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PMLS 2 > Venipuncture Procedures > Flashcards

Venipuncture Procedures Flashcards

1
Q
  • Process of collecting or “drawing” blood from VEIN
  • MOST common way to collect blood specimens for laboratory testing
A

Venipuncture

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2
Q

3 methods of venipuncture

A
  • syringe method
  • evacuated tube system
  • butterfly
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3
Q

Step 1-5 in blood collection?

A

1.Review and Accession test Request
2.Approach, Identify, and prepare Patient
3.Verify Diet restrictions and Latex Sensitivity
4.Sanitize hands
5.Position Patient, Apply torniquet, and ask patient to make a fist

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4
Q

Step 6 - 10 in blood collection?

A

6.Select Vein, Release torniquet, and ask patient to open fist
7.Clean and air-dry the site
8. Prepare equipment and put on gloves
9. Reapply tourniquet, uncap and inspect needle
10. Ask patient to remake a fist, anchor vein, and insert needle

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5
Q

Step 11 - 15 in blood collection?

A
  1. Establish blood flow, release the tourniquet, and ask patient to open fist
  2. Fill, remove, and mix tubes in order of draw or fill syringe
  3. Place gauze, remove needle, activate safety feature, and apply pressure
  4. Discard collection unit, syringe needle, or transfer device
  5. Label tubes
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6
Q

Step 16 - 20 in blood collection?

A
  1. Observe special handling instructions
  2. Check patient’s arm and apply bandage
  3. Dispose of contaminated materials
  4. Thank patient, remove gloves, and sanitize hands
  5. Transport specimen to the lab
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7
Q

What are 3 skills used in phlebotomy?

A

1.Social Skills (Interpersonal)
2.Administrative/Clerical Skills-most errors in the laboratory
3.Technical Skill

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8
Q
  • Ordering physician’s name
  • Patient’s firstand last names and middle initial
  • Patient’s medical record number (if inpatient)
  • Patient’s date of birth or age
  • Room number and bed (if inpatient)
  • Type of test to be performed
  • Date test is to be performed
  • Billing information and ICD-9 codes (if outpatient)
  • Test status (e.g., timed, fasting, priority)
  • Special precautions (e.g., latex sensitivity)
  • Accessioning number
  • Department or location where to do the test
A

Information included in Test Request Form/Requisition Form

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9
Q

A number to identify all paperwork and supplies associated with each patient

A

Accession Order in Test Request form

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10
Q

contain the actual labels that are placed on the specimen tubes immediately after collection

A

Computerized (test request form)

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11
Q
  • Multipart carbon form
  • Imprinting plate
     Full name, ID #, Rm#, Physician’s name, Request tests (handwritten only)
  • Can be given to the phlebotomist or the patients
A

Manual (test request form)

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12
Q

print out at a special computer terminal at the phlebotomist station in the laboratory

A

Computer requisitions for inpatients (receipt of test request)

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13
Q
  • laboratory requisitions or prescription slips with test orders written on them by their physicians
  • responsible for taking them to a blood collection site
A

Outpatients (receipt of test request)

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14
Q

In reviewing the test request, the phlebotomist must?

A
  • Check to see that all required information is present and complete.
  • Verify the tests to be collected and time and date of collection.
  • Identify diet restrictions or other special circumstances that must be met prior to collection
  • Determine test status or collection priority
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15
Q
  • Process of recording in the order received
  • This means to take steps to unmistakably connect the specimen and the accompanying paperwork with a specific individual
  • It ensures prompt and accurate processing from receipt of the order to reporting of test results.
A

Accesioning of Test Request

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16
Q
  • Organized and effective and efficient
  • Arrange the requisitions according to priority
  • Review the requisitions in order to see what equipment is in cart or tray before going to the patient
  • Outpatients, summoned from waiting area according to arriva
A

Approaching the patient

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17
Q
  • Looking for signs-“code”
  • Entering a patient’s room
  • Physicians and ClergyFamily and Visitors
  • Unavailable Patient
  • Obtaining Consent-“patient’s consent”
  • Bedside manner
  • Define as the behavior of thehealthcare provider towards the patient
  • Introduce yourself
A

approaching patients

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18
Q

Define as the behavior of the healthcare provider towards the patient

A

bedside manner

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19
Q
  • Gaining the patient’s trust
  • Introduce yourself to the patient
  • Give your name, your title and why you are there
  • Immediate role in his/her care
  • How long the procedure will take
  • What you are going to do
  • Never give false assurance to the patient
A

greeting the patient

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20
Q
  • Most important step in the collection process
  • Results will be wrong if the sample is not identified correctly
  • Ask the patient to state his/her full name and DOB
  • CLSI recommend to let patient spell the last name
  • Check ID Bracelets
A

Patient identification

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21
Q

What information can be found in an ID band?

A

Name, ID #, Medical Record Number, DOB, Age, Room, Bed and Physician/s name

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22
Q

What information can be found in a 3-Way ID?

A

Patient’s verbal ID statement, check of ID band, comparison of labeled specimen and patient’s ID before leaving the bedside

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23
Q

Patient identification procedures (state of patient): Ask full name (verbally), confirm using ID bracelets

A

Conscious Inpatients/Hospitalized patients

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24
Q

Patient identification procedures (state of patient): Same as conscious, awakened before collection

A

Sleeping patients

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25
Q

Patient identification procedures (state of patient): Ask relative or nurse or physician and record name of person, ID bracelets

A

Unconscious

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26
Q

Patient identification procedures (state of patient): Ask relative or nurse and record name of person, ID bracelets

A

Infants and Children and Mentally Incompetent

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27
Q

Patient identification procedures (state of patient):
* Receptionist verifies the ID of the patient
* Patient may show ID
* Clinic issued ID CARD
* State full name, date of birth and spell the last name

A

outpatient/ambulatory patients

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28
Q

Patient identification procedures (state of patient):
* Assign a temporary number to patient and record it on test forms
* Fill out labels by hand or computer and apply them to the test request and specimens after collection
* When a permanent number is issued, it must be cross referenced to the temporary number
* Attach an ID band or device to the patient that has name and temporary number on it.
-> 3 part identification band

A

Emergency room patients

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29
Q

What to do in case of ID discrepancies?

A
  • Notify the nurse
  • Do not obtain until discrepancy is addressed and the ID has been verified
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30
Q

If there are no (ID) band on wrist, where should we check?

A

ankle

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31
Q

In the case of missing ID, what does IV pole and night table bed mean?

A

may not belong to patient

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32
Q

What to do when a burn patient has missing ID?

A

verbal statement of ID, confirm ID by a nurse or relative then ask for their name

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33
Q

“Ask the nurse to put ID band before collecting specimen” this is done when?

A

there is missing ID

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34
Q

What is that thing we should never do in the case of a missing ID?

A

NEVER verify information from an ID band not attached to the patient or collect a specimen from an inpatient who is not wearing an ID band

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35
Q

What to do to prepare patient for blood collection?

A
  • Explaining the procedure
  • Addressing Patient Inquiries
  • Handling Patient Objections
  • Addressing Needle Phobia
  • Addressing Objects in the Patient’s Mouth
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36
Q

Most common diet/fasting for blood collection?

A

Most common is fasting (8-12 hrs

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37
Q
  • Can be life threatening
  • If with allergy, use equipment/materials with no latex or latex free
A

Latex sensitivity

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38
Q
  • Proper hand hygiene
  • Preferably done in the presence of the patient
  • Sanitize or decontaminate hands
  • Observe infection control and isolation policies
  • Prevent spread of disease and to protect the patient
  • Gloves are usually put on at this point
  • Other prefers to wait until after vein selection
A

sanitize hands

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39
Q

Position of the patient?

A
  • Arm in a downward and comfortable manner not bent on the elbow
  • Out patients-Seated or reclined
  • Inpatients-lying down in their beds
  • NOT STANDING nor SITTING in a TALL STOOL
  • Chair with adequate arm support
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40
Q

purpose of tourniquet?

A
  • Obstruct the venous blood flow
  • Make the veins prominent
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41
Q

What is the distance from the site in which the tourniquet will be placed?

A

3 - 4 inch above the site

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42
Q

How long should a tourniquet be applied on?

A

applied not longer than 1 minute

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43
Q

Blood pressure cuff?

A

60 mmHg (between systolic and diastolic pressure)

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44
Q

after applying the tourniquet, what should we ask of the patient?

A

Make a fist or clench

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45
Q

When locating a vein, what does it feel?

A
  • Soft and bouncy to touch
  • Determine roundness, direction and depth of vein
46
Q
  • Felt the vein using the tip of the ____ or ____ fingers
  • ____ has different angles or cross the arm going side to side
  • If there is pulse when you pulsates, that is an ____
  • Avoid puncturing ____ and ____
A
  • index or middle
  • Veins
  • artery
  • tendons and nerves
47
Q

In vein selection:
* Select the most _____ vein
* Always choose the ___vein
* Enhance vein _____

A
  • prominent
  • best
  • prominence
48
Q

Order of checking for the best available site (vein)?

A

(1) Upper arm, (2) hand, (3) wrist, (4) foot or ankle

49
Q

Appropriate sites

A

Sites:
Newborns a.Scalp
b.Popliteal
c.Jugular
d.Dorsal of the hand

50
Q

Sites to be avoided?

A

a.IV lines in both arms
b.Areas with Hematoma
c.Burned or scarred areas
d.Thrombosed veins
e.Edematous arms
f.Partial/Radial mastectomy
g.With AV shunt or fistula
h.Cast (s) on arm (s)

51
Q

If a suitable vein is not felt on the first arm, remove the tourniquet and try the ______

A

other arm or other sites.

52
Q

What to do if a suitable vein cannot be found?

A
  • Massage the arm from wrist to elbow
  • Wrap a warm, wet towel around the arm or hand for a few minutes
53
Q

If an appropriate site is found, you can mark the vein’s location by???

A
  • Do not use pen
  • Use alcohol pads
54
Q

When a tourniquet is used for preliminary vein selection, it should be released and reapplied after ____ (time)

A

two minutes

55
Q

If a vein has already been chosen, decontaminate the patient’s skin with an ________

A

alcohol pad or cotton with alcohol.

56
Q

How to decontaminate patient’s skin with alcohol pad or cotton with alcohol?

A
  • Disinfection of the site for puncture
  • Circular motion from in to outside.
  • Must remove excess alcohol with dry cotton not by blowing on it.
  • No traces of alcohol should remain (Cause hemolysis and contaminate glucose testing)
57
Q

4 disinfectant used to clean and air-dry the site

A
  • 70% isopropyl alcohol
  • Iodine
  • Chlorhexidinegluconate/isopropyl alcohol
  • BenzalkoniumChloride (ZephiranChloride)
58
Q
  • Positioning equipment for use:
  • Place ______ and other supplies such as gauze and alcohol pads and extra supplies within easy reach
  • Caution: Do not place the _____ on patient’s bed or any other place that could be contaminated by it.
A
  • collection equipment
  • phlebotomy tray
59
Q

Perform the venipuncture:
* Re-apply the tourniquet. Ask the patient to _____ to make veins more prominent.
* Anchor the ___
* Avoid fist _______ (Can cause ________)
* Pull the skin gently with the thumb, and position the needle _______ or running in the same direction as the vein.

A
  • close his fist
  • vein
  • clenching or vigorous hand exercise (Hemoconcentration)
  • parallel
60
Q
  • Insert the needle quickly, bevel side up.
  • Align the needle (_____ up)
  • ___ angle with the skin
  • The more superficial the vein the ____ the angle
  • Slight “pop” should be felt as the needle ____
A
  • bevel
  • 15-30 degree
  • lower
  • enters the vein
61
Q
  • Needle specifications
  • Small bore can cause ____
62
Q
  • For Syringe Method:
     Using _____ hand
     Held the syringe in a manner that the ___ is facing upward
     Grasp the arm with the ______ hand
     Do not enter the vein at _______
     Feeling the ____ as you enter the vein
     ____ is used to pull the plunger
    Pulling the plunger ___
A

 dominant
 bevel
 non dominant
 exact point you felt the vein
 “pop”
 Non-dominant hand
 slowly

63
Q

For syringe method, when should we remove the tourniquet?

A
  • As soon as blood flow is established
  • May move the needle or vein
  • ALWAYS remove before withdrawing the needle on the arm.
64
Q

Two methods of transferring blood in syringe method?

A
  • Using transfer device
  • puncturing the stopper of the tube
65
Q

Blood transfer method in syringe method in which: Removed the used needle then change it with the transfer device, then slipped the tube inside

A

Using transfer device

66
Q

Blood transfer method in syringe method in which:
* Used when there’s no transfer device available
* Used needle is removed and used a new needle
* Place the evacuated tubes in a tube holder then puncture the stopper of the tube

A

Puncturing the stopper of the tube

67
Q
  • For Evacuated Tube System
    Follow the same steps as the syringe with slight variation
     _____ created is on the tube
    Advantage: For multiple sample, do not need to change syringe, only ______
     Holder and needle are held the same manner as the ____
     Non-dominant hand is used to _____
A
  • Vacuum
  • tubes
  • syringe
  • change tubes
68
Q

For Evacuated Tube System
When to remove the tourniquet?

A

 Tourniquet can be left on until after tubes have filled if blood flow is slow
ALWAYS remove torniquet before withdrawing needle

69
Q

For Evacuated Tube System:
* For multiple draw?

A

Carefully remove each tube from the holder with a gentle twist and pull motion. Follow the order of draw

70
Q
  • Can use either evacuated tubes or connected to a syringe
  • Uses Luer adapter
A

Butterfly (Winged Infusion Set)

71
Q

At what degree angle is a butterfly needle inserted?

A

5 - 10 degrees angle

72
Q

When to use butterfly (winged infusion set)?

A

Small veins in the antecubital area or access veins in the back of the hand [Same steps as the evacuated tube system]

73
Q

Order of Draw:

A

1.Sterile blood culture tubes-Yellow
2.Coagulation tubes-Light blue
3.Serum tube/ Plain tube-Red
4.Heparin tube-Green
5.EDTA tube-Lavander/Purple
6.Anti-glycolytictube/ Fluoride-Gray

74
Q

After blood collection:
 Withdraw needle with a quick motion, Hold a dry cotton or gauze pad over the ______.
MUST and ALWAYS: Recap needle but _______. Just Fish out
Apply _____on the site

A

 site
 DO NOT RECAP with BOTH HANDS
 pressure

75
Q

How long should pressure be applied in the site after blood collection?

A

3 - 5 mins, max of 15 mins

76
Q

What is the purpose of applying pressure on the site after blood collection?

A

To stop the bleeding

77
Q

___ and _____ is discarded as single unit
_______ may be removed and discarded separately

A
  • Needle and tube holder
  • Syringe safety needle
78
Q

Syringe connected to a transfer device for transfer of blood, after that, dispose as single unit (syringe attached on the transfer device)

A

safety syringe

79
Q

CAUTION: ______ regulations prohibit cutting, bending, breaking or recapping blood collection needles or removing them from tube holders after use.

80
Q

All samples should be labeled after ______ and before ____

A
  • the blood is drawn
  • the phlebotomist leaves the patient
81
Q

DO NOT label the tubes before _______

A

the blood sample is drawn.

82
Q

Data labeled by computers?

A

collection date, Time of collection, Phlebotomist’s initials

83
Q

Hand-labelled information?

A

The patient’s first and last names
An identification number such as date of birth
The collection date
The time the sample was collected
The initials or name of the person collecting the sample

84
Q

What is computer labelling showed/represented by?

85
Q

In computer labelling, what does the bar codes show?

A

What test to run, What patient the test is on
Results automatically enter the patient’s record
Speed up computer entry of results and eliminate clerical errors

86
Q

why are labels adhesive?

A

Adhesive so they are directly attached to the tube

87
Q

What to do after collecting/labelling sample?

A

Observe special handling instructions.
Check the condition of the patient before leaving.
Dispose the used materials.
Needle, cottons, syringe
Thank the patient. Remove gloves and sanitize the hand.
Transport the specimen to the laboratory.

88
Q

Complications of venipuncture:
Excessive pull of plunger
Piercing the other pole of the vein
Transfixation of vein
Incorrect bevel position
Absence of vacuum

A

Failure of blood to enter syringe

89
Q

complications of venipuncture:
Increase in the number of formed elements in the blood

A

Hemoconcentration

90
Q

Complications of venipuncture: Product of blood escaping from the punctured vein and goes to the surrounding tissue

91
Q

Complications of venipuncture:
Causes:
Fragile vein
Needle pentrated through the vein
Needle is partially inserted
Excessive or blind probing
Needle is removed while the tourniquet is still on
Pressure is not adequately applied after venipuncture

92
Q

Remedy for hematoma?

A
  • Ice applied in the first 24 hours (After 24 hours, apply warm compress)
93
Q

4 immediate local complications of venipuncture

A
  • hemoconcentration
  • failure of blood to enter syringe
  • hematoma
  • bleeding
94
Q

2 late local complications of venipuncture?

A
  • thrombosis
  • thrombophlebitis
95
Q

Late local complication of venipuncture:
Abnormal vascular condition
Thrombus development within the blood vessel

A

thrombosis

96
Q

late local complication of venipuncture:
Inflammation of the vein accompanied by a clot
Result of trauma to the vessel wall

A

thrombophlebitis

97
Q

Intermediate general complication of venipuncture: Due to blood extraction

A

circulatory failure

98
Q

Intermediate general complication:
Transient loss of conscience due to lack of Oxygen in the brain
Inability to stay in an upright position
Anxiety or worriednessof the patient because of the procedure
Remedy: Ammonia, enhance circulation of blood supply to the brain
Seated patient feels faint, withdraw needle, head lowered between legs and patient breath deeply

A

syncope (fainting)

99
Q

2 intermediate general complication?

A
  • circulatory failure
  • syncope (fainting)
100
Q

late general complications of venipuncture (4)

A
  • hepatitis
  • AIDS
  • Anemia: IDA, latrogenic anemia
  • nerve injury
101
Q

late general complications of venipuncture:
Nerves contacted by needle
Improper vein selection

A

nerve injury

102
Q

Pain
Nausea
Diabetic shock
Convulsions
Skin Allergies

A

other patient’s possible reaction

103
Q

breaking or rupturing of the membrane of the red blood cells

104
Q

Drawing from a hematoma
Rupturing of red blood cells using small needle bore
Excess alcohol on puncture site
Leakage of air due to not attached syringe to needle
Pulling back the plunger too fast
Temperature extremes

A

(causes of) hemolysis

105
Q

Yellowish or orange color of the serum due to high bilirubin level in the blood

106
Q

White and milky color due to large amount of fats and lipid

107
Q

Techniques to enhance vein and recover a failed venipuncture?

A
  1. Retie the tourniquet.
  2. Use a blood pressure cuff in place of the tourniquet.
  3. Massage the arm. Do not slap the arm.
  4. Lower the patient’s arm.
  5. Warm the venipuncture location.
  6. Reseat the tube in the holder.
  7. Use a different tube.
  8. Place your finger below the venipuncture site and stretch the vein slightly.
  9. Rotate the needle one-quarter to one-half a turn.
  10. Pull back or advance the needle slightly.
108
Q

If the first try of venipuncture fails, what should be the next step?

A

If the first try fails, evaluate the problem and try on the other site
Try below the first site, opposite arm, hand or wrist vein

109
Q

If veins are small or fragile, _______ on 2nd attempt

A

use a butterfly or syringe method

110
Q

If 2nd attempt at venipuncture is unsuccessful, what should we do?

A

ask another phlebotomist to take over, if still unsuccessful, let the patient rest then try again later

111
Q

After 3 failed venipuncture attempts, If still cannot obtain blood, what should we do?

A

Notify the patient’s nurse and/or physician

PMLS 2 (6 decks)

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