Urgent situations

Sudden confusion (UTI is one possible cause)

Sudden confusion can have many causes—some urgent. This page helps you triage and take the next step safely.

Quick checklist

  • Call 911 if confusion starts suddenly with stroke signs, severe headache, chest pain, or breathing trouble.
  • If they are very sleepy, hard to wake, or unsafe to supervise, treat it as urgent.
  • Check basics: hydration, fever, new meds, low blood sugar (if applicable).
  • Confusion is not automatically a UTI — it’s one possibility among many.

Call now / go now

  • Stroke signs: face droop, arm weakness, speech trouble — call 911.
  • High fever, severe weakness, or rapid decline: urgent evaluation.
  • New confusion after a fall/head hit: urgent evaluation.

Common causes to consider

  • Dehydration, poor sleep, pain, constipation.
  • Medication side effects (especially sedatives, pain meds, anticholinergics) or missed doses.
  • Infections (UTI, pneumonia, skin infections).
  • Low blood sugar (diabetes), low oxygen, electrolyte imbalance.

What to do next

  • If stable, call the primary care office and describe: when it started, what’s different, and any fever/pain/urination changes.
  • Ask whether they recommend same-day evaluation or testing (urine, vitals, labs).
  • If symptoms worsen, don’t wait—seek urgent care or emergency services.