Clinical Integration Session Flashcards
What are the 2 things that cause jaundice?
Liver disease
Hemolytic anemia
What 3 things do you expect to see on a lab report for hemolysis
Reticulocytosis (normocytic)
Increased LDH and unconjugated bilirubin
Decreased haptoglobin
2 causes of spherocytes on a smear
Immune mediated hemolytic anemia
Hereditary spherocytosis
Treatment for AIHA
Corticosteroids (prednisone)
Suppresses the immune system from making autoantibodies
Decreases reticuloendothelial activity
Should retics be low or high with
- Decreased production
- Increased loss or destruction
- Not high
2. High
4 most important tests
Retic count
MCV
WBC and platelet count
Blood smear
How does anemia of chronic disease work
Patients with inflammatory illnesses
Increased hepcidin so decreased iron absorption from the gut and iron is trapped in macrophages
Also relatively inadequate EPO and slightly shortened red cell survival
What is the diagnostic test for iron deficiency
Ferritin
What is the most common cause of iron deficiency in
- Adults
- Kids
- Bleeding
2. Nutritional deficiencies
Causes of normocytic anemia
Hemorrhage Hemolysis Early iron deficiency CKD Bone marrow suppression Bone marrow disorder (infiltration or failure - can also be macrocytic)
Bone marrow infiltration vs failure
Infiltration: no room to make blood cells (ex: acute leukemia)
Failure: no cells being made (ex: aplastic anemia)
Factors that argue against a bad bone marrow disorder
Acute anemia Reticulocytosis Microcytic anemia Normal WBC and PLT No worrisome cells on peripheral smear Obvious other cause for the anemia
3 causes of megaloblastic anemia
B12 deficiency
Folate deficiency
Meds that interfere with DNA synthesis
These anemias can be in multiple MCV categories. Which ones?
- Iron deficiency
- Anemia of chronic disease
- Bone marrow disorders
- Microcytic or normocytic
- Microcytic or normocytic (lower limit of normal)
- Normocytic or macrocytic
3 anemias where the reticulocytes will be high
Thalassemia
Hemorrhage
Hemolysis