A nurse is caring for a client who has a peripherally inserted central catheter (PICC) for the administration of total parenteral nutrition (TPN). The transparent dressing over the insertion site requires replacement. Which of the following actions should the nurse take?
Aspirate the catheter to check for a brisk blood return.
Use sterile technique for the procedure.
Cleanse the insertion site with hydrogen peroxide.
Flush the TPN port with 20 mL of 0.9% sodium chloride.
The Correct Answer is B
Choice A reason: Aspirating the catheter to check for a brisk blood return is not typically recommended as a routine action when replacing the dressing of a PICC line used for TPN. This action is performed to verify patency and placement of the catheter, but it is not directly related to the dressing change procedure.
Choice B reason: Using sterile technique for the procedure is essential when replacing the dressing of a PICC line. Maintaining sterility is crucial to prevent infection, as the PICC line provides direct access to the central venous system. The nurse should use sterile gloves and follow aseptic protocols to minimize the risk of introducing pathogens at the catheter insertion site.
Choice C reason: Cleansing the insertion site with hydrogen peroxide is not recommended for PICC line care. Hydrogen peroxide can be damaging to the tissue and may delay healing. Instead, a chlorhexidine-based antiseptic is typically used to clean the skin around the insertion site during dressing changes to reduce microbial flora and prevent infection.
Choice D reason: Flushing the TPN port with 20 mL of 0.9% sodium chloride is a practice used to maintain catheter patency, but it is not part of the dressing change procedure. Flushing is usually done before and after administering medication or nutrition, not specifically during a dressing change.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
Choice A reason: Laryngeal edema is a classic sign of anaphylaxis, a severe and potentially life-threatening allergic reaction. It can lead to difficulty breathing and requires immediate medical attention. Anaphylaxis can occur with any medication, including captopril, especially on initial exposure.
Choice B reason: Fever is not typically a sign of anaphylaxis. While it can be a symptom of various infections or inflammatory processes, it is not indicative of an immediate hypersensitivity reaction.
Choice C reason: Hypertension, or high blood pressure, is not a sign of anaphylaxis. In fact, during an anaphylactic reaction, blood pressure often drops significantly, a condition known as anaphylactic shock.
Choice D reason: Arrhythmia, or an irregular heartbeat, can be associated with various cardiac conditions but is not a specific indicator of anaphylaxis. While severe allergic reactions can affect heart rate, they are more likely to cause hypotension than arrhythmia.
Correct Answer is C
Explanation
Choice A reason: Digoxin is primarily used to treat atrial fibrillation and heart failure. It is not the first-line medication for sinus bradycardia with ST-segment elevation, as it can further slow down the heart rate.
Choice B reason: Sotalol is a beta-blocker and an antiarrhythmic medication that can be used to treat ventricular arrhythmias and maintain sinus rhythm in atrial fibrillation. However, it is not indicated for sinus bradycardia and could exacerbate the condition.
Choice C reason: Atropine is the medication of choice for symptomatic sinus bradycardia. It works by blocking the action of the vagus nerve on the heart, leading to an increased heart rate. Atropine can quickly reverse the symptoms of bradycardia, such as dizziness and shortness of breath.
Choice D reason: Lidocaine is an antiarrhythmic medication used to treat ventricular arrhythmias. While it can be used in acute settings, it is not the first choice for sinus bradycardia with ST-segment elevation.
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