Blood Collection Bookbased Flashcards
(55 cards)
Active ingredient in both antiseptics and disinfectant
A chemical thst kills or inhibits growth of living microorganisms
Biocide
Why dont u recommmend cotton balls
Cotton fibers might stick to the site and upon removal, bleeding may reinitiate
Common multisample needle lenth
1 or 1.5. Inches
Common butterfly needle length
0.5-0.75
Length selection depends on
User preference and deoth of the vein
A large needle may cause___ and a small needle may cause
Damage to vessels;hemolyzation
Needle safety devices must:
A. allow the phlebotomist to safely activate it with both hands.
one nand
B. create a barrier between a user’s hand and the needle after use. permovert
C. provide temporary containment of the used venipuncture needle.
D. All of the choices are correct.
B.
A needle safety device must be activated using one hand, not two. It must provide permanent-not temporary-containment of the used needle. However, the device must create a barrier between the user’s hand and the needle after use, which is the correct answer.
To satisfy OSHA regulations, if a needle. does not have a safety feature, the equipment with which it is used (such as a tube holder or syringe) must have a safety feature to minimize the chance of an
accidental needlestick.°
ETS needles without safety features must be used with
tube holders that have safety features.
S If the tube holder does not have a safety feature, you must use a
needle with it that has a safety feature.
Loss of vacuum is because of
Improper storage, opening of the tibe, dropping the tube
If the additive prevents clotting, the result is a
Whole blood specimen
If the additive is a clot activator, the blood will clot and
The specimen must be centrifuged to obtain the fluid portion
Plastic red tops used to collect blood specimens usually contain:
A. anticoagulants.
B.clot activators.
C. no additives.
D. preservatives.
Why?
B.
contain clot activators (the correct answer) because plastic tubes are so smooth inside that platelet aggregation and adhesion are inhibited,
Kapag glass it has a rougher surface no need for clot activators
What gauge increase the chances for hemolysis
Gauge 25
The first tube collected with a blood collection set will underfill because _____. If the tube contains an additive, the blood-to-additive ratio will be affected. To remove the air from the tubing before collecting an additive tube, ____
This tube is discarded, and collecting it is referred to as collecting a clear or discard tube. Collecting a discard tube is essential whenever a coagulation specimen is collected using a blood collection set.
of air in the tubing; a few milliliters of blood must be collected in a nonad-ditive tube or another additive tube of the same type.
What will you do if u observed a microclot
Discard and recollect blood specimen
Excess EDTA, which results when tubes are underfilled, _____
can cause RBCs to
shrink and negatively affect CBC results.
____ is also the additive in special erythrocyte sedimentation rate
(ESR) tubes with ___ stoppers.
Sodium citrate; black
What will happen if u underfulled a citrate tube
Prolonged clotting time
In potassium tets, what is preffered heparinized pr serum, why?
Hepranized becuase when serum is used it may cause elevated potassium levels and affect the results
What are the three heparin frormulation
Lithium, sodium, and ammonium
are used for lithium levels and some immunology tests.
Sodium heparain
s primarily used in microcapillary tubes for HCT determinations.
Ammonium heparin
