A nurse is assessing a client who has hypokalemia and a new prescription for potassium chloride. Which of the following findings should the nurse report to the provider?

Stop the infusion.

Disconnect the IV tubing from the IV hub.

Aspirate the medication from the IV catheter.

Elevate the affected extremity.

Brief Introduction:

Extravasationis a severe clinical complication where a vesicantmedication leaks from the intravascular space into the surrounding dermal or subcutaneous tissue. Vesicants, such as certain chemotherapeutic agents, cause cellular necrosis, tissue sloughing, and permanent nerve damage upon contact with extravascular structures. Emergency management focuses on immediate cessation of the insult and the removal of as much residual toxin as possible to mitigate localized destruction.

Rationale:

A. Disconnecting the IV tubingfrom the IV hub is the second priority action. Once the pump is deactivated, the tubing must be removed while leaving the catheter in place to serve as a conduit for further intervention. This step prepares the site for aspirationand prevents any further residual medication within the line from being accidentally flushed into the compromised tissue.

B. Elevating the affected extremityis the final step in the immediate response sequence. Elevation utilizes gravity to promote venous returnand lymphatic drainage, which helps reduce localized edema and limits the spread of the vesicant within the interstitial spaces. This maneuver is part of supportive care and should only be performed after the chemical threat has been physically addressed.

C. Stop the infusionis the absolute first action the nurse must perform the moment extravasation is suspected. Continued administration of a vesicant exponentially increases the volume of tissue exposed to the toxin, leading to wider areas of necrosis. Halting the flow immediately limits the scope of the injury and is the highest priority for limb preservation and safety.

D. Aspirate the medicationfrom the client's IV catheter is performed after the tubing is disconnected but before the catheter is removed. Using a syringe to pull back on the hub allows the nurse to extract residual vesicant still sitting in the catheter and the immediate extravasation pocket. This critical step reduces the total concentration of the drug remaining in the tissue, potentially decreasing the severity of the subsequent chemical burn.

Citalopram is a selective serotonin reuptake inhibitor(SSRI) used to manage major depressive disorder by increasing serotonin levelsin the synaptic cleft. While generally well-tolerated, SSRIs can cause serotonin syndrome, a potentially fatal condition characterized by altered mental status, autonomic instability, and neuromuscular hyperactivity. Early detection of neurological changes is vital.

Rationale:

A.Bruxism, or involuntary teeth grinding, is a known side effect of SSRIs that typically occurs during sleep. While it can cause dental wear and jaw pain, it is not a life-threatening emergency requiring immediate reporting. The nurse can suggest a mouth guard or a dosage adjustment during a routine follow-up with the provider to manage this specific discomfort.

B.Insomnia is a frequent side effect of citalopram due to the stimulating effects of increased serotonin in certain brain pathways. While significant for the client's quality of life, it is an expected reaction that often subsides after several weeks of therapy. It does not carry the same degree of clinical urgency as symptoms indicating acute toxicity or systemic physiological distress.

C.Weight loss can occur during the initial phase of citalopram therapy due to decreased appetite or nausea. While the nurse should monitor the client's nutritional intake and weight over time, it is a gradual process rather than an acute crisis. It is considered a manageable side effect that rarely requires immediate medical intervention unless the weight loss becomes extreme.

D.Confusion is a priority finding because it may indicate the onset of serotonin syndromeor significant hyponatremia, which are serious complications of SSRI therapy. Altered mental status is a "red flag" symptom that suggests systemic toxicity rather than a benign side effect. The nurse must report confusion immediately to ensure the client is evaluated for potentially life-threatening drug reactions.