Vascular Access Devices Quiz
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Questions and Answers

What is the relationship between catheter size in French (Fr) and internal diameter in gauge (g)?

  • Gauge size and French size are unrelated metrics.
  • Larger French sizes indicate a smaller internal diameter in gauge.
  • French size and gauge are directly proportional.
  • Larger French sizes correspond to a larger internal diameter in gauge. (correct)
  • What are the potential risks associated with repeated use of the same needle?

  • Enhanced tissue integrity at the puncture site.
  • Dulling of the needle tip and micro tissue damage. (correct)
  • Improved efficiency in puncturing tissue.
  • Lower risk of contamination.
  • Which statement is correct regarding the tensile strength of silicone and polyurethane catheters?

  • Both materials have equal tensile strength properties.
  • Silicone has higher tensile strength compared to polyurethane.
  • Polyurethane catheters have lower tensile strength than silicone.
  • Polyurethane minimizes the outer/inner diameter ratio due to higher tensile strength. (correct)
  • Why are all IV devices manufactured in the USA required to be radiopaque?

    <p>To facilitate the visualization of catheter tip location.</p> Signup and view all the answers

    What can alcohol potentially do to certain types of polyurethane catheters?

    <p>Act as a solvent possibly causing degradation.</p> Signup and view all the answers

    What is crucial for achieving optimal outcomes in vascular access device placement?

    <p>Early consultation between the vascular access specialist and the patient</p> Signup and view all the answers

    Which factor is NOT recommended to be assessed during patient evaluation for vascular access device selection?

    <p>Type of health insurance held by the patient</p> Signup and view all the answers

    In the pediatric population, which of the following is particularly important to minimize during vascular access procedures?

    <p>Number of venipuncture attempts</p> Signup and view all the answers

    Which of the following conditions is a valid indication for vascular access?

    <p>Medication administration</p> Signup and view all the answers

    How is the French size (Fr) of a catheter measured?

    <p>By the external diameter of the catheter in mm</p> Signup and view all the answers

    What should be taken into account regarding the patient's vascular assessment?

    <p>Potential impact on daily activities and lifestyle</p> Signup and view all the answers

    Which of the following therapies would not require vascular access?

    <p>Diagnostic imaging</p> Signup and view all the answers

    What factor might limit device selection in the pediatric population?

    <p>Smaller vessel size and difficult visualization</p> Signup and view all the answers

    What is a contraindication for using a peripheral catheter?

    <p>Administration of irritant medications</p> Signup and view all the answers

    Which of the following veins is recommended for peripheral catheter insertion?

    <p>Basilic vein</p> Signup and view all the answers

    In which scenario should a peripheral catheter be considered for use?

    <p>Single dose vesicant administration under clinician supervision</p> Signup and view all the answers

    Which of the following techniques can be used for peripheral catheter insertion?

    <p>Catheter-over-needle technique</p> Signup and view all the answers

    What depth consideration should be taken when using ultrasound for catheter placement?

    <p>At least 50% of the catheter length should dwell in the vein</p> Signup and view all the answers

    Which statement correctly describes the relationship between catheter size and internal diameter?

    <p>Larger gauge sizes result in smaller internal diameters.</p> Signup and view all the answers

    What is a key characteristic of needles used in medical procedures?

    <p>They come in different lengths and bevels for varied applications.</p> Signup and view all the answers

    Which of the following materials is characterized by high tensile strength and is less affected by chemical solvents?

    <p>Silicone</p> Signup and view all the answers

    Why must ethanol lock application be carefully considered when using polyurethane catheters?

    <p>Some polyurethane types may degrade when in contact with alcohol.</p> Signup and view all the answers

    Which characteristic of catheter materials is specifically required for IV devices manufactured in the USA?

    <p>They must be radiopaque for visualization.</p> Signup and view all the answers

    What is a primary indication for the use of peripheral IV catheters?

    <p>Administration of non-irritant medications for 6 days or less</p> Signup and view all the answers

    Which of the following is a contraindication for using a peripheral catheter?

    <p>Infusates with osmolarity greater than 900 mOsm/L</p> Signup and view all the answers

    Which veins are preferred for peripheral catheter insertion?

    <p>Cephalic, Basilic, and Median veins of the arms</p> Signup and view all the answers

    Which factor should be avoided when selecting a site for peripheral IV catheter placement?

    <p>Veins affected by venous thrombosis</p> Signup and view all the answers

    What is a primary recommendation when using ultrasound for catheter placement?

    <p>The vessel's depth should allow for more than 50% of the catheter length in the vein</p> Signup and view all the answers

    What factor is essential for enhancing the safety and effectiveness of vascular access device (VAD) placement?

    <p>Consultation between the vascular access specialist and the patient or family</p> Signup and view all the answers

    Assessing which of the following is NOT typically included when evaluating a pediatric patient for vascular access?

    <p>Previous medication regimens</p> Signup and view all the answers

    Which of the following statements about device selection for pediatric patients is correct?

    <p>Clinicians need specialized training to manage vascular access in children</p> Signup and view all the answers

    Which of the following is a recognized indication for requiring vascular access?

    <p>Total or partial parenteral nutrition</p> Signup and view all the answers

    How is the French size (Fr) of a catheter determined?

    <p>By using the external diameter in mm multiplied by 3</p> Signup and view all the answers

    Which of the following factors is critical to consider in a patient's assessment for vascular access device selection?

    <p>Patients' understanding of their diagnosis and therapy</p> Signup and view all the answers

    What is one of the pediatric considerations that may impact vascular access device selection?

    <p>Multiple previous venipuncture complications</p> Signup and view all the answers

    When selecting a vascular access device, which of the following is a common complication that may arise?

    <p>Vascular access associated complications</p> Signup and view all the answers

    Study Notes

    Device Selection - General

    • Early consultation between the vascular access specialist and patient/family is crucial for optimal outcomes.
    • Reviewing patient variables (at admission) and projected therapies helps with timely and appropriate device insertion.
    • This reduces complications and ensures safe delivery of treatments.
    • Consider patient preferences, daily activities, and lifestyle when selecting the device.
    • Understanding of diagnosis and therapy is crucial for patient and caregiver.
    • Early consultation ensures the correct device is placed in the right location at the right time preserving vessel health.

    Pediatric Considerations

    • Device selection may be limited due to smaller vessel size in children, impacting visualization and palpation.
    • Multiple attempts, previous complications, and developmental stage are considerations.
    • Clinicians need specific training for pediatric vascular access.
    • Minimizing venipuncture attempts reduces pain and anxiety, preserving vessels.
    • Assessment of age, size, vascular access sites, reason for therapy, duration of therapy, activity and mobility, cognitive ability, gross and fine motor skills, and body image is necessary

    Indications for Vascular Access

    • Hydration
    • Medication administration
    • Total/partial parenteral nutrition (TPN/PPN)
    • Chemotherapeutic agents
    • Blood/blood components
    • Clinical/diagnostic needs (monitoring, etc).
    • Plasmapheresis/Aquapheresis/Hemodialysis
    • Frequent blood sampling in difficult access patients
    • Therapeutic phlebotomy

    Device Facts

    • French Scale (Fr): Measures external diameter of a catheter. Larger Fr numbers indicate larger diameters.
    • Gauge Scale (g/ga): Measures inner diameter. Smaller gauge numbers indicate smaller diameters.
    • Catheter sizes range from neonatal (1.2 Fr) to dialysis (15 Fr).
    • Needle characteristics include single use, various lengths, and bevels. Repeated use can cause damage, site contamination, and dullness.

    Peripheral Catheters

    • Short and long peripheral IV catheters are used.
    • Catheter lengths vary from 0.56" to 2.5" (14mm to 10cm).
    • Insertion methods include catheter-over-needle, accelerated, or modified Seldinger.
    • Suitable for infusions expected to last 6 days or less.
    • Non-irritant and non-vesicant medications are preferred.
    • Avoiding areas of flexion (hand, wrist, antecubital fossa) is important during insertion, especially with ultrasound guidance.

    Contraindications for Peripheral Catheters

    • Therapies expected to last longer than 6 days.
    • Infusions with osmolarity greater than 900 mOsm/L.
    • Vesicants/irritant medications.
    • Placement in compromised areas (e.g. thrombosis, fracture, infection).
    • Veins in the same arm as mastectomy, A/V fistula or graft.
    • Avoid vessels in the lower extremities in adults.

    Insertion Procedures

    • Follow manufacturer's instructions and the aseptic non-touch technique.
    • Perform skin antisepsis.
    • Limit attempts per healthcare provider (e.g. 2 attempts per provider to a maximum of 4 attempts).
    • Ensuring at least 50% of the catheter length is within the vein during insertion length considerations are important
    • Consider using visualization technology, particularly for difficult cases or when the vessels are difficult to visualize.
    • Use proper anatomical landmarks and guidelines during insertion.

    Supplies

    • Catheter
    • Skin antiseptic
    • Gloves (consider sterile)
    • Extension sets
    • Needleless connectors
    • Normal saline flush
    • Dressing (semi-permeable/antimicrobial)
    • Skin adhesive/protectant
    • Tissue adhesive
    • Stabilization devices
    • Alcohol lock should be considered when using polyurethane catheters
    • Avoid using alcohol on all devices as it can act as a solvent and may cause degradation

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    Description

    Test your knowledge on vascular access devices, including catheter sizes, potential risks, and best practices in placement. This quiz covers important topics related to pediatric considerations and materials used in catheter manufacturing. Discover the nuances of ensuring safe and effective vascular access.

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