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Specimen Collection & Laboratory Procedures
Chapter 15 Units 1 & 2
62
Medical
Post-Graduate
02/06/2012

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Term
The lab director in the Policy of Lab
(POL)is responsible for the management of the lab and
Definition
make sure that quality control and assurance are provided
Term
Quality control definition
Definition
process that validates final test results and determines any variation
Term
Every lab, including the physician office lab, is required by law to have in place
Definition
a carefully performed, documented, and on-going quality control program
Term
The quality control program
Definition
designed to monitor all aspects of lab activity, and ensures both the physician and the patient that the test results are accurate and is designed to discover and eliminate error
Term
Spilled blood or body fluids should be cleaned up by using a fresh 10% bleach solution and disposable paper towels
Definition
true
Term
Standard precautions are not recommended for health care workers
Definition
F.

PPE
Term
it is unimportant for health care providers to set a good example for patients regarding health habits
Definition
F
Term
patients should not be provided with verbal and written instructions for lab diagnotic testing
Definition
F.

Patients shoul dbe verbally instructed and given written instructions as well
Term
Eating , drinking, applying cosmetics, and handling contact lenses in the lab area is unacceptable due to possibility of contamination
Definition
T
Term
Magnification
Definition
the result of combining the ocular and the lens for observation of a specimen
Term
Minute
Definition
an adjective describing the size of articles examined microscopically
Term
Neck
Definition
The part of the microscope extending from the base to the oculars
Term
Stage
Definition
the part of the microscope on which the slides are placed for viewing
Term
Ocular
Definition
a part of the microscope that helps to bring the specimen on the slide into sharper view
Term
Adjustment
Definition
the part of the microscope that brings objects on the stage under sharp focus
Term
what is the microscope used for?
Definition
examine and identify minute objects that cannot be seen with the naked eye.
Term
The amount of routine maintenance required will vary with
Definition
the amount of use
Term
what is the part of the microscope that supports the eyepiece
Definition
arm
Term
what is the proper way to carry the microscope
Definition
grasp the arm with one hand and place the other hand under the base, holding it at waste level. Make sure the electrical cord for the light source is loosely wrapped and secured with a twist tie or rubber band.
Term
wrapping the cord of the light source of the microscope may cause
Definition
wires to break and maybe an short electrical fire
Term
Parts of microscope
Definition
eyepieces, base, arm, mechanical stage, stage, objectives, Abbe illuminator, In-base illuminator, coarse/fine focus adjustment, binocular observation tube.
Term
a microscope is a
Definition
expensive and technical instrument essential for the lab
Term
a monocular microscope has
Definition
1 eyepiece
Term
the objectives are attached to
Definition
nosepiece
Term
the objectives has 3 to 4 small lenses and each one has what?
Definition
magnifying power.
Term
objectives' power
Definition
the shortest has the lowest power:
(low-power field (lpf) 10 x more

next longer:
(high-power field (hpf)40 x more

longest:
oil-immersion which when used with oil=100 x more
Term
the stage has ___ clip(s). this one holds the specimen slide to be viewed. Just underneath the stage is the _______ which regulates the amount of light directed on the magnified specimen
Definition
2. condenser
Term
the use of eyeglasses is not necessary when working with microscope because
Definition
microscopes may be focused to compensate all visual defects except astigmatism
Term
capillary blood tests are frequently performed in the medical office because
Definition
the small amount of blood required, usually just a few drops
Term
another name for skin puncture procedure
Definition
finger-stick
Term
what are the capillaries
Definition
minute blood vessels that convey blood from the arterioles to the venules. At this level, blood and oxygen difusse to the tissues, and products of metabolic activity enter the bloodstream.
Term
where is capillary blood located
Definition
just underneath the skin
Term
what are the most practical sites to use for acquiring capillary blood
Definition
ring or great finger
earlobe (rare)
infant's lateral side of the heel
Term
skin puncture should be made across or parallel to the fingerprints
Definition
across
Term
patients who use this technique daily should simply wash the site with soap and water. Why or why not
Definition
True because alcohol tends to break down the skin if used very often
Term
what is the part that actually sticks the skin
Definition
lancet
Term
[image]
Definition
A) Eyepiece
B) Binocular observation tube
C) Arm
E) Mechanical Stage
F) Coarse focus adjustment
G) Fine focus adjustment
L) In-base illuminator
M) Condenser
N) Abbe Illuminator
O) Stage
P) Objectives
Term
standard precautions
Definition
must be followed when handling with blood and/or body fluids
Term
why is proper handwashing an important consideration when working in the lab and with patients?
Definition
to prevent cross-contamination
Term
what federal standard mandated the use of PPE when handling blood and/or body fluids?
Definition
Bloodborne Pathogens Standards
Term
Under CLIA '88, who could be eligible to perform moderate complexity testing?
Definition
medical assistant
Term
what is the correct solution for cleaning up blood and/or other potentially infectious material spills?
Definition
10% bleach solution
Term
not a requirement in the 1991 Bloodborne Pathogens Standards
Definition
giving workers a choice for wearing PPE
Term
place where diagnostic testing is performed
Definition
laboratory
Term
without any organisms
Definition
sterile
Term
used for skin puncture
Definition
lancet
Term
stat
Definition
immediately
Term
neonate
Definition
a newborn infant
Term
excessive squeezing of the capillary puncture site may dilute the specimen with tissue fluid
Definition
T
Term
cold hands will provide good blood flow from the puncture site
Definition
F
Term
It is unnecessary to wear gloves while performing capillary puncture
Definition
F
Term
Lancets should be disposed of into a sharps container
Definition
T
Term
earlobe capillary punctures for blood collection are not recommended
Definition
F
Term
when collecting blood from the puncture site, the first drop of blood is collected
Definition
F
Term
the use of an alcohol wipe disinfects the capillary site prior to the puncture
Definition
T
Term
Patients never bleed excessively from a capillary puncture site
Definition
F. they may if they have a coagulation disorder, or take aspirin or blood thinners
Term
steps for the capillary puncture
Definition
*introduce yourself and identify patient
*assemble the supplies
*don gloves
*disinfect the site with alcohol
*allow the site to air dry
*perform the puncture with lancet
*wipe away the first drop of blood
*collect specimen
*Provide clean gauze or cotton ball to apply pressure to site
*dispose of lancet and contaminated materials in appropriate biohazardous containers.
Term
why is it important to position the lancet across the fingerprints
Definition
to make it easier to the collection of the specimen; otherwise, it will run down the fingerprints making collection difficult
Term
Why should the lateral sides of the infant’s heel be used for capillary punctures?
Definition
Nerve and bone damage can occur if the middle of the heel is used for collection of capillary blood in infants. Using the lateral sides of the heel is best, as there are no nerves or bony tissue to injure.
Term
Why is the first drop of blood wiped away from the capillary puncture site?
Definition
The first drop of blood contains
tissue fluid that will dilute the specimen, yielding unreliable results for the test being performed.
Term
Capillaries are the microscopic structures responsible for
Definition
the cellular exchange of oxygen and
nutrients and transporting waste to the venules.
Term
Lancets are devices that
Definition
are sterile and sharp, used for obtaining capillary specimens, vary in style and depth of puncture, and must be disposed of by depositing in sharps containers
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