Posts Tagged Under: Hyperventilation

The Panic Attack

The Panic Attack
The Panic Attack

Topic : The Panic Attack.

The Panic Attack  is a painful experience where the person feels a subjective sense of terror and eminent catastrophe for no evident reason.

The patient have the conviction that he is about to lose consciousness or life.

The attack can last from a few minutes to several hours.
The most common symptoms are:

  1. tachycardia, palpitations, and precordial pain,
  2. fine tremor of hands,
  3. sweating,
  4. “butterflies in the stomach”,
  5. motor weakness,
  6. nausea, and
  7. feeling of unreality.

The person experiences also a sense of air hunger which leads the subject to hyperventilation, and this one produces him a respiratory alkalosis.

(Edited by Dr. María Moya Guirao, MD)

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Did you know that…..

During “Panics Attacks” patients can hyperventilates voluntarily ?

Physiologically, excess pulmonary ventilation produces a complicated chain of events. Over-breathing leads to a reduction of  CO2 tension of the alveolar air and a rise in the O2 tension. As the plasma CO2 content falls, the alkalinity of the blood increases.

The person hyperventilates because he experienced a sense of air hunger during the Panic Attack. When the respiratory alkalosis appears the patient feel muscular stiffness in the extremities, and a feeling of pins and needles around mouth, fingers and toes.


(Edited by María Moya Guirao, M.D.)

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