A patient has been put on Contact Precautions. The patient’s family is extremely apprehensive about visiting due to fear of being “contaminated” by the patient. What is the best course of action for the nurse?

Choice A rationale:
While verifying the suitability of the solution for a central line is important, it is not the immediate next step after insertion. Solutions that are incompatible with central lines can cause damage to the catheter or precipitate in the bloodstream, leading to serious complications. However, confirming placement takes priority to ensure the line is correctly positioned before any infusion is initiated.
Choice B rationale:
Double-checking medication calculations is a crucial safety measure, but it is not the most urgent step after central line insertion. Medication administration can only occur after confirming proper placement to avoid unintended infusion into incorrect sites or tissues, potentially leading to tissue damage or ineffective treatment.
Choice D rationale:
Initiating the prescribed infusion via the new access is the desired outcome, but it cannot be done before confirming placement. Infusing medications or fluids through a misplaced line can have severe consequences, such as:
Infiltration of medications into surrounding tissues, causing inflammation, pain, and potential necrosis.
Administration of medications into unintended areas, such as the pleural space or the vasculature of the head and neck, leading to potentially life-threatening complications.
Delay in the delivery of necessary medications or fluids if the line is not positioned correctly within the central venous system.
Choice C rationale:
Confirming placement with an x-ray is the essential next step to ensure the central line is in the correct position within the central venous system. This verification is crucial for several reasons:
Prevention of complications: Misplaced central lines can cause serious complications, such as pneumothorax (collapsed lung), hemothorax (blood in the pleural space), arrhythmias (irregular heartbeats), and nerve damage.
Accurate medication and fluid delivery: Proper placement ensures that medications and fluids are delivered directly into the central circulation, allowing for rapid and effective distribution throughout the body.
Safe and effective infusion: X-ray confirmation provides visual evidence of the line's position, guiding subsequent infusion practices and reducing the risk of errors.
Early identification of malposition: If the x-ray reveals a misplaced line, adjustments can be made promptly to prevent potential complications and ensure appropriate infusion.

Choice A rationale:
Hourly neurologic checks are not the priority intervention for a client with hypokalemia. While hypokalemia can cause neuromuscular changes, such as muscle weakness and cramps, these are not typically the most immediate or life-threatening concerns.
Cardiac monitoring is crucial to detect and manage potentially fatal arrhythmias promptly.

Neurologic checks can be implemented as part of the overall assessment and monitoring plan, but they should not supersede cardiac monitoring in this situation.
Choice C rationale:
Seizure precautions are not routinely initiated for clients with hypokalemia unless there is a specific seizure history or other neurological concerns.
Hypokalemia can cause neuromuscular irritability, but it does not directly trigger seizures in most cases. The priority remains cardiac monitoring due to the significant risk of arrhythmias.
Choice D rationale:
Administering oxygen via face mask might be considered if the client exhibits respiratory distress or hypoxemia. However, it's not the immediate priority intervention for hypokalemia without accompanying respiratory compromise.
Hypokalemia primarily affects cardiac conduction, necessitating prompt cardiac monitoring.
Oxygen therapy can be administered if clinically indicated, but it does not address the underlying electrolyte imbalance.
Rationale for the correct answer, B:
Initiating cardiac monitoring is the most crucial nursing action for a client with a serum potassium level of 2.8 mEq/L. Here's a detailed explanation:
Hypokalemia's significant cardiac effects:
Potassium is essential for normal cardiac conduction and muscle contraction. Hypokalemia disrupts the electrical activity of the heart, potentially leading to:
Arrhythmias (irregular heartbeats), including potentially fatal ones like ventricular tachycardia or fibrillation. Electrocardiogram (ECG) changes, such as ST segment depression, T wave flattening or inversion, and prominent U waves. Cardiac monitoring's role:
Continuously tracks the heart's electrical activity. Enables early detection of arrhythmias.
Facilitates prompt intervention to prevent life-threatening complications. Specific benefits of cardiac monitoring in hypokalemia:

Allows for early identification and treatment of arrhythmias, potentially preventing cardiac arrest. Guides electrolyte replacement therapy, ensuring appropriate potassium administration.
Assesses the effectiveness of interventions, ensuring the patient's stability.