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Severe Allergic Reaction Anaphylaxis: Medical Emergency When to Call
Summary
Anaphylaxis is a severe and potentially life-threatening allergic reaction that requires immediate medical attention. It can happen quickly, often within minutes of exposure to an allergen. Key symptoms include difficulty breathing, swelling of the face or throat, and a drop in blood pressure. If you suspect anaphylaxis, use an EpiPen if available and call 911 right away. Do not attempt to drive yourself to the hospital; wait for emergency services.
What Is This & Why It Matters
Anaphylaxis is a serious allergic reaction that can occur when someone is exposed to an allergen, such as certain foods, insect stings, or medications. The body's immune system overreacts to the allergen, causing symptoms that can rapidly progress and become dangerous. Recognizing the signs early and taking swift action is crucial because anaphylaxis can affect breathing and blood circulation. Immediate treatment with epinephrine (often through an EpiPen) can be life-saving.
What You Should Do
- Immediately call 911 if you suspect anaphylaxis.
- Use an EpiPen if one is available, injecting it into the outer thigh.
- Lie down flat and raise your legs slightly to help blood flow unless you are vomiting.
- Stay calm and reassure anyone experiencing symptoms as you wait for help.
- Keep track of time: administer a second dose of epinephrine if symptoms persist after 5-15 minutes.
- Inform emergency responders about any known allergies or recent exposures.
- Have a friend or family member accompany you if possible during the emergency response.
- Follow up with a healthcare provider after the emergency for further evaluation and advice.
What You Should NOT Do
- Do not wait to see if symptoms improve on their own before calling for help.
- Avoid driving yourself or someone experiencing anaphylaxis to the hospital.
- Refrain from eating or drinking while waiting for medical assistance.
- Do not stand up suddenly or walk around; this could make symptoms worse.
- Avoid taking antihistamines as a substitute for epinephrine.
- Do not leave someone experiencing symptoms alone; stay with them until help arrives.
- Never assume a mild reaction will not progress; always err on the side of caution.
Symptoms: Normal vs Warning Signs
Normal (Don't Worry)
- Mild itching or redness at the site of allergen exposure.
- Slight tingling sensation after using an EpiPen.
- Mild fatigue following an adrenaline rush from epinephrine.
- Temporary dizziness as blood circulation normalizes.
- Minor swelling that subsides with treatment.
Call Your Doctor If...
- Difficulty breathing or shortness of breath that doesn't improve quickly after epinephrine use.
- Swelling in the throat or tongue that makes swallowing difficult.
- A sudden drop in blood pressure leading to fainting or dizziness.
- Persistent chest tightness despite initial treatment.
- Rapid or weak pulse following epinephrine administration.
- Bluish color around lips or fingertips indicating lack of oxygen.
- Confusion or disorientation after using an EpiPen.
- Severe abdominal pain or vomiting that doesn't stop with initial care.
- Hives covering large areas of the body despite treatment.
FAQ
What should I do if I don't have an EpiPen during an allergic reaction?
Call 911 immediately. Paramedics are equipped with medications necessary to treat anaphylaxis.
How long does it take for symptoms of anaphylaxis to appear?
Symptoms often appear within minutes but can sometimes take up to half an hour after exposure.
Can I use my expired EpiPen in an emergency?
While it's best to use unexpired medication, in a life-threatening situation, using an expired EpiPen is better than not using one at all.
How should I store my EpiPen?
Keep it at room temperature and avoid exposing it to extreme heat or cold.
What steps should I take after experiencing anaphylaxis?
Visit your doctor for follow-up care and discuss any changes needed in your allergy action plan.