Choice A rationale:
While PICCs are typically intended for shorter-term use (up to 12 weeks), the fact that a PICC has been in place for 4 weeks is not, in itself, an immediate cause for concern. Regular assessment of the catheter and site is crucial, but the duration of placement alone does not warrant immediate attention.
Choice B rationale:
While it's generally recommended to change PICC dressings every 7 days, a dressing that is 3 days old is not an immediate emergency. The nurse should prioritize changing the dressing as soon as possible, but it does not require the same level of urgency as other potential complications.
Choice C rationale:
A missing securement device is a concern because it can increase the risk of catheter dislodgement or migration. However, it does not necessarily indicate an immediate threat to the patient's well-being. The nurse should promptly address the missing securement device, but it would not be the most pressing issue compared to swelling in the extremity.
Choice D rationale:
Swelling in the upper extremity where the PICC is located is a significant finding that demands immediate attention. It can be a sign of several serious complications, including:
Thrombosis: A blood clot within the vein, which can obstruct blood flow and lead to pain, swelling, and potentially more severe consequences like deep vein thrombosis (DVT) or pulmonary embolism (PE).
Infection: Inflammation and infection at the insertion site or within the bloodstream, which can cause swelling, redness, warmth, and pain. If left untreated, infection can progress to sepsis, a life-threatening condition.
Phlebitis: Inflammation of the vein, which can cause pain, redness, and swelling along the vein.
Infiltration: Leakage of fluids or medications into the surrounding tissue, leading to swelling and discomfort.
Prompt action is crucial in these cases to prevent further complications and ensure patient safety. The nurse should immediately notify the appropriate healthcare provider, initiate necessary interventions, and closely monitor the patient's condition.

Choice A rationale:
Incorrect. Deep-breathing exercises could potentially worsen stridor. Stridor is a high-pitched, wheezing sound caused by a partial obstruction of the upper airway. Deep breathing can increase airflow through the narrowed airway, making the stridor more pronounced and potentially worsening the obstruction. In severe cases, it could lead to complete airway obstruction and respiratory distress.
Risk of aggravation: Deep-breathing exercises could aggravate the underlying cause of stridor, such as laryngeal edema or vocal cord dysfunction, by increasing inflammation or muscle tension in the airway.
Delay in definitive treatment: Focusing on deep-breathing exercises might delay more definitive interventions, such as intubation, which might be necessary to secure the airway and prevent respiratory failure.
Choice B rationale:
Incorrect. While albuterol nebulizer therapy can be helpful for bronchospasm, it is not the first-line treatment for stridor. Stridor is typically caused by an upper airway obstruction, and albuterol primarily targets the lower airways (bronchioles).
Limited effectiveness: Albuterol might not be effective in reducing stridor caused by upper airway obstruction, as it does not directly address the narrowing of the airway.
Potential for adverse effects: Albuterol can cause tachycardia, tremors, and anxiety, which could further complicate the patient's condition.
Choice C rationale:
Not the most immediate action. While calling a Rapid Response might be necessary if the patient's condition deteriorates, the first priority is to secure the airway and ensure adequate ventilation.
Time-consuming: Activating a Rapid Response team can take several minutes, and the patient's condition might not allow for that delay.
Choice D rationale:
Prioritizes airway management: Intubation is the most effective way to secure the airway and ensure adequate ventilation in a patient with stridor. It bypasses the obstruction and allows for controlled delivery of oxygen and ventilation.
Addresses potential for deterioration: Stridor can rapidly progress to complete airway obstruction, so prompt preparation for intubation is crucial to prevent respiratory failure.
Involves the primary healthcare provider: Consulting the primary health care provider ensures timely decision-making, appropriate medication administration (such as sedatives or paralytics for intubation), and coordination of care.