Chapter 37 Care of pt w/ Hematologic Problems Flashcards
Exam 2 (260 cards)
anemia
a reduction in the number of red blood cells (RBCs), the amount of hemoglobin, or the hematocrit (percentage of packed RBCs per deciliter of blood).
apheresis
the withdrawal of whole blood and removal of some of the patient’s blood components followed by reinfusion of the plasma back into the patient
blast phase cells
immature white cells that are dividing rapidly
engraftment
the successful “take” of the stem cells transplanted into the recipient
erythrocytes
red blood cells (RBCs)
glottitis
a smooth, beefy-red tongue
Hemoglobin A (HbA)
normal adult hemoglobin with two normal A chains and two normal B chains
Hemoglobin F (HbF)
the main type of hemoglobin in the fetus, having two normal A chains and two normal gamma chains that bind oxygen more tightly than does hemoglobin A or S
Hemoglobin S (HbS)
the hemoglobin of sickle cell disease in which there are two normal A chains and two abnormal beta chains that fold poorly, causing the red blood cell to assume a sickle shape under low-oxygen conditions
Hemolytic
blood destroying
hypercellularity
cellular excess in the peripheral blood
indolent
slow growing or slow to progress
intrinsic factor
a substance normally secreted by the gastric mucosa that is needed for intestinal absorption of Vitamin B12
leukemia
blood cancer that results from a loss of normal cellular regulation, leading to uncontrolled production of immature WBCs (“blast” cells) in the bone marrow
leukocytes
white blood cells (WBCs)
leukopenia
reduction in the circulating number of white blood cells (WBCs)
lymphomas
cancers of the lymphoid cells and tissues with loss of cellular regulation and abnormal overgrowth of lymphocytes
malignant
cancerous
multiple myeloma (MM)
a white blood cell cancer of mature-B lymphocytes called plasma cells that secrete antibodies
nadir
the period after chemotherapy in which bone marrow suppression is the most severe
pancytopenia
a condition of low circulating numbers of all blood cell types
perfusion
adequate arterial blood flow through the tissues (peripheral perfusion) and blood that is pumped by the heart (central perfusion) to oxygenate body tissues
m
peripheral blood stem cells (PBSCs)
stem cells that have been released from the bone marrow and circulate within the peripheral blood
pernicious anemia
anemia resulting from failure to absorb Vitamin B12, caused by a deficiency of intrinsic factor (a substance normally secreted by the gastric mucosa), which is needed for intestinal absorption of Vitamin B12