To decrease the risk of secondary exposure to a chemical that was used in a terrorist attack, which of the following initial steps must be implemented?

Choice A rationale

Restricting sodium intake to less than 2000 mg per day is a standard intervention for managing ascites and fluid volume overload in patients with cirrhosis. However, sodium restriction does not directly address or treat the cognitive and behavioral changes associated with worsening liver function. While important for overall fluid management, this action is secondary to the urgent need to evaluate the patient for neurotoxic accumulations affecting brain function and mental status.

Choice B rationale

Providing a calm and therapeutic environment is a supportive nursing intervention that can help reduce patient agitation. However, in the context of cirrhosis, behavioral changes are likely physiological rather than purely environmental. Failing to report these changes to a provider in favor of only modifying the environment ignores the underlying medical emergency of rising ammonia levels. Scientific management must prioritize the physiological cause of the altered mentation over simple environmental modifications.

Choice C rationale

Alcoholic hepatitis is an acute inflammatory condition of the liver caused by heavy alcohol consumption, often presenting with jaundice, fever, and liver tenderness. While this patient has a history of alcohol use, the specific new onset of cognitive and behavioral changes is more characteristic of hepatic encephalopathy than a new flare of hepatitis. Reporting for a hepatitis assessment is less precise and less urgent than reporting for a life-threatening neuropsychiatric complication.

Choice D rationale

Hepatic encephalopathy is a reversible neuropsychiatric syndrome caused by liver failure and the accumulation of neurotoxins, primarily ammonia, in the blood. Ammonia levels normally range from 15 to 45 units/dL, but in cirrhosis, the liver cannot convert it to urea. This leads to cerebral edema and altered neurotransmission, manifesting as subtle confusion or irritability. Reporting these signs immediately is essential so that treatments like lactulose can be initiated to lower toxic levels.

Choice A rationale

According to the ABC (Airway, Breathing, Circulation) priority framework, ensuring adequate oxygenation is the first priority in a trauma patient showing signs of shock. Tachycardia and hypotension suggest that the tissues are already deprived of oxygen. Administering 100 percent oxygen via a non-rebreather mask maximizes the oxygen carrying capacity of the remaining hemoglobin. This immediate intervention supports myocardial and cerebral function while other circulatory interventions, such as intravenous access and fluid resuscitation, are being prepared and implemented.

Choice B rationale

Typing and crossmatching blood is a critical step for a patient with potential internal bleeding from a motor vehicle crash. However, this is a laboratory process that takes time and falls under the "Circulation" category of trauma assessment. While blood products will likely be needed due to the symptoms of hypotension and tachycardia, the immediate administration of oxygen takes precedence to support cellular metabolism while the blood bank prepares the necessary units for the subsequent transfusion.

Choice C rationale

Continuous cardiac monitoring is essential for identifying arrhythmias caused by myocardial ischemia, electrolyte imbalances, or catecholamine surges during shock. While necessary for ongoing assessment, it is a diagnostic tool rather than a life-saving intervention. It follows the establishment of an airway, breathing support, and the initiation of circulatory access. Placing leads on a patient does not immediately improve their physiological status as directly as providing high-flow oxygen or starting intravenous fluid resuscitation.

Choice D rationale

Inserting large-bore IV catheters is a high priority for fluid resuscitation in a patient with cool, clammy skin and hypotension. Two 14-gauge catheters allow for the rapid administration of crystalloids and blood products. However, in the standard emergency hierarchy, breathing and oxygenation interventions are performed simultaneously or slightly before circulatory access. Oxygen can be applied instantly, whereas IV insertion is a procedure that requires more time. Oxygenation remains the first physiological priority to prevent further tissue damage.