Colors of Evacuated Tube System Flashcards
EDTA
Found if Lavemder Tubes
Sodium polyanethol
sulfonate (SPS) – bacterial
culture
Yellow Tubes
Sodium Nitrate (coagulation
studies/test
Light Blue Tubes
Heparin (blood gas/ pH
analysis)
Green Tubes
Sodium Fluoride – glucose
testing.
Gray Tubes
The liquid portion of unclotted blood or
with an anticoagulant.
Plasma
The liquid portion of clotted blood.
Serum
Is a hollow needle commonly used with a
syringe to inject substances into the body
or extract fluids from it
HYPODERMIC NEEDLE AND SYRINGE
Gauge number for venipuncture
18-23
Gauge number for children
23
Gauge number 18
Pink
Gauge number 19
brown of ivory
Gauge number 20
Yellow
Gauge number 21
Green
Gauge number 22
Black
Gauge number 23
Blue green or blue
Are used to enhance contrast in samples,generally at the microscopic level. Also used in histopathology, hematology and microbiology/bacteriology section
STAINING DYES
Stain
organic compound use for staining
Dye
Coloring agent
3 types of stains
simple, differential, special stain
Simple stain
single stain
Differential Stain
Differentiate and contrast specimen.
Used to differentiate gram-positive bacteria from gram-negative bacteria.
Gram Stain
Tthe thick layer ofpeptidoglycan.
Gram-positive
Gram-negative
the thin layer of
PTG.
gram stain components
➔ Crystal Violet – primary stain
➔ Gram iodine – mordant
➔ Alcohol – decolorizer
➔ Safranin – secondary stain (pink/red)
Gram Positive under the microscope:
blue, violet, or purple
Gram Negative under the microscope
pink or red
Used to stain specific
parts of the bacteria such as the capsule,
spores, flagella, etc. Also used to stain
specific parts of the body such as the
tissue, collagen and etc.
Special Stain
