Surgically implanted by a surgeon or interventional radiologist using local anesthesia, an implanted port, also known as a vascular access device or a vascular access port, is a type of central venous access device. It consists of a Silastic or polyurethane catheter attached to a reservoir, which is covered with a self-sealing silicone septum. The practitioner places the catheter in the central venous system and typically implants the reservoir in a subcutaneous pocket in the upper anterior chest wall. Alternatively, the practitioner may place the reservoir in the upper arm, abdomen, side, back, or lower extremity.1
Use of an implanted port is most common when some type of long-term IV therapy is required and an external central venous device isnt appropriate or desirable. Depending on patient needs, the type of port selected may have one or two lumens.1,2 A port can be used immediately after placement is confirmed, although some edema and tenderness may persist for about 72 hours, making the device initially difficult to palpate and slightly uncomfortable for the patient.3 (See Understanding implanted ports.)
For a patient who requires repeated computerized tomography scans with contrast, the practitioner may implant a port specially developed to withstand the high pressures of power injectors. Use of a power injector requires a specialized access needle and tubing approved for power injection to ensure that the tubing and connections wont rupture or separate.4
Central venous therapy increases the risk of complications, such as pneumothorax, vascular catheterassociated infection, sepsis, thrombus formation, and vessel and adjacent organ perforation (all life-threatening conditions). Because of age-related changes in the immune system, older adults are more susceptible to infection than younger adults. Remote infections can also increase the risk of vascular catheterassociated bloodstream infections in older adults.5
HOSPITAL-ACQUIRED CONDITION ALERT The Centers for Medicare and Medicaid Services considers vascular catheterassociated infection a hospital-acquired condition because it can be reasonably prevented using a variety of best practices. Follow evidence-based infection prevention practices, such as properly preparing the intended insertion site, instituting maximal barrier precautions, and following sterile technique, to reduce the risk of vascular catheterassociated infections.6,7,8,9,10,11
For Assisting With Insertion
Insertion checklist sterile gloves sterile gown masks caps gowns sterile drapes sterile towel chlorhexidine-based antiseptic sponges noncoring needles of appropriate type and gauge extension tubing set implanted port and guidewire local anesthetic (lidocaine without epinephrine) prefilled syringes of heparin flush solution prefilled syringes of preservative-free normal saline flush solution sterile occlusive dressings (gauze or transparent semipermeable membrane) needleless connector(s) skin closure devices (suture material, surgical glue, adhesive skin closures) X-ray equipment labels fluid-impermeable pad sign stating STERILE PROCEDURE IN PROGRESS. DO NOT ENTER. Optional: prescribed prophylactic antibiotics, general anesthetic agent, other surgical equipment, ultrasound device with sterile probe cover, sterile ultrasound gel, disinfectant-containing end cap, chlorhexidine-impregnated sponge dressing, antiseptic soap and water, single-patient-use scissors, disposable-head surgical clippers.
For Accessing a Top-Entry Port
Gloves masks sterile gloves sterile drape noncoring needle with attached extension set tubing6,12 antiseptic pad or applicator (chlorhexidine-based preferred; tincture of iodine, povidone-iodine, or alcohol if chlorhexidine is contraindicated) sterile 10-mL syringes prefilled with preservative-free normal saline solution sterile transparent semipermeable dressing sterile needleless connector engineered stabilization device labels Optional: prescribed local anesthetic, prescribed locking solution such as prefilled heparinized saline flush solution syringe (10 units/mL),6,12 ordered IV fluid, primed IV administration set, sterile 2" × 2" (5 cm × 5 cm) gauze, sterile tape, chlorhexidine-impregnated sponge dressing, disinfectant-containing end cap.
Some facilities use an implantable port access kit.
For Obtaining a Blood Sample
Gloves antiseptic pads (chlorhexidine-based, povidone iodine, or alcohol) appropriate-size syringes or needleless blood collection tube holder 10-mL syringes prefilled with preservative-free normal saline solution (use a 10-mL syringe or a syringe specifically designed to generate lower injection pressure)13 blood collection tubes labels laboratory biohazard transport bag Optional: mask with face shield or mask and goggles, sterile IV end cap, 10-mL syringe, prefilled, containing prescribed locking solution (such as heparin lock solution), blood transfer unit, sterile needless connector, disinfectant-containing end cap, laboratory request form.
For Administering a Bolus Injection
Prescribed medication in a syringe gloves 10-mL syringes (or a syringe specifically designed to generate lower injection pressure) prefilled with preservative-free normal saline solution antiseptic pads (chlorhexidine-based, povidone iodine, or alcohol) Optional: 10-mL syringe prefilled with prescribed locking solution such as heparin lock solution (10 units/mL),13 disinfectant-containing end cap, noncoring needle, diluent, dextrose 5% in water, sedation scale, pulse oximeter and probe, capnography equipment.
For Administering a Continuous Infusion
Prescribed IV solution IV administration set IV pole gloves antiseptic pads (chlorhexidine-based, povidone iodine, or alcohol) 10-mL syringe (or a syringe specifically designed to generate low injection pressure) prefilled with preservative-free normal saline solution labels electronic infusion device (preferably a smart pump with dose-error reduction software) Optional: noncoring needle.
For a Dressing Change
Mask antiseptic (chlorhexidine preferred; tincture of iodine, povidone-iodine, or alcohol if the patient is sensitive to chlorhexidine) skin barrier solution sterile transparent semipermeable dressing or sterile 4" × 4" (10-cm × 10-cm) gauze pad and tape gloves sterile gloves label Optional: sterile drape, supplies for reaccessing the implanted port, chlorhexidine-impregnated sponge dressing, engineered stabilization device, sterile gauze or foam pad for padding under the wings of the noncoring needle, dressings and tape specially formulated for fragile skin.
Commercially prepared central venous access device dressing change kits that include most of the necessary equipment are available and are recommended.12
For Assisting With Removal
Gloves 10-mL prefilled syringe containing preservative-free normal saline flush solution (or a syringe specifically designed to generate lower injection pressure)4 10-mL prefilled syringe (or a syringe specifically designed to generate lower injection pressure)4 containing prescribed locking solution (preservative-free normal saline solution or heparinized saline flush solution [10 units/mL concentration])13 antiseptic pads (chlorhexidine and alcohol, alcohol, or tincture of iodine) sterile 2" × 2" (5 cm × 5 cm) gauze pad Optional: sterile cap, sterile gauze dressing, paper tape.
Inspect all IV equipment and supplies. If a product is expired, is defective, or has compromised integrity, remove it from patient use, label it as expired or defective, and report the expiration or defect as directed by your facility.14
For Assisting With Insertion
Confirm with the practitioner the size and type of the device and the insertion site. Using a prefilled syringe with preservative-free flush solution, prime the noncoring needle with the extension set. Use strict sterile no-touch technique for all priming, and ensure all tubing is free of air.4 After youve primed the tubing, recheck all connections for tightness. Make sure that sealed caps cover all open end.
For Administering a Bolus Injection
If needed, access the port using the appropriate noncoring needle. Review the medication monograph so that you know the actions, adverse effects, and administration rate of the medication youll be injecting.5,12,15
If needed, draw up the prescribed medication in the syringe and dilute it. Whenever possible, administer pharmacy-prepared or commercially available products.16,17 Many medications come in unit-dose syringes.
For Administering a Continuous Infusion
Review the patients medical record to determine the location of the implanted port and whether its currently accessed with a noncoring needle. If needed, access the port using the appropriate noncoring needle. Make sure the electronic infusion device is in good working order.18
For Obtaining a Blood Sample
If necessary, contact the laboratory for questions regarding specimen tubes, order of draw, and recommended transport environment for proper collection of the ordered tests.
Assisting With Insertion
Accessing a Top-Entry Port
NURSING ALERT If you cant aspirate blood return to confirm needle placement, have the patient change positions, raise the arms, cough, or perform the Valsalva maneuver to increase thoracic pressure and increase yield for a blood return. If you still cant obtain blood return or confirm needle placement, clamp the tubing and notify the practitioner before proceeding.12 (See Troubleshooting an implanted port.)
Obtaining a Blood Sample
Discard Method
Push-Pull Method
Completing the Procedure
Administering a Bolus Injection
NURSING ALERT Some bolus injections are considered high-alert medications because they can cause significant patient harm when used in error.79 If required by your facility, before administering a bolus injection, have another nurse perform an independent double-check to verify the patients identity and make sure you have the correct medication in the prescribed concentration, the medications indication corresponds with the patients diagnosis, the dosage calculations are correct and the dosing formula used to derive the final dose is correct, and the prescribed route of administration is safe and proper for the patient.80,81
NURSING ALERT After confirming patency of the vascular access device by using a 10-mL syringe (or a syringe specifically designed to generate lower injection pressure) filled with preservative-free normal saline solution, the medication can be administered by IV bolus injection in a syringe of appropriate size to measure and administer the required medication dose.13,82 Dont transfer the medication to a larger syringe.13
Administering a Continuous Infusion
Dressing Change
NURSING ALERT The noncoring needle should be changed at least every 7 days when the implanted port is being used for infusion.12
Assisting With Removal
If the patient is going home, thorough teaching about procedures, as well as follow-up visits from a home care nurse, will be needed to ensure safety and successful treatment. Tell the patient what type of port is in place, and explain the importance of carrying a port identification card.
If the patient will be accessing the port, explain that the most uncomfortable part of the procedure is the actual insertion of the needle into the skin. Once the needle has penetrated the skin, the patient will feel mostly pressure. Eventually, the skin over the port will become desensitized from frequent needle punctures. Until then, the patient may want to use a topical anesthetic.
Stress the importance of pushing the needle into the port until the patient feels the needle bevel touch the back of the port. Many patients tend to stop short of the back of the port, leaving the needle bevel in the rubber septum. Also stress the importance of monthly flushes when no more infusions are scheduled.
If possible, instruct a family member in all aspects of care. If the patient is receiving an infusion at home, teach the patient and family member about checking the dressing daily. Also instruct the patient to be careful to avoid needle dislodgement during activities of daily living, such as dressing, bathing, and using a seatbelt; to protect the site during bathing; and to immediately report pain, burning, stinging, or soreness at the site.4
Complications related to implantation include individual risk associated with local or general anesthesia, pneumothorax, perforation or laceration of vessel, air embolism, brachial plexus injury, infection, cardiac arrhythmia, and cardiac tamponade.2 A patient with an implanted port faces risks similar to those associated with other central venous access devices, including infection, infiltration or extravasation, thrombus formation, catheter malposition, and occlusion.12
Be alert for signs and symptoms of air embolism, such as sudden onset of dyspnea, gasping, breathlessness, weak pulse, increased central venous pressure, loss of consciousness, chest pain, jugular vein distention, wheezing, altered mental status, altered speech, numbness, paralysis, coughing, and tachyarrhythmias. If any of these signs or symptoms occurs, place the patient on the left side in the Trendelenburg position or in a left lateral decubitus position and notify the practitioner.92 Also be alert for signs and symptoms of sepsis and catheter-related infection (redness, drainage, edema, or tenderness at the exit site).11
Record your assessment findings and interventions. Document the type, amount, rate, and duration of the infusion; appearance of the site; and any adverse reactions. Record the date and time you notified the practitioner of any complications, the practitioners name, prescribed interventions, and the patients response to those interventions. Note the type and amount of flush solution used, the presence or absence of blood return, any resistance to flushing, and the interventions implemented.55
Document the date and time you drew the sample and the volume of blood you withdrew. Include the tests for which you drew the sample and the time you sent the sample to the laboratory. Document the patency of the catheter, the absence of signs or symptoms of complications, the presence of a blood return upon aspiration, the lack of resistance when flushing, and the amount and types of flushes you used. Also note the patients tolerance of the procedure.
When administering a bolus injection, document the medications strength, dose, route and rate of administration, and date and time of administration. Record the patients response to the medication as well as any adverse reactions, the date and time the practitioner was notified, prescribed interventions, and the patients response to those interventions. Record the type and amount of flush solution used. Document the presence of a blood return and the condition of the site.
Record the date and time of each dressing change and your assessment findings during the dressing change, including the condition of the skin, dressing type, type of stabilization device (if any), site care provided, and any mechanical problems.
Document teaching provided to the patient and family (if applicable), their understanding of that teaching, and any need for follow-up teaching.
Strategies to prevent central lineassociated bloodstream infections in acute care hospitals
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