Panic Attack or Medical Emergency? What to Do First

Panic attacks can cause chest tightness, a racing heart, shortness of breath, sweating, dizziness, nausea, and a powerful sense that something is wrong. Heart, breathing, medication, and other medical problems can cause some of the same symptoms.

If symptoms are new, severe, different from your usual pattern, or make you think you may be having a medical emergency, call 911. Do not use an article—or a previous anxiety diagnosis—to rule out a medical problem.

If a clinician has already evaluated similar episodes, you have a personal safety plan, and the current episode matches that familiar pattern without new warning signs, the FIRST plan below can help you respond without adding more fear.

The planning tools, sample entries, and scripts below are educational examples, not real patient stories or validated diagnostic tests.

First: when to call 911

Call 911 if you think you may be having a heart attack or another life-threatening emergency, even if you are unsure. Do not drive yourself.

Seek emergency help for symptoms such as:

• New or severe chest pressure, squeezing, heaviness, or pain.
• Pain or discomfort spreading to an arm, shoulder, back, neck, jaw, or upper abdomen.
• Severe trouble breathing, blue or gray lips, fainting, new confusion, or inability to stay awake.
• Sudden weakness or numbness on one side, trouble speaking, or another possible stroke sign.
• A rapid or irregular heartbeat with fainting, severe chest discomfort, or marked weakness.
• Symptoms after an overdose, medication reaction, substance use, or a serious allergic reaction.
• Any symptom your clinician’s emergency plan tells you not to watch at home.

The National Heart, Lung, and Blood Institute advises calling 911 whenever you think you might be having a heart attack, even if you are not sure. EMS can begin assessment and treatment on the way to the hospital. NHLBI heart-attack guidance.

This list is not exhaustive. A familiar feeling can still have a new medical cause.

Panic attack, anxiety, or possible medical emergency?

No comparison chart can diagnose the cause. Use this only to describe what is happening while you decide on the safest next step.

• Sudden surge of intense fear with racing heart, trembling, sweating, dizziness, nausea, or feeling unreal — May fit panic or anxiety: Common in a panic attack, which often rises quickly; Why medical assessment may still be needed: Heart rhythm, breathing, thyroid, medication, and other conditions can overlap
• Worry and tension that build around work, health, relationships, or another stressor — May fit panic or anxiety: Often described as anxiety; “anxiety attack” is not a formal diagnosis; Why medical assessment may still be needed: New or severe physical symptoms still deserve appropriate medical review
• Chest pressure or pain, breathlessness, sweating, nausea, dizziness — May fit panic or anxiety: Can occur during panic; Why medical assessment may still be needed: These are also possible heart-attack symptoms; call 911 when you suspect an emergency
• Symptoms that match previous evaluated episodes and follow the same pattern — May fit panic or anxiety: A personal clinician plan may help guide you; Why medical assessment may still be needed: A change in pattern, intensity, trigger, or recovery should be discussed with a clinician

A panic attack is a sudden period of intense fear or discomfort with physical and cognitive symptoms. Panic disorder involves recurrent unexpected attacks plus ongoing concern or behavior change related to future attacks. One panic attack does not automatically mean panic disorder. NIMH panic-disorder overview.

Use FIRST when the episode matches your clinician-reviewed panic plan

F — Follow the emergency rule first

Ask one question:

“Is anything new, severe, or different enough that I may need emergency help?”

If yes—or if you cannot decide—call 911. Do not spend ten minutes searching symptoms or asking a chatbot to clear you.

I — Interrupt unsafe activity

If you are driving, operating equipment, standing on stairs, or in another unsafe position, pull over or stop safely. Sit somewhere stable if you feel faint.

Tell a nearby person what you need:

“I’m having intense symptoms. Please stay with me while I follow my plan. If I faint, become confused, cannot breathe, or say this feels different, call 911.”

R — Reduce the struggle, not the oxygen

Panic can make people gasp, hold their breath, or try to force a huge breath. If gentle breathing is part of your clinician-approved plan, let the exhale become a little slower than the inhale without straining.

You might say:

“I do not have to make this feeling disappear this second. I am checking safety, staying where I am, and letting the wave change.”

Notice three neutral facts around you: the color of the wall, the feeling of the chair, and a sound in the room. Grounding is a way to orient attention; it is not proof that the symptoms are harmless.

Do not breathe into a paper bag. Do not force prolonged breath-holding. If breathing is severely difficult or different from your usual pattern, seek emergency help.

S — Stick to the prescribed plan

If your clinician gave you an as-needed medication plan, follow the written instructions exactly.

Do not:

• Take an extra dose because the first one did not work immediately.
• Combine it with alcohol, cannabis, opioids, sleep medication, or another sedating drug unless your prescriber specifically said that combination is safe.
• Use someone else’s medication.
• Stop a daily psychiatric medication suddenly based on one episode.

If you are unsure what you took, how much you took, or whether substances could interact, contact Poison Control at 1-800-222-1222 in the United States. Call 911 for severe symptoms or an immediate emergency.

T — Track the episode after safety returns

Once the episode has passed and you are safe, record a few facts. Avoid replaying every sensation repeatedly.

• Date and start time — Example: Tuesday, 2:10 p.m.
• Where you were and what you were doing — Example: Grocery checkout after skipping lunch
• First symptoms — Example: Racing heart, heat, dizziness
• What felt new or familiar — Example: Similar to prior episode; nausea was new
• Medication, caffeine, nicotine, alcohol, cannabis, supplements — Example: Two coffees; usual prescription taken as directed
• Sleep and food — Example: Four hours of sleep; no lunch
• What you did — Example: Sat down, called partner, followed plan
• Duration and recovery — Example: Strongest for about 8 minutes; tired for an hour
• Question for clinician — Example: Does the new nausea change my safety plan?

Bring the note to a medical or mental-health appointment. It helps the clinician assess patterns without relying on memory during a stressful visit.

Make a one-minute panic safety card

Create this with your clinician before the next episode:

My familiar pattern: Record this information in your own words; write “unsure” if needed.
Symptoms that mean call 911: Copy the emergency instructions agreed with your clinician; call 911 for a suspected emergency even if the symptom is not on your list.
Where I can sit or pull over safely: Identify a safe place that keeps you out of traffic.
Person I can contact: Record this information in your own words; write “unsure” if needed.
Medication instructions exactly as prescribed: Copy your current prescriber’s instructions without changing them.
Clinician / after-hours number: Save the office number and its after-hours instructions.
What helps me stay present: List one familiar grounding action.

Store it in your phone and wallet. A safety card reduces decisions during a high-adrenaline moment; it does not replace emergency judgment.

What to do in the next 24 hours

After an episode:

1. Hydrate and eat normally if medically appropriate.
2. Avoid punishing yourself or canceling every future plan.
3. Do not compensate with extra alcohol, sedatives, stimulants, or unprescribed medication.
4. Contact a clinician if the episode was new, changed, recurrent, or disruptive.
5. Ask whether a medical evaluation is needed before assuming panic.
6. Review what you began avoiding—driving, exercise, stores, crowds, or being alone.

Avoidance can shrink daily life and strengthen fear of the next attack. A therapist can help you approach feared sensations and situations gradually and safely rather than forcing yourself through them alone.

What treatment can help recurrent panic attacks?

Cognitive behavioral therapy

CBT is commonly used for panic disorder. Treatment may include learning how panic works, examining catastrophic interpretations, reducing safety behaviors, and practicing carefully planned exposure to feared sensations or situations. Exposure work should be individualized; do not create intense exercises from a blog if medical causes have not been assessed.

NIMH describes psychotherapy, medication, or both as treatment options for panic disorder. NIMH treatment guidance. Learn about therapy at Lyte and Lyte’s panic-disorder care.

Medication

Clinicians may consider an SSRI, SNRI, or another medication based on the diagnosis, health history, other medicines, side effects, pregnancy considerations, substance use, and patient preferences. These medicines generally work as ongoing treatment rather than instant rescue.

Benzodiazepines can reduce panic symptoms quickly, but tolerance, dependence, sedation, and interaction risks matter; NIMH notes that clinicians may prescribe them only briefly. Medication decisions require individualized assessment. Do not start, stop, borrow, or change a dose based on an article. NIMH medication discussion.

Lyte’s medication-management page explains the evaluation and follow-up process.

Questions to bring to an appointment

• Do I need a medical evaluation for these symptoms?
• What specific changes should make me call 911?
• Does this fit panic attacks, panic disorder, another anxiety condition, or something else?
• Could caffeine, nicotine, alcohol, cannabis, supplements, sleep loss, or another medication contribute?
• What should my written plan say about driving and being alone?
• What would CBT for panic involve?
• If medication is considered, what benefit are we targeting, what risks matter for me, and when should we follow up?

Lyte’s first-appointment planner can help organize the history.

When to seek ongoing help

Consider an evaluation when attacks repeat, you worry constantly about another one, or you begin avoiding places, exercise, travel, work, school, or time alone.

Lyte Psychiatry provides in-person care in Pantego and telehealth across Texas. A clinician can help identify when medical evaluation is needed, clarify the diagnosis, and discuss therapy, medication, or coordinated care without assuming every episode is “just anxiety.”

This article provides general education and does not replace an individual medical or mental-health assessment.