Flashcards in RBC, WBC, and Anemia Deck (120)
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1
sensitivity rules __ disease
out
2
specificity rules __ disease
in
3
hb equation
hb = rbc x 3
4
hematocrit equation
hct = hb x 3
or
hct = rbc x 9
5
rbcs are indirect measure of what
hemoglobin
6
hematocrit is indirect measure of what
rbcs in volume of blood
7
what tells you average size of rbc
MCV
8
what tells you quantity of hemoglobin in rbc
MCH
9
what tells you concentration or color of rbc
MCHC
10
increase in RDW suggests what
what conditions
increase in different types of cell sizes
factor deficiency, homozygous globinpathy
11
normal RDW suggests what conditions
thalassemia minor
heterozygous globinpathy
chronic disease anemia
12
what is a spherocyte
type of microcyte
round and lacks center clear area
13
what are polychromatophile RBCs
reticulocytes
immature RBCs
14
what is rouleaux
rbcs partially adhering to each other like stack of coins
15
what is anemia defined as
decrease in hemoglobin concentration
(may result from loss of RBCs which contain hb)
16
what are the causes of pseudoanemia
overhydration
fluid retention
pregnancy
athletics
hypoalbuminemia
lab error
posture
17
what are causes of anemia
hemorrhage
bone marrow failure
renal disease
dietary deficit
hemolytic disease
18
anemia is classified by what
cell morphology
- macrocytic, micro, normo
- hypochromic, normo
pathogenesis
- factor deficiency
- production deficit
- depletion
19
what are the steps to determine if patient is anemic
ask question - are they anemia
morphology classification
pathogenesis
20
factor deficiency results from what
lack of raw materials necessary for hematopoesis
21
what are factors necessary for hb synthesis
iron
b12
folic acid
pyridioxine
22
microcytosis results from hb molecule lacking __ or __
iron - IDA
pyridoxine - sideroblastic anemia
23
most common cause of microcytosis
IDA
24
MCV and MCHC decrease
IDA
25
microcytosis is a process that evolves over time
what happens to serum ferritin? si? and tibc?
ferritin decreases
si decerases
tibc increases
26
IDA morphology and pathogenesis
microcytosis
hypochromic
27
what is necessary for the development of heme
pyridoxine
28
what is pyridoxine decreased by
alcohol stress diet
29
in pyridoxine deficiency, the si is __ and tibc is __
si increases
tibc decreases
30
