Emergency Central is a collection of disease, drug, and test information including 5-Minute Emergency Medicine Consult, Davis’s Drug, McGraw-Hill Medical’s Diagnosaurus®, Pocket Guide to Diagnostic Tests, and MEDLINE Journals created for emergency medicine professionals. Explore these free sample topics:
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- Hyperventilation syndrome describes a constellation of symptoms:
- Most commonly: Dyspnea, chest pain, lightheadedness, and paresthesias
- Produced by a nonphysiologic increase in minute ventilation:
- Minute ventilation may be increased by increasing respiratory rate or tidal volume (sighs).
- Pathologic or physiologic causes of hyperventilation must be excluded before the diagnosis of hyperventilation syndrome can be assigned.
- 10–15% in the general population
- More common in women (may be related to progesterone)
- Etiology of symptoms is unclear:
- Usually a response to psychological stressors
- Controversy exists regarding underlying disorders that may contribute to hyperventilation: