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Today's Medical Assistant > CH # 31: Phlebotomy > Flashcards

CH # 31: Phlebotomy Flashcards

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USMLE® Step 1 flashcards
1
Q

The surface of the arm in front of the elbow

A

Anticubital space

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2
Q

A substance that inhibits blood clotting

A

Anticoagulant

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3
Q

A thin, light-covered layer of WBC’s and platelets that lies between a top layer of plasma and a bottom layer of RBC’s when an anticoagulant has been added 2 a blood specimen

A

Buffy coat

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4
Q

A closed glass or plastic tube that contains a premeasured vacuum

A

Evacuated tube

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5
Q

A swelling or mass of coagulated blood caused by a break in a blood vessel

A

Hematoma

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6
Q

An increase in the concentration of the nonfilterable blood components in the blood vessels, such as RBC’s, enzymes, iron and calcium, as a result of a decrease in the fluid content of the blood

A

Hemoconcentration

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7
Q

The breakdown of blood cells

Inverting tubes prevents this from happening

2 prevent guidelines:

  • store at room temp
  • let alcohol fully dry b4 veinpuncture
  • smaller gauge needles can cause the blood cells 2 rupture
  • handle carefully-no shaking
A

Hemolysis

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8
Q

Inflammation of bone and cartilage

A

Osteochondritis

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9
Q

Inflammation of the bone or bone marrow as a result of bacterial infection

A

Ostemyeitis

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10
Q

A health care professional trained in the collection of blood specimens

A

Phlebotomist

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11
Q

Incision of a vein 4 the removal of blood

The collection of blood

A

Phlebotomy

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12
Q

The liquid part of the blood consisting of a clear, straw-colored fluid that comprises approximately 55% of the blood volume

A

Plasma

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13
Q

Plasma from which the clotting factor fibrinogen has been removed

A

Serum

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14
Q

Puncturing of a vein

A

Venipuncture

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15
Q

The backflow of blood (from a vacated tube) in2 the patient’s vein

A

Venous reflux

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16
Q

The temporary cessation or slowing of the venous blood flow

A

Venous stasis

17
Q

Order of the draw: 1st

Used 4 blood cultures and sterile specimens

Contains: anticoagulant sodium polyanethol

Inversions: 8-10

A

Yellow

18
Q

Order of the draw: 2nd

Contains: anticoagulant sodium citrate

Used 4 whole blood or plasma but it’s most use is 4 coagulant tests like prothrombin time

Inversions: 3-4

A

Light Blue

19
Q

Order of the draw: 3rd

Used 4 clotted blood or serum (serum is needed 4 serologic tests and most blood chemistries)

Contains: nothing

Inversions: none

A

Red

20
Q

Order of the draw: 4th

Contains:serum separator gel and clot activator

Inversions: 5

A

Red and Grey - speckled tube

21
Q

Order of the draw: 5th

Contains: a gel that separates the cells from the serum when the tube is centrifuged

Inversions: none

A

Gold

22
Q

Order of the draw: 6th

Commonly used 4 blood gas determinations and pH asseys

Contains: anticoagulant heparin

Inversions: none

A

Green

23
Q

Order of the draw: 7th

Contains: plasma separator gel and lithium heparin

Inversions: 8-10

A

Light Green and Grey

24
Q

Order of the draw: 8th

Contains: plasma separator gel and lithium heparin

Inversions: 8-10

A

Light Green

25
Q

Order of the draw: 9th

Contains: anticoagulant EDTA

used 4 whole blood or plasma but it’s most frequently used 4 a CBC

Inversions: 8-10

A

Lavendar

26
Q

Order of the draw: 10th

Used 4 the detection of trace elements like lead, zinc, arsenic and copper so it is made of a specially refined glass and stopper

Contains: anticoagulant EDTA or no additive at all

Inversions: 8-10

A

Royal Blue

27
Q

Order of the draw: 11th

Used 4 whole blood or plasma but most most common use is 4 blood alcohol and drug tests or a oral blood glucose tolerance test

Contains: sodium fluoride preservative and anticoagulant potassium oxalate(anticoagulant)

Inversions: 8-10

A

Grey

28
Q

The patient should b given instructions several days b4 the specimen is collected and the instructions may include fasting.

If the MA is unsure about instructions a reference should b consulted:

  • outside laboratory; laboratory directory 4 support staff
  • in house; manufacturer’s operating manual or product incerts
A

Patient preparation

29
Q

The best vein 2 use in the antecubital space

This vein does NOT roll

Do not use if:

  • vein is 2 deep 2 b palpitated
  • scarred from previous veinpunctures
A

Median cubital vein

30
Q

This labeling may indicate a tube that no longer has a vacuum which makes it impossible 2 draw blood in2 the tube

A

Expiration date

31
Q

This type of needle’s gauge is 21-23 and ranges from 1/2 - 3/4 of an inch

Aka: winged infusion method

Recommended 2 use on adults w/small veins or children or if the antecubital veins r unusable

A

Butterfly needle

32
Q

The specimen must stand in an up right position for 30-45 minutes b4 centrifuging 4 proper clot 4mation of blood cells

Centrifuging should last for at lest 10 minutes or the gel barrier 4mation will b incomplete between the serum and the clot

A

SST wait time and spin time

Today's Medical Assistant (46 decks)

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