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What are the types of CVADs?
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- Non-tunneled
- Tunneled
- Peripherally Inserted Central Catheter (PICC)
- Implanted Vascular Access Device (IVAD)
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Describe a non-tunneled CVAD.
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- Shorter term use
- Fast access
- Higher rate of infection
- 1-4 lumens
- 6-8 inches in length
- Inserted through a subclavian vein
- Tip rests in superior vena cava (above the R atrium)
- EXCEPT in a femoral CVAD: tip rests in the inferior vena cava
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Describe a tunneled CVAD.
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- Long term use
- 1-3 lumens
- Made of stronger medical grade silicon
- Inserted by physicians in OR through subcutaneous tissue in chest
- Usually exits around nipple level
- 7-10 days after insertion, scar tissue forms around cuff (anchors catheter and stops microorganisms from migrating up tunnel)
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Describe a PICC.
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- Intermediate term use (6 mo - 1 yr)
- Lower rate of infection
- Inserted in peripheral vein by physician or certified RN
- Tip rests in superior vena cava (above the R atrium)
- EXCEPT in a midline catheter: tip rests in a peripheral vasculature
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Describe an IVAD.
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- Long term use
- Implanted under skin with no external parts
- May last for over 2000 punctures
- Accessed with non-coring Huber needle
- RN with special training to access port
- Often seen in elderly or youth
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What are some complications with CVADs?
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- Sepsis
- Air embolism
- Thrombosis
- Pneumothorax
- Cardiac tamponade
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What are S&S of sepsis?
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- Local: redness, tenderness, warmth, purulent drainage, swelling, change in vital signs
- Systemic: fever, malaise, increased WBC
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What are the common causes of sepsis?
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- Poor insertion technique
- Multiple lumens
- Bacteria adhering to fibrin sheath
- Frequent dressing changes or poor technique
- Long term use
- Immunosuppression
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What are the nursing interventions for sepsis?
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- Notify physician of assessments
- Obtain orders for blood cultures, hold any antibiotic orders until cultures done
- Apply warmth to insertion site
- Monitor VS
- Keep dressings dry if discharge
- Check facility policies (eg. sending tip of catheter to lab for C&S)
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What are S&S of an air embolus?
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- Chest pain
- SOB
- Tachycardia
- Decreased BP
- Cyanosis
- Dizziness
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What are the common causes of an air embolus?
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- Taking in air during insertion, tubing changes, or catheter removal
- Catheter disconnected from extension tubing
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What are the nursing interventions for an air embolus?
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- Emergency situation
- Clamp line
- Place in trendelenburg
- Provide oxygen therapy
- Notify physician
- Monitor vital signs
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What are the S&S of thrombosis?
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- Swelling of arm and neck
- Fever
- Malaise
- Neck pain radiating to arm or back
- Tachycardia
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What are the common causes of thrombosis?
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- Poor positive pressure
- Poor flushing technique or frequency
- Non-thrombotic occlusion due to fibrin build-up and lack of turbulent flush
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What are the nursing interventions for thrombosis?
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- Slow IV infusion rate
- Apply warmth to site
- Thrombolytic/anticoagulent agents may be used
- Notify physician
- Monitor vital signs
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