In a patient with frequent non‑orthostatic falls, taking apixaban (Eliquis) and presenting with severe hyperglycemia (~700 mg/dL) despite diet‑controlled diabetes, could this be a stroke?

Acute Stroke Must Be Ruled Out Immediately in This Patient

This clinical presentation—frequent falls, severe hyperglycemia (700 mg/dL), and anticoagulation with apixaban—requires urgent stroke evaluation because hyperglycemia is common in acute ischemic stroke and can worsen outcomes, while the falls may represent neurological deficits rather than orthostatic causes.

Why Stroke is a Critical Consideration

Hyperglycemia as Both Marker and Consequence of Stroke

Hyperglycemia occurs in >40% of acute ischemic stroke patients, particularly those with diabetes 1. The severe hyperglycemia (700 mg/dL) in a previously diet-controlled diabetic represents a dramatic metabolic decompensation that could indicate:

• Stress response from acute stroke: Blood glucose elevations during acute stroke relate partly to stress reactions with impaired glucose metabolism 1
• Worse stroke outcomes: Multiple observational studies consistently show that admission hyperglycemia associates with worse clinical outcomes, increased infarct volumes on MRI, and higher rates of symptomatic intracranial hemorrhage in patients receiving thrombolysis 1

The Anticoagulation Context

The patient is on apixaban (Eliquis), which reduces stroke risk in atrial fibrillation but also increases bleeding risk 2. This creates a dual concern:

• If stroke has occurred, the anticoagulation may complicate management
• The falls could represent either ischemic stroke symptoms or hemorrhagic complications from anticoagulation

Critical Diagnostic Steps

Immediate Actions Required

1. Obtain blood glucose immediately to confirm the hyperglycemia level 1

2. Perform urgent neurological examination looking for:

   • Focal weakness or sensory deficits
   • Speech abnormalities (dysarthria, aphasia)
   • Visual field defects
   • Gait abnormalities beyond simple imbalance
   • Altered mental status

3. Emergency brain imaging (CT or MRI) to:

   • Rule out hemorrhagic stroke (critical given anticoagulation)
   • Identify acute ischemic changes
   • Assess for other structural causes of falls

The Hypoglycemia Mimic Caveat

While the evidence discusses hypoglycemia as a stroke mimic 1, 3, this patient has severe hyperglycemia, not hypoglycemia. However, one recent case report 3 describes stroke-like symptoms from relative hypoglycemia in poorly controlled diabetics even at glucose levels above conventional thresholds. In this patient with glucose of 700 mg/dL, relative hypoglycemia is not the concern—the severe hyperglycemia itself suggests either acute stroke or another serious acute illness.

Management Algorithm

If Stroke is Confirmed or Suspected

1. Manage hyperglycemia cautiously: Target blood glucose 140-180 mg/dL per American Diabetes Association recommendations 1. Avoid aggressive correction that risks hypoglycemia, which requires ICU-level monitoring.

2. Continue apixaban unless contraindicated: The drug label and clinical trials 2 show apixaban reduces stroke risk in atrial fibrillation. However, if hemorrhagic stroke is identified, anticoagulation must be reversed immediately.

3. Cardiac monitoring for ≥24 hours to screen for atrial fibrillation or other arrhythmias that could be the stroke mechanism 1

If Stroke is Ruled Out

Investigate alternative causes of falls:

• Diabetic neuropathy (though this wouldn't explain acute decompensation)
• Hyperosmolar hyperglycemic state causing altered mental status
• Medication effects
• Cardiac arrhythmias causing syncope (check for atrial fibrillation)

Key Clinical Pitfalls

Do not dismiss the falls as simply "non-orthostatic" without neurological evaluation. Falls in elderly patients on anticoagulation with acute metabolic derangement warrant stroke evaluation until proven otherwise.

Do not aggressively correct the hyperglycemia before ruling out stroke. While hyperglycemia worsens stroke outcomes 1, overly aggressive insulin therapy risks hypoglycemia and requires intensive monitoring 1. Target 140-180 mg/dL using subcutaneous insulin protocols that avoid excessive resource use.

Recent evidence shows hypoglycemic events can trigger stroke within 30 days in diabetic patients 4, but this patient has severe hyperglycemia, making acute stroke or hyperosmolar state more likely explanations.

The Bottom Line

The combination of frequent falls, severe hyperglycemia in a previously well-controlled diabetic, and anticoagulation therapy creates high suspicion for acute stroke. Hyperglycemia is present in >40% of acute strokes and predicts worse outcomes 1. Urgent stroke protocol evaluation with brain imaging and neurological assessment is mandatory before attributing symptoms to metabolic causes alone.