If someone may be having a heart attack or stroke, or is struggling to breathe, call 911 now. Do not drive yourself and do not wait to finish reading. Paramedics start treatment the moment they reach you and can alert the receiving hospital before you arrive — minutes you cannot get back any other way.
Most people do not go to the emergency room too often. They go too late.
They wait to see if the chest tightness passes. They decide the headache is probably dehydration. They tell themselves they will call the doctor in the morning. Sometimes that is the right call and they saved themselves a long night. Sometimes those hours cost them something they cannot get back.
This guide is meant to make that decision easier at the moment you actually have to make it — not in hindsight.
The short version
Three questions, in order:
- Could this kill or permanently disable someone in the next few hours? Call 911.
- Does this need a physician, imaging, or lab work today? Go to an emergency room.
- Is this uncomfortable but stable, and could wait for an appointment? Urgent care or your primary care clinic.
If you get stuck between two of those, choose the higher level of care. An unnecessary ER visit is an inconvenience. A missed emergency is not a thing you can undo.
Call 911 — do not drive
Some situations are worse if you get there by car, because treatment needs to start before you arrive.
Call 911 for:
- Chest pain or pressure, especially with shortness of breath, sweating, nausea, or pain spreading to the arm, jaw, neck, or back
- Signs of stroke. Sudden numbness or weakness in the face, arm or leg — especially on one side — sudden confusion or trouble speaking, sudden trouble seeing, sudden trouble walking or loss of balance, or a sudden severe headache with no known cause. Note the time the symptoms first appeared, because treatment options depend on it
- Serious trouble breathing, or the inability to speak in full sentences
- Unconsciousness, a seizure that will not stop, or someone who cannot be woken
- Heavy bleeding that will not stop with firm pressure
- A severe allergic reaction — swelling of the face, lips, tongue, or throat
- Major trauma — a serious fall, a car crash, a suspected broken neck or back
- Thoughts of suicide or self-harm. In the US you can also call or text 988 for the Suicide and Crisis Lifeline
Two things worth knowing. A heart attack does not always announce itself with chest pain. The CDC lists jaw, neck or back pain, pain in one or both arms or shoulders, shortness of breath, and feeling weak or light-headed among the symptoms, and notes that women are more likely than men to have unusual tiredness, nausea or vomiting — and that some women have no symptoms at all. And with stroke, treatment is measured against the clock from when symptoms started, which is why that detail matters more than almost anything else you can tell the paramedics.
Go to the emergency room
An emergency room is the right place when something needs a physician, imaging, or lab work today, but an ambulance is not warranted.
Go to the ER for:
- Abdominal pain that is severe, worsening, or concentrated in one spot
- A cut deep enough to need stitches, or one you cannot get clean
- A possible broken bone, or a joint that looks out of place
- A head injury, particularly with vomiting, confusion, or any loss of consciousness
- A high fever with stiff neck, severe headache, confusion, or a rash
- Persistent vomiting or diarrhea, or signs of real dehydration
- Burns that blister, or any burn covering a large area
- Pain or bleeding during pregnancy
- Symptoms you cannot explain that are getting worse rather than better
For most of these, the deciding factor is not how much it hurts — it is whether someone needs to look inside you to answer the question. That is what an emergency room is built for: a physician, a CT scanner, an X-ray, and a lab, in one place, at three in the morning.
A note on children
Children compensate well and then decline quickly, so the threshold is lower. The American Academy of Pediatrics puts one of those thresholds in numbers: a baby younger than three months with a temperature of 100.4°F or higher needs to be seen — a fever that mild would not worry anyone about an older child. Beyond that, take a child to emergency care for trouble breathing, unusual drowsiness or difficulty waking, or signs of dehydration such as no wet diapers and no tears.
Rashes deserve a word of their own, because the popular advice has the order backwards. The CDC says meningococcal disease “can first appear as a flu-like illness and rapidly worsen”, and that a dark purple rash appears in the later stages. The rash is confirmation, not the early warning — so the thing to act on is a child who seemed to have flu this morning and is clearly worse this afternoon. In a baby, the CDC lists sluggishness, irritability, poor feeding and a bulging soft spot on the head.
Trust the change you are seeing in your own child over any list, including this one.
And one that is specific to living here
Heat illness is an Arizona emergency, and the line between the manageable end and the dangerous end is a handful of specific signs — confusion being the one that matters most. It has its own guide: Arizona heat illness, and the point where it becomes an emergency.
Urgent care or your primary care clinic is enough
Plenty of things that feel urgent are not emergencies, and an ER is a slow, expensive way to treat them.
Urgent or primary care handles:
- Colds, flu, sore throats, sinus infections, ear infections
- Minor cuts, scrapes, sprains, and strains
- Rashes without fever
- Suspected urinary tract infections
- Pink eye and other minor eye irritation
- Routine physicals, vaccinations, and prescription refills
- Ongoing management of diabetes, blood pressure, and other chronic conditions
Using the right level of care here does more than save you money — it keeps emergency capacity free for the person who arrives behind you with chest pain.
Where to go in the Valley
IHCS facilities across Arizona, so you can decide before you need to:
Open 24/7, every day — emergency care
- Fountain Hills Emergency Room — 9700 N Saguaro Blvd, Fountain Hills, AZ 85268 · (602) 671-7990
- El Mirage Emergency Room — 12000 N El Mirage Rd, El Mirage, AZ 85335 · (480) 237-4922
Mon–Thu 8:00 AM – 6:00 PM · Fri 8:00 AM – 12:00 PM · closed Sat & Sun — primary and urgent care
- Fountain Hills Medical Center — 9700 N Saguaro Blvd, Suite 100, Fountain Hills, AZ 85268 · (602) 671-7981
- Mercy Grace Pediatrics & Primary Care — 1720 E Boston St, Gilbert, AZ 85295 · (480) 745-3702
Both emergency rooms are staffed by emergency physicians around the clock and have CT and X-ray on site, so imaging and results happen in the same visit instead of becoming a second appointment somewhere else.
Questions people actually ask
Will I be seen faster at a freestanding ER than at a hospital? Often, yes — freestanding emergency rooms are not absorbing a whole hospital’s admissions at once. But every emergency room treats the sickest patient first, wherever they are, so nobody can promise you a wait time. If your condition may need immediate surgery or intensive care, a hospital ER is the better destination. We cover that trade-off in detail in freestanding ER vs hospital ER.
Is a freestanding ER a real emergency room? Yes. It is an emergency department with emergency physicians, nurses, imaging, and a lab — it simply is not attached to a hospital campus. If you need to be admitted, the team arranges the transfer.
What if I am not sure it is an emergency? Come in, or call us. Being evaluated and sent home reassured is a good outcome. Deciding at 2 AM that you will wait until morning is how treatable problems become complicated ones.
What about cost? Emergency care costs more than a clinic visit, and that is a real consideration — which is exactly why the sections above are worth reading before you need them. But cost should never be the reason you talk yourself out of care for chest pain, stroke symptoms, or trouble breathing. Get seen, then sort out the billing; our team will work through coverage and payment options with you.
Do I need an appointment? No. Both emergency rooms are open 24 hours a day, every day, including holidays. Walk in.
When in doubt
Nobody regrets going to the emergency room and being told they are fine. The regret runs the other way.
If something feels seriously wrong, get it looked at. Our emergency rooms in Fountain Hills and El Mirage are open right now, and our clinics in Fountain Hills and Gilbert are here for everything that can wait for business hours.
Find your nearest 24/7 IHCS emergency room →
Sources
Every link below was opened and read on 13 September 2026. Where a source did not support something this article had said, the statement was cut rather than softened.
- Stroke: the sudden signs, and why the time of onset matters. Stroke Signs and Symptoms, Centers for Disease Control and Prevention.
- Heart attack: the symptoms that are not chest pain. Heart Attack Symptoms, Risk, and Recovery and Women and Heart Disease, Centers for Disease Control and Prevention.
- Meningococcal disease: the flu-like onset, and when the rash actually appears. Meningococcal Disease Symptoms, Centers for Disease Control and Prevention.
- Fever in a baby under three months. When to Call the Pediatrician: Fever, American Academy of Pediatrics.
Hours, addresses and phone numbers come from IHCS’s own records. The guidance about which level of care suits which problem describes how our own emergency rooms and clinics are staffed and equipped; it is not drawn from the sources above.
This article is general health information, not medical advice, and it cannot account for your specific situation. It does not replace evaluation by a clinician. If you think you are having a medical emergency, call 911.