Has Anyone Experienced High Blood Pressure or Uncontrollable Shaking During Anaphylaxis?


Anaphylaxis is a severe and sometimes fatal allergic reaction. It can happen seconds or minutes after you’ve been exposed to anything you’re allergic to, such as peanuts or bee stings.
Anaphylaxis leads the immune system to unleash a rush of chemicals, which might cause you to go into shock – your blood pressure drops abruptly, and your airways narrow, preventing you from breathing. A quick, weak pulse, a skin rash, and nausea and vomiting are the common signs. Some meals, drugs, insect venom, and latex are common reasons.
Anaphylaxis needs an adrenaline shot. If you don’t have epinephrine, you should go to the emergency room right away. Anaphylaxis can be lethal if not handled promptly.
Some individuals wonder: Has anybody had high blood pressure or uncontrollable shaking during anaphylaxis? Let’s see this in detail.

High Blood Pressure or Uncontrollable Shaking During Anaphylaxis

The most prevalent cardiovascular system finding is hypotension, the prominent symptom of anaphylaxis. Nonetheless, some studies anticipate that hypertension may occur in anaphylactic reactions due to compensatory vasopressor responses. Despite a few reports, no investigation on the prevalence of hypertensive anaphylaxis (HA) has been studied.

Blood pressure returned to normal in patients who had a hypertensive anaphylactic reaction, as did the other symptoms.

Anaphylaxis necessitates an adrenaline shot and a trip to the emergency. If you don’t have epinephrine, you should go to the emergency room right away. Anaphylaxis can be fatal if not handled promptly.

The probability of a hypertensive crisis in anaphylactic reactions in young patients should be considered, and arterial blood pressure should be checked before the epinephrine injection to avoid a potentially deadly side effect of epinephrine.

There is no study present in the literature on the rates of hypertensive anaphylactic responses. We believe this is due to limited evidence of hypertension during an acute anaphylactic reaction, which is also confused by the timely treatment of epinephrine to prevent potentially life-threatening symptoms such as upper airway constriction.

Although a hypertensive crisis may occur in a small number of allergy patients, there should be no reluctance in administering epinephrine during potentially life-threatening signs of anaphylaxis. When necessary, epinephrine injections can be used to treat anaphylaxis and hypertension.

Allergies cannot cause high blood pressure directly, although they can indirectly contribute to inflammation.

Uncontrollable shaking can be the side effect of epinephrine, so shaking can occur during anaphylaxis, but it is due to the treatment used to control it. In addition to shaking, twitchiness, feelings of anxiety, or panic are also some side effects of this treatment.


Anaphylaxis symptoms typically appear within minutes of being exposed to an allergen. However, anaphylaxis can occur up to a half-hour or more after exposure, and Anaphylaxis might be delayed for hours in rare circumstances. Among the signs and symptoms are:

  • Skin, like hives, itching, and flushed or pale skin
  • Blood pressure is low (hypotension)
  • Wheezing and difficulty breathing can be caused by airway constriction and a swollen tongue or throat.
  • A quick and feeble pulse
  • Vomiting, nausea, or diarrhea
  • Fainting or dizziness


One of the most common causes of anaphylaxis is food allergies. Such as:

  • Cow milk
  • Eggs
  • Peanuts
  • Fish and shellfish (shrimp, lobster).
  • Soy
  • Nuts (walnuts, hazelnuts, Brazil nuts, and cashews).
  • Wheat
  • Antibiotics, nonsteroidal anti-inflammatory medicines (NSAIDs)
  • The dye used in CT scans
  • Latex can be found in products such as disposable gloves and adhesive tape.
  • Allergies to venom (allergies to bee or wasp stings).


If you’ve had an allergic reaction to bug bites or food, your doctor will give you an epinephrine (adrenaline) injection, and Adrenaline alleviates the reaction symptoms.

You can carry the injector, which is about the size of a larger marker, with you wherever you go. If you have an anaphylactic reaction, you inject the drug into yourself, usually in your thigh. These shots are effective at reversing symptoms quickly.

If the signs don’t go away after five to 15 minutes, give a second injection if you have one. After injecting, get medical help. You need medical treatment after having an anaphylactic reaction.

Preventive Measures

  • The most effective strategy to avoid anaphylaxis is to avoid chemicals that trigger this severe reaction. Also:
  • Wear a medical alert necklace or bracelet to signal an allergy to certain drugs or chemicals.
  • Always keep an emergency pack with prescription drugs on hand, and your provider will be able to advise you on the contents. Check the expiration date on your epinephrine auto-injector, and make sure you replenish the prescription before it runs out.
  • Ensure all of your healthcare professionals know about any pharmaceutical reactions you’ve had.

You can also consult an Allergy specialist to get expert advice. To get a consultation from the Best Cardiologist in Lahore, you can visit Marham.

Frequently Asked Questions (FAQs)

1- What happens to your body when you go into anaphylactic shock?

Anaphylaxis leads the immune system to unleash a rush of chemicals, which might cause you to go into shock – your blood pressure drops abruptly, and your airways narrow, preventing you from breathing. 

2- What factors contribute to anaphylactic shock?

Anaphylactic shock is an uncommon but severe allergic reaction that can be fatal if not treated promptly. It is most commonly caused by a food allergy, bug bites, or certain drugs.

3- Is it possible for the anaphylactic shock to develop gradually?

Anaphylaxis symptoms might vary. Some patients experience a delayed onset of symptoms, but symptoms emerge quickly and abruptly for the most part. The most serious and potentially fatal symptoms include difficulty breathing and loss of consciousness.

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