---
title: "When to seek emergency care"
license: CC-BY-4.0
license_url: https://creativecommons.org/licenses/by/4.0/
source: https://medlineplus.gov/ency/article/001927.htm
source_license: "restricted (A.D.A.M. licensed content on MedlinePlus): restated in own words, not copied"
attribution: "Summary by iinventedlight (AI-assisted). Source: MedlinePlus / NLM (A.D.A.M.), \"Recognizing medical emergencies (encyclopedia)\" (restricted (A.D.A.M. licensed content on MedlinePlus): restated in own words, not copied)."
condensed_by: "iinventedlight (Grok Bot, AI-assisted)"
fact_checked: 2026-10-14
date: 2026-10-14
status: reviewed
reviewed_on: 2026-10-14
category: health
checked_on: 2026-10-14
sources:
  - id: S1
    title: "Recognizing medical emergencies (encyclopedia)"
    publisher: MedlinePlus / NLM (A.D.A.M.)
    url: https://medlineplus.gov/ency/article/001927.htm
    accessed: 2026-10-14
    license: "restricted (A.D.A.M. licensed content on MedlinePlus): restated in own words, not copied"
  - id: S2
    title: "Signs and Symptoms of Stroke (2026-05-19)"
    publisher: CDC
    url: https://www.cdc.gov/stroke/signs-symptoms/index.html
    accessed: 2026-10-14
    license: "public domain (US government work)"
  - id: S3
    title: "About Heart Attack Symptoms, Risk, and Recovery (2024-10-24)"
    publisher: CDC
    url: https://www.cdc.gov/heart-disease/about/heart-attack.html
    accessed: 2026-10-14
    license: "public domain (US government work)"
  - id: S4
    title: "Symptoms of COVID-19 (2025-03-10)"
    publisher: CDC
    url: https://www.cdc.gov/covid/signs-symptoms/index.html
    accessed: 2026-10-14
    license: "public domain (US government work)"
  - id: S5
    title: "Dehydration (health topic)"
    publisher: MedlinePlus / NLM
    url: https://medlineplus.gov/dehydration.html
    accessed: 2026-10-14
    license: "public domain (US government work)"
---
# When to seek emergency care

## Summary
Call 911 for anything life-threatening: uncontrolled bleeding, trouble breathing, chest pain or pressure, sudden confusion, fainting, sudden one-sided weakness, trouble speaking or seeing, poisoning, or thoughts of suicide. For stroke or heart attack, call rather than drive, and note when symptoms started.

> **General information, not medical advice. See a clinician about your own situation; in an emergency call 911 (US).**

## Facts
- id: F1
  claim: Adult warning signs (per ACEP, via MedlinePlus) include uncontrolled bleeding, breathing problems, chest pain lasting 2+ minutes, confusion, fainting, choking, coughing or vomiting blood, sudden severe pain, sudden dizziness/weakness/vision change, poisoning, and facial or tongue swelling.
  confidence: medium
  date: 2026-10-14
  sources: [S1]
  license: CC BY 4.0
- id: F2
  claim: Stroke signs are sudden: face/arm/leg numbness or weakness (especially one side), confusion or trouble speaking/understanding, trouble seeing, trouble walking or balance loss, or severe headache with no known cause; call 911 right away.
  confidence: high
  date: 2026-10-14
  sources: [S2, S1]
  license: CC BY 4.0
  note: MedlinePlus list overlaps (sudden dizziness, weakness, vision change, inability to speak); CDC is the fuller source.
- id: F3
  claim: For a suspected stroke, call 911 instead of driving, and note when symptoms began; the best treatments require diagnosis within 3 hours.
  confidence: medium
  date: 2026-10-14
  sources: [S2]
  license: CC BY 4.0
- id: F4
  claim: Stroke symptoms that go away within minutes may be a TIA ("mini-stroke"), which still needs prompt medical attention.
  confidence: medium
  date: 2026-10-14
  sources: [S2]
  license: CC BY 4.0
- id: F5
  claim: Heart attack signs include chest pain or pressure lasting more than a few minutes or coming back, weakness or light-headedness, jaw/neck/back or arm/shoulder pain, and shortness of breath; women more often also have unusual tiredness or nausea. Call 911 immediately.
  confidence: high
  date: 2026-10-14
  sources: [S3, S1]
  license: CC BY 4.0
- id: F6
  claim: COVID-19 emergency signs: trouble breathing, persistent chest pain or pressure, new confusion, inability to wake or stay awake, or pale/gray/blue lips, nail beds, or skin.
  confidence: medium
  date: 2026-10-14
  sources: [S4]
  license: CC BY 4.0
- id: F7
  claim: Call 911 rather than drive when the condition is or could become life-threatening, moving the person could injure them, paramedic skills are needed, or travel would delay care.
  confidence: high
  date: 2026-10-14
  sources: [S1, S2]
  license: CC BY 4.0
  note: CDC states the call-not-drive rule for stroke specifically.
- id: F8
  claim: Dehydration with confusion, fainting, no urination, or rapid heartbeat or breathing needs medical help right away.
  confidence: medium
  date: 2026-10-14
  sources: [S5]
  license: CC BY 4.0
- id: F9
  claim: In the US, someone thinking about harming themselves can call or text 988.
  confidence: medium
  date: 2026-10-14
  sources: [S1]
  license: CC BY 4.0

## Pointers
- answers: Full official guidance beyond this summary
  where: https://medlineplus.gov/ency/article/001927.htm; https://www.cdc.gov/stroke/signs-symptoms/index.html; https://www.cdc.gov/heart-disease/about/heart-attack.html; https://www.cdc.gov/covid/signs-symptoms/index.html; https://medlineplus.gov/dehydration.html
  access: open, no account