Is This an Emergency? ER, Urgent Care, or Wait

Cost figures are routing context, not price quotes. In a true emergency, EMTALA requires a Medicare-participating hospital emergency department to provide a medical screening exam and stabilizing treatment regardless of insurance or ability to pay; the hospital can still bill afterward.

Chest Pain: ER or Wait?

911 / ER now

• Pressure, squeezing, heaviness, or tightness lasting more than a few minutes or coming back.
• Pain/discomfort spreading to arm, shoulder, jaw, neck, back, teeth, or upper belly.
• Shortness of breath, cold sweat, nausea/vomiting, lightheadedness, fainting, or unusual sudden fatigue.
• Chest pain with one-leg swelling, coughing blood, recent surgery/immobility, or pregnancy/postpartum.
• New chest pain in someone with known heart disease, diabetes, kidney disease, cocaine/stimulant use, or age over 40.

Urgent care today

• Sharp pain clearly worse with a twist, cough, or pressing one tender spot, but no shortness of breath or risk factors.
• Burning reflux-like discomfort that is mild and familiar, but today is stronger or not responding as usual.
• Chest wall injury with localized rib pain but normal breathing and no high-energy trauma.

Watch / routine

• Brief twinges lasting seconds in a young healthy person, reproducible by touch, and gone without exertional trigger.
• Known panic symptoms only after the heart-attack features above are absent and a prior clinician has evaluated the pattern.
• Muscle soreness after lifting/exercise that improves over 24-48 hours and has no breathing, fainting, or spreading pain.

Sources: American Heart Association and CDC heart-attack warning signs; Mayo Clinic chest pain first aid.

Base-rate companion: how often scary chest pain is not ACS and how common skipped beats are.

Hit Your Head: ER or Wait?

911 / ER now

• Loss of consciousness, seizure, worsening confusion, unusual behavior, weakness/numbness, or unequal pupils.
• Repeated vomiting, worsening severe headache, skull depression, blood/clear fluid from ear or nose, or bruising around eyes/behind ear.
• Age 65 or older, anticoagulant/blood-thinner use, bleeding disorder, or alcohol/drug intoxication that makes symptoms unreliable.
• Dangerous mechanism: pedestrian struck, ejection from vehicle, fall over 3 feet or 5 stairs in adults; high-impact object or fall over 5 feet in older children.
• Infant under 2 years with scalp swelling except frontal, not acting normally, severe mechanism, or any altered mental status.

Urgent care today

• Concussion symptoms: headache, dizziness, nausea, light sensitivity, fogginess, or memory gap but awake, stable, and no ER features.
• Cut on scalp/face that may need closure, tetanus update, or debris removal.
• Child with isolated brief vomiting or headache after minor injury: call pediatrician/nurse line; observation vs. ER depends on age and full PECARN features.

Watch / routine

• Minor bump, no loss of consciousness, no vomiting, normal behavior, normal walking/talking, and headache improving.
• Small forehead bruise in a child who cries immediately, then plays normally and eats/drinks normally.
• Do not "sleep it off" without a responsible adult checking if any ER feature exists; worsening wakes the decision back up.

Sources: Canadian CT Head Rule; PECARN pediatric head trauma rule. These rules guide clinicians; lay routing should be more conservative when symptoms are unclear.

Abdominal Pain: ER or Urgent Care?

ER now

• Rigid abdomen, rebound pain, fainting, gray/clammy skin, confusion, or blood pressure symptoms.
• Severe pain out of proportion to the exam, sudden tearing pain, or pain with a pulsating abdominal mass.
• Right-lower-quadrant pain that started near the belly button then localized/worsened over hours, especially with fever, vomiting, or pain walking.
• Possible pregnancy plus pelvic/abdominal pain, shoulder pain, dizziness/fainting, or bleeding.
• Testicular pain, severe groin pain, black/bloody stool, vomiting blood, or green/bilious vomiting.

Urgent care today

• Moderate localized pain lasting more than 4-6 hours but no ER features; call ahead because many urgent cares will route CT-dependent pain to ER.
• UTI symptoms with fever, flank/back pain, vomiting, or pregnancy need same-day evaluation.
• Vomiting/diarrhea with dehydration signs but still alert and able to sip fluids may start with urgent care if adult and stable.

Watch / routine

• Mild diffuse cramps with gas, constipation, or viral diarrhea pattern, improving, no fever/red flags, and able to drink.
• Known menstrual cramps matching prior pattern and improving with usual nonprescription measures.
• Do not keep watching pain that localizes, intensifies, prevents walking upright, or wakes someone from sleep repeatedly.

Sources: AAFP acute abdominal pain review; SAEM abdominal pain teaching; emergency red flags emphasize peritonitis, instability, and pain out of proportion.

Base-rate companion: when kid belly pain is often constipation.

Fever by Age: ER, Call, or Wait?

ER now

• Infant 3 months or younger with rectal temperature 100.4°F / 38.0°C or higher: emergency evaluation, even if the baby looks well.
• Any age with fever plus stiff neck, non-blanching purple/red rash, confusion, severe headache, seizure, trouble breathing, blue lips, or hard-to-wake.
• Fever with immune suppression, chemotherapy, transplant medicine, sickle cell disease, central line, or no spleen.
• Heat illness concern: hot environment/exertion plus confusion, collapse, or very high temperature.

Urgent care today

• Baby 3-6 months with 100.4°F / 38.0°C or higher and acting sick, poor feeding, or inconsolable; call pediatrician/nurse line first if immediately available.
• Child 3-12 months with 102.2°F / 39.0°C or higher, fever lasting more than 24 hours, ear pain, urinary pain, or dehydration signs.
• Adult fever over 103-104°F / 39.4-40°C, fever lasting more than 3 days, or fever plus focal symptoms such as flank pain or pneumonia symptoms.

Watch / routine

• Older child or adult with low-to-moderate fever, drinking fluids, normal alertness, normal breathing, and an obvious viral pattern.
• Fever height alone is less important than age, appearance, breathing, hydration, neck stiffness, rash, and mental status.
• Use a review time: if still feverish at 48-72 hours, symptoms localize, or the person looks worse, seek care.

Sources: AAP 2021 febrile infant guideline for 8-60 days with fever >=38.0°C; MedlinePlus fever age cutoffs.

Base-rate companion: why fever height alone is not the severity score.

Does This Cut Need Stitches?

911 / ER now

• Bleeding spurts, soaks through direct pressure, or does not slow after 5-10 minutes of firm pressure.
• Deep wound shows fat, tendon, muscle, bone, or a foreign object; wound crosses chest, abdomen, neck, eye, genitals, or major joint.
• Numbness, tingling, weakness, inability to bend/straighten below the cut, or pale/cold finger/toe beyond the wound.
• Amputation, crushed tissue, high-pressure injection injury, severe animal/human bite, or wound from assault/self-harm.

Urgent care today

• Edges gape open, cut is longer than about 1/2 inch, on the face, across a joint, or likely to scar/function poorly without closure.
• Dirty puncture, gravel/glass/wood debris, rusty/soil contamination, bite, or tetanus shot not current; closure choice may differ for bites.
• Clean noninfected cuts are often closable up to 18 hours after injury; head/face wounds may be closable up to 24 hours, but earlier is simpler.

Watch / routine

• Shallow scrape or small cut with edges together, bleeding stopped, full motion/sensation, and easy cleaning.
• Watch for infection: increasing pain, warmth, swelling, pus, fever, bad smell, or red/purple streaking.
• Do not seal a dirty puncture at home; trapping contamination is the mistake.

Sources: AAFP laceration repair timing; Mayo Clinic puncture wound first aid; Cleveland Clinic and MedlinePlus wound warning signs.

Sprain or Broken Bone?

ER now

• Obvious deformity, bone through skin, loss of pulse, numb/cold/blue limb, crushed injury, or severe uncontrolled pain.
• High-energy trauma, fall from height, major vehicle crash, or multiple injuries.
• Hip/femur injury, open fracture concern, or child who will not use a limb after trauma with severe pain.

Urgent care today

• Ottawa ankle: ankle pain plus bony tenderness at posterior edge/tip of either malleolus, or inability to take 4 steps immediately and now.
• Ottawa foot: midfoot pain plus bony tenderness at navicular or base of 5th metatarsal, or inability to take 4 steps.
• Swelling/bruising rapidly increasing, finger/toe looks rotated, or pain remains severe after rest/ice/elevation.

Watch / routine

• Can take 4 steps, no Ottawa bony tenderness, no deformity/numbness, and pain improves over 24-48 hours.
• Minor jammed finger/toe with full motion, normal alignment, and no point bone tenderness.
• Recheck if swelling/pain worsens after day 2 or function is not improving by a week.

Sources: Ottawa Ankle Rules; MDCalc/EB Medicine summaries of malleolar, navicular, 5th metatarsal, and 4-step criteria.

Back Pain: The Few Red Flags

ER now

• Saddle numbness: numb groin, inner thighs, buttocks, genitals, or cannot feel toilet paper when wiping.
• New bladder/bowel problem: cannot pee, new incontinence, loss of urge/sensation, or bowel control change.
• New or worsening leg weakness, both-leg symptoms, fever with spinal pain, IV drug use, cancer history, or severe trauma.
• Sudden tearing back/chest/abdominal pain, fainting, or neurologic symptoms.

Urgent care today

• Back pain after fall or injury, persistent fever, urinary symptoms, severe flank pain, or pain not controlled enough to walk.
• Sciatica with significant new numbness/weakness but no saddle/bladder/bowel features.
• Older adult, osteoporosis, steroid use, or minor trauma with new focal spine pain.

Watch / routine

• Typical mechanical low back pain after lifting/twisting with no neurologic, bladder, fever, cancer, infection, or trauma flags.
• Pain improves with gentle movement and changes position; early imaging often finds incidental changes that do not explain pain.
• Book routine care if not improving over 2-6 weeks, recurring frequently, or interfering with work/sleep.

Sources: Cleveland Clinic cauda equina syndrome; Oxford University Hospitals cauda equina awareness sheet.

Base-rate companion: how acute low back pain usually behaves.

Headache: Migraine Pattern or ER?

911 / ER now

• Thunderclap: maximal intensity within about 1 minute, or "worst headache of life" with abrupt onset.
• Headache with fever, stiff neck, rash, confusion, seizure, fainting, weakness, numbness, speech trouble, or vision loss.
• New headache after head injury, exertion/sex, pregnancy/postpartum, cancer, immune suppression, or blood thinner use.
• New headache after age 50, especially with scalp tenderness, jaw pain chewing, vision symptoms, or systemic illness.

Urgent care today

• New headache unlike your usual pattern but gradual, stable, and no neurologic or infection flags.
• Sinus/ear/dental symptoms with fever or focal pain that needs same-day exam.
• Known migraine that is lasting longer than usual, causing dehydration from vomiting, or not responding to prescribed plan.

Watch / routine

• Known migraine/tension pattern, gradual onset, normal neurologic function, no fever/stiff neck, and improving.
• Mild headache with viral symptoms, normal alertness, and able to drink.
• Do not label a first thunderclap or neurologic headache as migraine because it resembles pain you have had before.

Sources: American Migraine Foundation; National Headache Foundation thunderclap warning features.

Base-rate companion: why most headaches are primary headaches and kid headache red flags.

Allergic Reaction: Skin-Only or Anaphylaxis?

911 / ER now

• Throat/tongue/lip swelling, hoarse voice, trouble swallowing, wheeze, shortness of breath, chest tightness, or blue/pale color.
• Fainting, confusion, severe dizziness, low blood pressure symptoms, or collapse after exposure.
• Two-system reaction: hives/swelling plus vomiting, cramps, diarrhea, breathing symptoms, or lightheadedness.
• If prescribed epinephrine and anaphylaxis is suspected, use it and call 911; antihistamines do not replace epinephrine.

Urgent care today

• Widespread hives without breathing, throat, GI, or faintness symptoms, especially if first episode or trigger unclear.
• Localized swelling near eyes/lips that is stable but concerning, or reaction recurring despite avoidance.
• Insect sting with large local swelling, increasing pain/redness, or infection concern but no anaphylaxis features.

Watch / routine

• Small itchy rash or hives limited to skin, normal breathing/voice, no dizziness, no vomiting, and improving.
• Known mild contact dermatitis pattern from plants, metals, soaps, or adhesive.
• Do not watch alone after a food, sting, or medication reaction if symptoms are spreading or more than skin is involved.

Sources: AAAAI anaphylaxis guidance; CDC vaccine-site anaphylaxis recognition and EMS transfer guidance.

Vomiting or Diarrhea: Dehydration Check

ER now

• Infant with green/bilious vomiting, bloody stool/vomit, swollen belly, severe pain, or repeated projectile vomiting.
• Severe dehydration: very sleepy/confused, no urine for 8+ hours in a child, sunken soft spot, no tears, dry mouth, rapid heartbeat, or cannot keep sips down.
• Vomiting/diarrhea with stiff neck, severe headache, fever in infant under 3 months, pregnancy, diabetes with high ketones, or immune suppression.
• Black stool, vomiting blood/coffee-ground material, severe abdominal pain, or fainting.

Urgent care today

• Adult or older child with persistent vomiting over 12-24 hours, moderate dehydration, fever, or blood/mucus in diarrhea but stable and alert.
• Traveler's diarrhea with fever/blood, suspected food poisoning in high-risk person, or symptoms after antibiotics.
• Baby under 6 months with gastroenteritis symptoms should get clinician guidance early because dehydration can move fast.

Watch / routine

• Typical stomach bug: mild cramps, vomiting/diarrhea starting within 4-48 hours of exposure, alert, urinating, and able to take small fluids.
• Diarrhea without blood, severe pain, fever red flags, or dehydration, improving over 24-48 hours.
• Use urine output and alertness as anchors; repeated checking of temperature alone misses the real deterioration.

Sources: MedlinePlus viral gastroenteritis/dehydration; Seattle Children's dehydration signs; pediatric gastroenteritis guidance.

Eye Problems: Sight-Threatening or Routine?

ER / same-day eye emergency

• Sudden vision loss, curtain/shadow over vision, new severe eye pain, or eye injury with vision change.
• New surge of floaters, repeated flashes, or peripheral shadow/curtain: possible retinal tear/detachment.
• Chemical splash, penetrating injury, metal grinding injury, contact lens wearer with painful red eye, or unequal pupils after trauma.
• Red eye with severe headache, halos around lights, nausea/vomiting, or hard painful eye.

Urgent care / eye doctor today

• Red eye with moderate pain, light sensitivity, discharge, or vision not quite normal.
• Foreign body sensation after dust/wood/metal exposure, even if you cannot see the object.
• New double vision, new droopy eyelid, or eye symptoms with shingles rash near the eye.

Watch / routine

• Mild itch/watery eyes on both sides with allergy pattern and normal vision.
• Small subconjunctival hemorrhage after coughing/straining, no pain, no vision change, no trauma, and not on blood thinners.
• Do not watch any eye symptom that changes vision; vision is the decision-maker.

Sources: American Academy of Ophthalmology floaters/flashes warning signs; Moran CORE flashes-floaters-curtains red flags.

Base-rate companion: how often acute floaters are not retinal tears.

Kids' Breathing: What Parents Miss

911 / ER now

• Severe trouble breathing: struggling for each breath, can barely speak/cry, stopped breathing, or passed out.
• Blue/gray lips or face when not coughing, limpness, extreme sleepiness, confusion, or not responding normally.
• Retractions: ribs, collarbone, neck, or breastbone pulling in with each breath; grunting or head bobbing in babies.
• Stridor at rest, choking on a possible object, sudden breathing trouble after food/sting/medicine, or infant under 1 year with trouble breathing.

Urgent care today

• New wheezing/noisy breathing, fast breathing above normal for age, mild retractions, or cough preventing sleep/fluids.
• RSV/bronchiolitis pattern with poor feeding, fewer wet diapers, or worsening work of breathing over several days.
• Known asthma with flare not responding to the child's action plan, but no severe distress features.

Watch / routine

• Stuffy nose/cough but normal color, normal alertness, drinking enough, no retractions, and comfortable between coughs.
• Brief noisy breathing that clears after nose suction/cough and child returns to normal play/feeding.
• Take a 30-second video of the breathing pattern before calling; clinicians can often route faster from what they see.

Sources: HealthyChildren/AAP symptom checker; Seattle Children's trouble-breathing signs; CDC RSV infant symptoms.

• Driving yourself with possible heart attack or stroke. You can deteriorate en route, and EMS can start care and activate the receiving team.
• Sleeping off a head injury on blood thinners. Anticoagulants, age over 65, repeated vomiting, or worsening headache move the decision to ER.
• Choosing urgent care for CT-dependent abdominal pain. Right-lower-quadrant appendicitis pattern, pregnancy-related pain, or peritonitis signs often become an ER transfer plus two bills.
• Using the ER for routine refills. Refill gaps are real problems, but primary care, telehealth, pharmacy emergency supply rules, or nurse lines are usually better unless withdrawal or medical instability is present.
• Ignoring combinations. Fever alone may be watchful waiting; fever plus stiff neck, confusion, non-blanching rash, or infant age under 3 months is not.
• Letting cost fear delay true emergencies. EMTALA screening/stabilization rights exist because heart, brain, airway, and bleeding emergencies cannot wait for billing clarity.
• Trusting facility appearance over the sign. "Emergency" or "ER" in the name usually means ER-level billing, even in a strip-mall building.
• Minimizing at triage. "I know you're busy" and "it's probably nothing" can hide the signal. State the red flag plainly, then let the nurse sort it.

Last verified: 2026-07-05. Clinical rules are stable published instruments; billing and venue-cost notes should be rechecked yearly.

• American Heart Association: heart attack warning signs
• CDC: stroke signs and BE FAST
• Poison Control: 1-800-222-1222 and when to call 911
• 988 Lifeline: 988 support and 911 for immediate danger
• CMS: emergency room rights under EMTALA
• AHRQ: Emergency Severity Index overview
• Canadian CT Head Rule publication
• PECARN pediatric head trauma rule
• Ottawa Ankle Rule criteria summary
• AAP 2021 febrile infant guideline
• MedlinePlus: fever age cutoffs
• AAFP: laceration repair timing
• AAAAI: anaphylaxis guidance
• American Academy of Ophthalmology: flashes and floaters
• HealthyChildren/AAP: breathing trouble symptom checker
• KFF/Peterson: ED visit payments in private insurance claims
• FAIR Health Consumer: emergency and urgent care cost lookup