PATIENT GUIDE

When to Go to the Emergency Room

A comprehensive guide to recognizing true medical emergencies and making informed decisions about emergency care.

Last updated: April 10, 2026 • 15 min read

Understanding Emergency Care

Emergency departments are designed to treat life-threatening and serious medical conditions that require immediate attention. Knowing when to visit the ER versus other healthcare options can help you get the right care at the right time—and potentially save your life.

Always Go to the ER or Call 911 For:

Cardiac Symptoms

  • • Chest pain or pressure
  • • Pain radiating to arm, jaw, or back
  • • Shortness of breath with chest discomfort
  • • Sudden severe fatigue or weakness
  • • Irregular or rapid heartbeat with dizziness

Stroke Symptoms (FAST)

  • Face drooping on one side
  • Arm weakness or numbness
  • Speech difficulty or slurred speech
  • Time to call 911 immediately
  • • Sudden severe headache

Breathing Problems

  • • Severe difficulty breathing
  • • Choking or inability to speak
  • • Blue lips or face
  • • Severe asthma attack not responding to inhaler
  • • Suspected allergic reaction with throat swelling

Trauma & Injuries

  • • Severe bleeding that won't stop
  • • Head injury with loss of consciousness
  • • Suspected broken bones with deformity
  • • Burns covering large areas or on face/hands
  • • Deep cuts requiring stitches

Other Life-Threatening Emergencies

  • Severe allergic reactions (anaphylaxis) - Difficulty breathing, throat swelling, widespread hives, rapid pulse, dizziness
  • Poisoning or overdose - Suspected ingestion of toxic substances, medication overdose, drug reactions
  • Severe abdominal pain - Especially with fever, vomiting blood, or rigid abdomen
  • Seizures - First-time seizure, seizure lasting more than 5 minutes, or multiple seizures
  • Loss of consciousness - Fainting, unresponsiveness, or altered mental status
  • Severe burns - Third-degree burns, electrical burns, or burns covering large body areas
  • Pregnancy complications - Severe bleeding, severe abdominal pain, or signs of preeclampsia
  • Mental health crisis - Suicidal thoughts, homicidal thoughts, or severe psychiatric emergency

When Urgent Care May Be Appropriate

For non-life-threatening conditions that still need prompt attention, urgent care centers can provide faster, less expensive treatment. Consider urgent care for:

  • Minor cuts and burns
  • Sprains and strains
  • Mild to moderate asthma
  • Ear infections
  • Sore throat or cold symptoms
  • Urinary tract infections
  • Minor allergic reactions
  • Mild fever without other concerning symptoms
  • Vomiting or diarrhea without severe dehydration

When to Call Your Primary Care Doctor

Many conditions can wait for a scheduled appointment with your regular doctor:

  • Chronic condition management
  • Routine vaccinations
  • Prescription refills
  • Mild cold or flu symptoms
  • Minor skin rashes
  • Routine physical exams
  • Follow-up care after ER visit

Special Considerations for Children

Children should go to the ER if they experience:

  • Infants under 3 months with fever over 100.4°F (38°C)
  • Difficulty breathing - Rapid breathing, retractions (skin pulling between ribs), wheezing
  • Severe dehydration - No wet diapers for 8+ hours, no tears when crying, sunken soft spot
  • Seizures - Especially first-time seizures or febrile seizures lasting over 5 minutes
  • Head injuries - Loss of consciousness, persistent vomiting, confusion
  • Severe allergic reactions
  • Ingestion of toxic substances
  • Severe pain that cannot be consoled

What to Bring to the ER

If you're going to the emergency room, bring:

  • Photo ID and insurance card
  • List of current medications (including dosages)
  • List of allergies
  • Medical history summary
  • Contact information for your primary care doctor
  • Phone charger
  • Comfort items (book, snack, water)

Understanding ER Wait Times

Emergency departments use a triage system to prioritize patients based on severity of condition, not order of arrival. This means:

  • Life-threatening emergencies are seen immediately
  • Urgent conditions are seen within 15-30 minutes
  • Less urgent conditions may wait 1-2 hours or longer

If your condition worsens while waiting, inform the triage nurse immediately. Your priority level can be reassessed.

Cost Considerations

Emergency room visits are significantly more expensive than other healthcare options:

  • Average ER visit: $1,500-$3,000 (before insurance)
  • Urgent care visit: $100-$200
  • Primary care visit: $100-$300

However, never let cost prevent you from seeking emergency care for a true medical emergency. Many hospitals offer financial assistance programs and payment plans.

When in Doubt

If you're unsure whether your condition requires emergency care:

  • Call 911 if you think it might be life-threatening
  • Call your doctor's office - Many have 24/7 nurse lines
  • Use telehealth services - Many insurance plans offer virtual consultations
  • Trust your instincts - If something feels seriously wrong, seek care

Common ER Myths Debunked

Myth: "Arriving by ambulance gets you seen faster."
Truth: Triage is based on medical severity, not arrival method. However, paramedics can begin treatment en route and communicate with the ER before arrival.

Myth: "ERs must treat everyone regardless of ability to pay."
Truth: This is true under EMTALA (Emergency Medical Treatment and Labor Act), but you will still receive a bill.

Myth: "Going to the ER at night means shorter waits."
Truth: ERs are often busiest overnight and on weekends when other healthcare options are closed.

After Your ER Visit

Following up after an emergency room visit is crucial:

  • Schedule follow-up appointments as recommended
  • Fill prescriptions promptly
  • Follow discharge instructions carefully
  • Contact your primary care doctor within 24-48 hours
  • Return to the ER if symptoms worsen or new symptoms develop

Quick Reference: ER vs Urgent Care vs Primary Care

Emergency Room (Life-threatening)

Chest pain, stroke, severe bleeding, difficulty breathing, loss of consciousness

Urgent Care (Needs prompt attention)

Minor injuries, sprains, infections, mild fever, minor burns

Primary Care (Can wait for appointment)

Routine care, chronic conditions, preventive care, prescription refills

Medical Disclaimer: This guide is for informational purposes only and does not constitute medical advice. Always consult with qualified healthcare professionals for medical decisions. In a medical emergency, call 911 or go to the nearest emergency room immediately. ER Times and its contributors are not liable for any actions taken based on this information.