Flashcards in RBC's Robbins, Hematopath Rubin's Deck (10):
Robbins 40: Patient with a microcytic anemia, namely iron deficiency, what is the most sensitive and cost-effective test you can order?
Ferritin concentration is a measure of storage iron because it's derived from total body storage pool in the liver, spleen, and marrow; with severe liver disease, can have an elevated serum ferritin level because of its release from liver stores
Robbins 46: Myelophthisic anemias can be caused by what?
A metastatic tumor (in this case prostatic adenocarcinoma) or also by infections)
Rubin's 11: What does the figure show? Why did this happen?
Elliptical erythrocytes; HE involves the cytoskeleton of the erythrocyte, specifically spectrin, spectrin-ankyrin binding, protein 4.1, glycophorin C
Rubin's 15: Why do we see these nuclei?
Hemolytic disease of the newborn: histoincompatibility between the mother and developing fetus (maternal IgG alloantibodies cross placenta, causing complement-mediated hemolysis of fetal erythrocytes, resulting in release of erythroid precursors.
Rubin's 22: Why does the figure look like this?
Chronic liver disease (increased free cholesterol deposited within cell membrane) can lead to acanthocytes (RBCs with spiny projections)
Rubin's 60: When does a hemolytic transfusion reaction occur?
Grossly incompatible blood administered to patients with preformed alloantibodies, usually a clerical error; massive hemolysis of transfused blood may be associated with severe complications, including hypotension, renal failure, and even death
Rubin's 61: presence of myeloblasts in peripheral blood is
acute myelogenous leukemia; accumulation of immature myeloid cells lacking potential for further differentiation and maturation, which leads to suppression of normal hematopoiesis
Rubin's 64: acute suppurative lymphadenitis occurs
in lymph nodes that drain a site of acute bacterial infection; they are tender due to distention of the capsule
Rubin's 66: _____ is a neoplasm of thymic epi cells; what can this lead to?
Thymoma; myasthenia gravis