blacks
- Alpha-globin cis deletion more common in asians
- Three deletions
- 3 deletions yields B4 (HbH)
- 4 deletions
- 4 deletions = hydrops fatalis
- Hb Barts
Beta Thalassemia
- Mechanism
- Microcytic, Hypochromic Anemia
- Mediterranean Populations
- Decreased Beta-Globin
- Beta-Thalassemia Minor
- Increased HbA2
- No Intervention
- Beta-thalassemia Major
- Blood Transfusions
- Hemochromatosis
- Crew-cut on Skull X-Ray
- Diagnosis
- Electrophoresis
2 mins
Lead Antidotes
- Antidotes
- Dimercaprol
- CaEDTA
- Succimer
39 secs
Macrocytic Anemia Causes
- MCV > 100
- Megaloblastic
- B12 Deficiency
- Folate Deficiency
- Orotic Aciduria
- Non Megaloblastic
- Alcoholism
- Liver Disease
- Reticulocytosis
2 mins
Folate Deficiency
- Clinical Features
- Macrocytic Anemia
- Megaloblastic Anemia
- Etiologies
- Malabsorption
- Dietary
- Tea and Toast
- Alcoholics
- Medication-induced
- Methotrexate
- Trimethoprim
- Increased Requirement
- Hemolytic Anemia
- Pregnancy
2 mins
Vitamin B12 (Cobalamin) Mechanism and Deficiency
- Mechanism
- Cobalamin
- Large reserve pool in the liver
- Homocysteine to methionine
- Methylmalonyl CoA to succinyl CoA
- Deficiency Signs and Symptoms
- Macrocytic Megaloblastic Anemia
- Hypersegmented Neutrophils
- Neurologic defects
- Posterior column
- Lateral corticospinal tract
- Spinocerebellar tract
5 mins
Vitamin B12 (Cobalamin) Deficiency Causes
- Causes
- Vegans
- Pernicious Anemia
- Gastric Bypass Surgery
- Malabsorption
- Sprue
- Enteritis
- Crohn's Disease
- Diphyllobothrium latum
4 mins
Orotic Aciduria
- Pathophysiology
- Autosomal Recessive
- Defect in UMP Synthase
- De Novo Pyrimidine Synthesis Pathway
- Symptoms
- Increased Orotic Acid in Urine
- Megaloblastic Anemia
- No Response to B12 or Folate
- Non-Hyperammonemic
- Failure to Thrive
- Treatment
- Oral Uridine Monophosphate
2 mins
Normocytic Hemolytic Anemia Causes
- Intrinsic Hemolytic
- Hereditary Spherocytosis
- RBC Enzyme Deficiency
- Hemoglobin C Defect
- Paroxysmal Nocturnal Hemoglobinuria (PNH)
- Sickle Cell Anemia
- Extrinsic Hemolytic
- Autoimmune
- Microangiopathic
- Mechanical Destruction
- Prosthetic Cardiac Valves
- Infection
- Snake Venom
2 mins
Normocytic Nonhemolytic Anemia Causes
- MCV 80-100
- Nonhemolytic
- Anemia of Chronic Disease/Inflammation
- Aplastic Anemia
- Chronic Kidney Disease
- Early Iron Deficiency
1 min
Hereditary Spherocytosis Disease
- Northern Europeans
- Mechanisms
- Autosomal Dominant
- Spectrin/Ankyrin Deficiency
- Spherocyte Formation
- Hemolytic Anemia
- Symptoms
- Bilirubin Gallstones
- Jaundice
- Splenomegaly
3 mins
G6PD Mechanism
- Turns NADP+ to NADPH
- NADPH Used by Glutathione Reductase
- Detoxifies Free Radicals and Peroxides
- X-linked Recessive
2 mins
