Heatstroke

Overview

Heatstroke can come from hot weather or hard exercise.

Cooling first, then transport, saves lives.

Symptoms

Common signs:

• Confusion
• Very hot skin
• Passing out
• Feeling sick after being in the heat

Less common

• Fast heartbeat

When to get medical care

Causes

Heat.

Does it spread or run in families?

• It isn't contagious. You can't catch it from someone else.

Who is more likely to get it

• Older adults
• Athletes

Possible complications

• Sudden kidney problem (acute kidney injury): From muscle breakdown
• Brain injury: Can be lasting

Diagnosis

This is diagnosed in the emergency room or hospital.

The exam

A physical exam.

Tests

Tests, if needed:

• Temperature:

Treatment

Emergency care is needed. While waiting for help:

Self-care

• Call 911
• Move to shade
• Cool with cold water

Which doctor treats this

• Emergency doctors treat it first, in the ER.

Living with it

Support groups and helplines

• American Stroke Association: Recovery tips and support groups for survivors and families.

Back to school, work, or sports

• Recovery time varies. Ask your care team when you can drive, lift, work, and exercise.

Children, pregnancy, and older adults

• Older adults and people without AC: Highest risk.

Pregnancy and breastfeeding

• If you're pregnant or planning to be, tell your prenatal provider about this condition.
• Don't start or stop any medicine on your own. Some are safe in pregnancy and some need to be changed.
• Ask before taking any pain reliever. The FDA advises avoiding ibuprofen and naproxen after 20 weeks unless your doctor says to.
• Breastfeeding: Most medicines are fine, but ask. The NIH LactMed database lists what's known about each one.

For caregivers

• Go to visits when you can and take notes.
• Keep a list of medicines, allergies, and doctors in one place.
• Learn the warning signs that need fast care.
• Learn CPR. Many hospitals and the Red Cross offer classes.
• Take breaks and ask for help. Caregivers need care too.

Outlook

Fast cooling saves lives.

Getting ready for your visit

Bring a list of your symptoms and medicines.

What to bring

• A list of your medicines and supplements
• Notes on when symptoms started and what makes them better or worse

Questions to ask

• What follow-up care do I need?
• How can I prevent this from happening again?

Research studies

Research studies test new ways to find and treat health problems. Some are looking for volunteers. Talk with your doctor before joining one.

Search ClinicalTrials.gov for studies on Heatstroke