You are caring for a patient who had surgery to remove a cancerous brain tumor yesterday.

Today you notice that your patient's urine output (UOP) has been decreasing, and now there has been no UOP for the last several hours from your patient's Foley catheter.

The patient had blood labs drawn an hour ago and their serum sodium is Na 124.

You suspect your patient has developed what complication?

Choice A rationale

The patient's initial unconsciousness, followed by a lucid interval and then declining consciousness (appearing to fall asleep, unable to verbally reply), is a classic presentation of an epidural hematoma. This condition requires immediate medical attention as expanding hematomas can lead to brain herniation. Notifying the MD and preparing for a burr-hole procedure to relieve intracranial pressure is the highest priority to prevent irreversible brain damage.

Choice B rationale

While pain management is important, it is not the priority in a patient with a rapidly deteriorating neurological status. Administering pain medication without addressing the underlying intracranial pathology could mask critical neurological signs and delay life-saving interventions. The immediate concern is the potential for brain compression, not comfort.

Choice C rationale

Placing the patient on a nasal cannula at 2 Lpm for a patient with deteriorating consciousness is insufficient and potentially inappropriate. If the patient's respiratory drive is compromised due to increased intracranial pressure, more aggressive airway management, potentially intubation, might be required. Oxygenation should be assessed and managed, but it is not the initial priority without evaluating the airway and breathing comprehensively in a declining patient.

Choice D rationale

Obtaining a stat EKG is not the priority action in a patient presenting with acute neurological deterioration following head trauma. While cardiac function is important, the immediate threat to life in this scenario is neurological compromise due to potential intracranial bleeding and rising intracranial pressure. An EKG would be a secondary assessment after stabilizing the primary neurological issue.

Choice A rationale

Suctioning should be performed only when clinically indicated, such as in the presence of visible secretions, adventitious breath sounds, or a decline in oxygen saturation. Routine, unnecessary suctioning can cause mucosal trauma, hypoxemia, and increased risk of infection. This "as needed" approach minimizes potential complications and preserves airway integrity.

Choice B rationale

Hyperoxygenating the patient with 100% oxygen for 30-60 seconds prior to suctioning helps to create an oxygen reserve in the lungs and minimize the risk of hypoxemia during the procedure. Suctioning can transiently reduce lung volumes and gas exchange, and pre-oxygenation mitigates this by saturating hemoglobin and dissolved plasma oxygen.

Choice C rationale

Suctioning for longer than 10-15 seconds on each pass significantly increases the risk of hypoxemia, atelectasis, and vagal stimulation leading to bradycardia. Prolonged suctioning depletes oxygen from the airways and can cause physiological distress. Brief passes allow for reoxygenation between attempts and minimize adverse events.

Choice D rationale

Performing hand hygiene prior to suctioning is a critical infection control measure. This practice reduces the transmission of microorganisms from the healthcare provider's hands to the patient's airway, thereby preventing healthcare-associated infections like ventilator-associated pneumonia. Adherence to strict aseptic technique is paramount in airway management.

Choice E rationale

Suctioning should never be performed while inserting the catheter into the artificial airway. Applying negative pressure during insertion can cause significant mucosal trauma, bleeding, and increased risk of infection by pulling tissue into the catheter lumen. Suction should only be applied intermittently and during withdrawal of the catheter, to remove secretions effectively and safely.