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Additive

Any material placed in a tube that maintains or facilitates the integrity and function of the specimen

Capillary action

Adhesive molecular forces between liquid and solid materials that draw liquid into a narrow-bore capillary tube

Diluent

Substance used to dilute a product

Fibrin degradation products (FDP)

Fragments of the fibrin/clot found in the bloodstream

Fibrinolysis

Process at the end of the clotting process that breaks down fibrin into small fragments, called fibrin degradation products, that lead to disintegration of the clot

Flea

Metal rod used for mixing the blood sample that fits inside a capillary tube

Hemostasis

Process of the formation of a blood clot when an injury occurs and then losing of that blood clot when the injury has been repaired

Palpate

To search for vein with a pressure-and-release touch

Reagent

Substance used to detect or measure another substance.

Thixotropic vasoconstriction

Any constriction of vessel(s) that limits blood flow.

Breathing the syringe

Pull back on the plunger to about halfway up the barrel and then push the plunger back

Bevel of the needle

The angle of the needle on the tip

Does a sharper bevel produce more or less pain

Less pain

Needle gauge 25

Inter muscular injections

Needle gauge 23

Butterfly or syringe collection

Needle gauge 22,21,20

Syringe or evacuated system collection

Needle gauge 16,18

iVs or blood donation

The use of a syringe larger than____to___is___recommended

10ml to 15ml not recommended

At what rate should blood be drawn to prevent vein collapse?

Pull plunger slowly and rest between pulls allowing vein to refill

Vacutainer system

Evacuated system
Manufactured since 1940s

Vacutainer/evacuated system needle configurations

1. Basic needle is straight, with no safety devices
2. Needle has safety device attached

pumping the hand

*should be avoided
*can change test results of some
*potassium is released into the bloodstream from the tissue and red blood cells.

Where is the tourniquet applied to draw blood?

3 to 4 inches above the puncture site

when should tourniquets be disposed

there are no osha standards but as a rule of thumb when it is soiled or it loses its elasticity

most commonly used tourniquet is made of

latex because it is more stretch and less costly

tourniquets

constrict the flow of blood in the arm and makes the veins more prominent

palpate

To examine by feeling and pressing with the palms of the hands and fingers.

The finger of which hand should be used dominant or nondominant hand?

same index finger of nondominant hand

how long can a tourniquet stay on an arm?

no more than 1 minute

hemoconcentration of blood

this is caused when a tourniquet is left on the arm too long

Equipment used to collect blood consists of 2 parts

1. a method of puncturing the finger or heel
2. a method to collect the sample

what type of lancet is recommended

spring-loaded puncture device

capillary action

Adhesive molecular force between liwuid and solid materials that draws into norrow-bore capillary tubes

microhematocrit cappilary tubes

...

blood gas testing

...

hematocrit

...

flea

small magnetic stirrer inside test tubes with heparin

Phlebotomist's tray should include at least the following:

1. Alcohol swabs
2. Gauze squares or cottonballs
3. Evacuated tube holders
4. Assorted evacuated tubes
5. Syringes
6. Various-size syringe and evacuated tube needles
7. Butterfly collection sets
8. Lancets
9. Microcollection equipment
10. Tourniquets
11. Sharps container
12. Marking pens
13. Disposable gloves
14. Ammonia capsule
15. Biohazard sharps container

10 mililiters (mL) is the same as

10 cubic centimeters

Which needle has the smallest bore?

25-gauge needle

A short draw with a sodium citrate tube will

...

Which anticoagulants prevent coagulation of the blood by removing calcium through the formation of insoluble calcium salts?

...

An anticoagulant is an additive placed in evacuated tubes in order to

...

A green-stoppered evacuated tube contains what kind of anticoagulant?

heparin
-sodium heparin
-lithium heparin

When serum is needed for testing, blood must be collected in which colored tubes?

...

Unsterile tubes may

...

The tourniquet should be applied how many inches above the proposed venipuncture site?

3 to 4 inches

Leaving the tourniquet on a patient's arm for an extended length of time before drawing blood may cause

hemoconcentration

gauge of needle is determined by

the diameter of the lumen or opening of the bevel end

what is a 25-gauge needle used for

inermuscular injections

A 25-gauge needle cannot be used for blood draw, why?

the red blood cells would be destroyed when the blood is pulled through the bore of the needle

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