Prior to an attack, a patient may become pale, their heart rhythm experiences a temporary pause, and collapse may follow. Normal periods of unconsciousness last approximately thirty seconds; if seizures are present, they will consist of twitching after 15–20 seconds. Breathing continues normally throughout the attack, and so on recovery the patient becomes flushed as the heart rapidly pumps the oxygenated blood from the pulmonary beds into a systemic circulation which has become dilated due to hypoxia. As with any syncopal episode that results from a cardiac dysrhythmia, the faints do not depend on the patient's position. If they occur during sleep, the presenting symptom may simply be feeling hot and flushed on waking.
Adams-Stokes syndrome physical examination
Hamman-Rich syndrome physical examination
Boerhaave syndrome physical examination
Noonan syndrome physical examination
Riedel's thyroiditis physical examination
De Quervain's thyroiditis physical examination
Typhus physical examination
Plummer-Vinson syndrome physical examination