CVC's Flashcards

1
Q

Where is location of CVC catheter tip

A

the lower third of the superior vena cava and the junction of the right atrium. CAVOATRIAL

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2
Q

Reasons you might use CVC of peripheral IV

A

To monitor central venous pressure in ill patients
To rapidly administer IV fluids
To administer drugs and/or chemotherapy
To administer blood products
To administer TPN
To monitor post-op patients
To assist in the diagnosis of
cardiac failure
For long-term therapy when a patient’s veins are poor/limited
To administer multiple incompatible medications simultaneously

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3
Q

4 types of CVC

A
  • Percutaneous Non tunnelled (Yer standard Short-Term /long term) e.g. CVC
  • Tunneled/ Non- tunneled e.g. Hickman(tunneled)
  • Peripherally Inserted Central Catheter e.g. PICC
  • Implanted Venous Port e.g. Portacath
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4
Q

Characteristics of percataneous CVC

A

Inserted through the Subclavian Vein, Jugular Vein, Femoral Vein .

 Used for short-term therapy, days to several weeks

 Can be single, double or triple lumen

 Not surgically inserted

 Held in place with sutures

 Clamps preset ,Non valve(close when flushing /changing caps)

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5
Q

Characteristics of Hickman CVC

AKA externally tunnelled

A

Used for long-term ( considered permanent)

Inserted in the chest region: subclavian or jugular vein

Surgically inserted

Held in place by a Dacron cuff coated in antimicrobial solution. (under skin)

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6
Q

Characteristics of PICC

A
  • Can be used for days to months
  • Some types have a special one-way valve called a “Groshong Valve” that negates the need for heparinization (see pt’s specific care plan)
  • inserted into the antecubital fossa or the upper arm (basillic or cephalic) and advanced to reach the superior Vena Cava
  • Not surgically inserted
  • Held in place with sutures or manufactures’ securement device
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7
Q

Characteristics of implanted venous ports

A

 Used for long-term therapy(permanent)

 Inserted into the chest ,abdomen or inner aspect of the arm

 Requires surgery to be inserted( catheter inserted via the subclavian or jugular and attached to reservoir located within the subcutaneous pocket)

 No external lumens, once inserted require minimal nursing care

 Need to access with a special noncoring needle(Huber) using sterile technique

For example : Portacath

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8
Q

Name another IV set up that isn’t quite a CVC

A

Peripheral MIDLINE

  • Common use in Island Health
  • offer an all in one insertion mechanism with an integrated guide wire to assist with difficult insertions
  • The device has a dwell time of 4 weeks
  • Flushing: with 10mLs N/S Q8h to maintain patency and before and after each use
  • dressing change :Q 7 days for transparent dressing and q 48 hours if gauze dressing is applied
  • Check the care plan
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9
Q

Patient assessment prior to CVAD insertion

A

*Understand why the patient needs a CVC

 Review the order for CVAS accuracy and completeness

 Assess pt.’s hydration status, allergy for iodine/chlorhexidine

 Assesse for any surgical procedures in the upper chest or any anatomic irregularities of the proposed site

 Obtain a Consent form

 Assess patient understandings of CVADs ; knowledge of purpose, care &; maintenance.

Xray order

Fluid status, resp assessment

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10
Q

What is the Valsalva maneuver? why do it?

A

Just before time of insertion, ask patient to hold breath and strain. This increases central venous pressure to prevent entry of air into the catheter

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11
Q

Important considerations changing an injection cap

A

Clamp however possible

Valsalva maneuver

flush with saline

Slide says to cleanse w/ antiseptic out of wrapper (its sterile.. no?)

Monitor, assess document

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12
Q

Procedure for CVC flush

A

Use ASASH

Aspirate ,Saline, Administer Medications ,Saline, heparin

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13
Q

Factors to consider when choosing to use CVAD

A

Many factors are considered before placement of a CVAD such as

pH and osmolarity of the solution or medication (pH less than 5.0 or greater than 9.0, osmolarity greater than 600 mOsm/L) to be administered,

Duration of therapy (greater than 7 days),

Status of veins for short peripheral access

Disease process (e.g., cancer, pain management)

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14
Q

CVC what is required pre and post insertion from nursing?

Complications post?

A

pre- informed consent

Post- complications and Tip location documentation

Complications
Subcutaneous emphysema 
Bleeding 
Air embolus 
Pneumothorax
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15
Q

How often is a CVC drsg changed

A

Q7days or PRN

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16
Q

How often is IV tubing change if continuous? how long if intermittent?

A

Continuous is 96hrs, intermittent is 24

17
Q

How much heparin do you flush with? and with what devices

A

3mls. CVC w/o valve- yes, PICC w/ valve - No

18
Q

Anything different about flushing after blood draw?

A

20 mL of NS then heparin (not 10 as usual)

19
Q

Lumen colours and Uses

A

Brown- distal (big one) TPN, blood, CVP monitoring
Blue- medial- TPN medication, general access, blood
WHite- medications and general access

20
Q

How often do you flush a CVC? How?

A

q24hr using ASASH`

21
Q

What is the procedure for flushing a PICC

A

USAS

unclamp, scrub, access, saline

22
Q

Why not use smaller syringes when flushing?

A

smaller syringes may produce more pressure and rupture catheter

23
Q

How often is a pic dressing changed

A

Q7days

24
Q

what are (CLABSIs)

Cause

A

central line associated bloodstream infections

(CLABSIs) caused by contamination of the catheter from the skin of the patient or poor infection-prevention practices during insertion or care and maintenance

25
Q

Complications of venous access devices?

A

Catheter Damage ,Occlusion, Dislodgment, catheter migration, skin erosions, infiltration, extravasation, Pneumothorax, Hemothorax, Air embolism and incorrect placement

26
Q

nursing intervantions for air embolism

A
  • Clamp IV
  • Place client in left Trendelenburg position
  • Call for help (may need to call a Code Blue)
  • position pt. on left side with head down
  • Administer O2
  • Assess vital signs ,breath sounds
  • Notify the Physician
  • Document your assessment and nursing interventions
27
Q

Considerations for TPN admin

A

When TPN is being infused a lumen MUST be dedicated and labeled for this use. Nothing else is to be given via that lumen. (In a triple lumen catheter, the Medial lumen is typically used)

28
Q

What requires the scrub step

A

Positive Displacement IV Cap when accessing through the cap
•Friction scrub the CVC hub when removing/changing cap
• Always scrub using an alcohol swab for 30 seconds allow to dry completely

29
Q

Troubleshooting a blocked catheter with no blood return on aspiration?

A
  • Reposition patient
  • Ask patient to lift arms, cough and perform Valsalva manoeuvre
  • Ask patient if usually able to aspirate blood from the line
  • Re-aspirate for blood. If you have free-flowing blood return, proceed with flush
  • If a positive displacement cap is present, remove the cap and try to aspirate from a syringe connection directly with the catheter hub
  • If line flushes easily, continue with the procedure

Gently, you can try and flush, if blocked, call doc, label do not use occluded

30
Q

Allergies pre-CVC in?

A

iodine, latex, clorahexadine, maybe others

31
Q

what is Dacron cuff

A

tunnelled catheter cuff to anchor and prevent infection.

32
Q

most likely complication cvc?

Most serious?

A

infection

air embolism

33
Q

How to avoid air embolism?

A

insertion, cap change

valsava, luer lock (valve), q1hr

34
Q

Why left for trodenlenburg?

A

air up, right atrium