The nurse is monitoring for signs of increased intracranial pressure (ICP) in a client who attempted suicide by jumping from a tenth floor balcony. The client is intubated and mechanically ventilated. Which intervention should the nurse implement to minimize rises in ICP?

Answer:

Potential Condition:

Acute Adrenal Crisis

• The client has a history of Addison’s disease (chronic steroid use) and recent illness with vomiting, leading to decreased oral intake and medication noncompliance.
• Symptoms such as hypotension (80/50 mmHg), tachycardia (115 bpm), confusion, nausea, vomiting, and abdominal pain are classic signs of acute adrenal insufficiency.

Actions to Take:

Bolus Intravenous Fluids

• Fluid resuscitation with 0.9% normal saline is critical to restore intravascular volume and correct hypotension due to adrenal insufficiency.

Check Blood Glucose

• Hypoglycemia is a common complication of adrenal crisis due to cortisol deficiency, requiring close monitoring and possible glucose administration.

Parameters to Monitor:

Blood Pressure

• Hypotension is a hallmark of adrenal crisis and must be monitored closely to assess response to fluid resuscitation and steroid therapy.

Electrolytes

• Clients with adrenal crisis often have hyponatremia and hyperkalemia due to aldosterone deficiency, requiring frequent electrolyte monitoring.

Incorrect Choices:

Potential Conditions:

• Ketoacidosis: More common in diabetes, presents with high blood glucose and ketonuria.
• Diabetes Insipidus: Causes polyuria and dehydration but lacks hypotension and hyperkalemia.
• Myxedema: Linked to hypothyroidism, causing bradycardia and hypothermia, not hypotension and hyperkalemia.

Actions to Take:

• Hold hydrocortisone dose: Steroid replacement is necessary, not withholding it.
• Collect urine for a urinalysis: Not a priority; adrenal crisis is diagnosed via history, symptoms, and labs.
• Change intravenous fluids to 0.45%: Hypotension requires 0.9% normal saline, not hypotonic fluids.

Parameters to Monitor:

• Urine output: Useful but less critical than blood pressure and electrolytes in adrenal crisis.
• Thyroid stimulating hormone: Relevant for hypothyroidism, not adrenal insufficiency.
• Heart rate: Tachycardia is expected but is not the most critical indicator of improvement.

A. Observe vital signs sequences as a way of assessing for Cushing's triad. Cushing’s triad (hypertension with widened pulse pressure, bradycardia, and irregular respirations) is a late sign of increased intracranial pressure (ICP). While monitoring for it is important, early recognition and direct ICP monitoring are more effective in preventing deterioration.
B. Evaluate hourly urinary output. Mannitol is an osmotic diuretic that can cause significant diuresis, requiring close monitoring of urine output to prevent dehydration and electrolyte imbalances. However, assessing ICP is the priority because increased ICP can cause brain herniation, which is life-threatening.
C. Monitor arterial blood pressure. Dopamine is a vasopressor used to maintain cerebral perfusion pressure (CPP), which is crucial in head injury management. While blood pressure monitoring is essential, directly assessing ICP ensures that treatment is effective in preventing secondary brain injury.
D. Assess intracranial pressure following intracranial transducer placement. The highest priority is monitoring ICP immediately after placement to detect dangerous elevations that could lead to herniation. The intraventricular catheter provides real-time pressure readings, guiding interventions like mannitol administration and blood pressure control to optimize cerebral perfusion and prevent worsening neurological damage.