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Difficulty: HardEstablishing Priorities

Simultaneous vital sign alerts and assessment data are transmitted to the centralized monitor on an adult medical-surgical unit. Which client presentation dictates the most immediate physical evaluation by the nurse?

  1. A
    A 62-year-old client receiving a continuous intravenous heparin infusion whose most recent activated partial thromboplastin time (aPTT) is 94 seconds.
  2. B
    A 72-year-old client with chronic obstructive pulmonary disease (COPD) whose arterial blood gas reveals a pH of 7.36 and a PaCO2 of 50 mm Hg.
  3. A 24-year-old client admitted with a concussion who appears to be sleeping soundly, with a heart rate of 48 beats/min and a blood pressure of 176/54 mm Hg.Answer
  4. D
    A 38-year-old client receiving intravenous fluids for dehydration whose heart rate increased from 86 to 104 beats/min with a blood pressure of 112/74 mm Hg.

Answer

The 24-year-old client with a concussion, a heart rate of 48 beats/min, and a blood pressure of 176/54 mm Hg.
The correct answer identifies a client exhibiting Cushing's triad (bradycardia and a widening pulse pressure) along with a depressed level of consciousness (appearing to be 'sleeping soundly' after a head injury). This triad is a late, grave sign of severely increased intracranial pressure (ICP) indicating impending brainstem herniation. This constitutes an absolute medical emergency that takes immediate precedence over all other presented scenarios.

Step-by-Step Solution

1
Evaluate the clinical data for the client with the head injury.
The client has significant bradycardia (48 beats/min) and a dangerously widened pulse pressure (systolic 176 minus diastolic 54 = 122 mm Hg), while presenting as 'sleeping soundly'.
Identifying abnormal vital sign patterns in clients with neurological injuries is the first step in emergency triage.
2
Correlate the findings with pathophysiological emergencies.
The combination of profound bradycardia, widening pulse pressure, and a depressed level of consciousness after a head trauma forms Cushing's triad.
Cushing's triad is a critical indicator of severely increased intracranial pressure that is compressing the brainstem.
3
Compare the severity of this emergency against the other clients' conditions.
Impending brain herniation represents an immediate, catastrophic threat to life. The other clients present with an expected chronic ABG finding, a slightly supratherapeutic lab value without bleeding, and mild compensatory tachycardia.
The prioritization framework dictates that immediate, unexpected threats to life (ABCs and severe neurological deterioration) must always be addressed first.

Key Concept

Cushing's triad (bradycardia, widening pulse pressure, and altered respirations or level of consciousness) is a late sign of increased intracranial pressure indicating impending brainstem herniation, requiring immediate life-saving intervention.
Estimated Time:1m 30s
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Establishing Priorities

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