Purpose for blood draw order
minimize contamination risks
order of blood draw order
sterile,
blue
red
green
lavender
grey
ANA
AntiNuclear Antibodyw
what is ANA ordered for
to look for connective tissue disorder
CBC
complete blood count
When would we order a CBC?
To support the diagnosis of infection
Identify disorders
releated to WBC
Determine if anemia is present (microcytic,
macrocytic,
Assess platelets in bleeding disorders
Main compononents of CBC
WBC count
RBC
Hemoglobin
Hematocrit
WBC
total count of the number of white blood cells in each volume
Eosinophils
Allergic reaction, Inflammation, parasitic
Basophils
Inflammatory and allergic response, similar to mast cells in tissues
Monocytes
On differential summary view
Neutrophils
Marker for infection, inflammation or physiologic stress
Strep is
bacterial
Positive strep test
does not need blood work to confirm
WBC in strep test
would support diagnostic but would not change course
What do you call elevatdd WBC
leukocytosis
Common things to increase wbc count
infection,
what do you call low wbc count
Leukopenia
RBC
red cell count. literally.
hemoglobin count
total amount of hemoglobin in sample measured
male hgb levels
14-18
female hgb
12-14
Anemia
lower than normal count of hemoglobin
hgb is specific to
age
cell indeces
help define the size and hemoglobin content of rbc under microscope smear
mcv
volume of an average rbc
cells that are microcytic are
small
cells that are macrocytic are
large
MCH
mean corpuscular hemoglobin
MCHC
mean corpuscular hemoglobin conc.
mchc
how much hemoglobin per weight, what color of rbc
RWD
red blood cell distribution width, variation in size of rbc
anisocytosis
red blood cells that are of different sizes
sodium
interconnected with water and potassium
main cation of
extracellular space
Main determinant of plasma
osmolaliy
counterbalances intracellular potassium
serum sodium regulated by
ADH
aldosterone
hypovolemia and hypervolemia are primarily
sodium problems
hypo/hypernatremia are primarily
water problems
Creatinine
actually measuring creatinine clearance