Apnea testing is not suitable in patients who are hemodynamically unstable with increasing vasopressor needs, metabolic acidosis, or require high levels of ventilatory support. Apnea testing carries the risk of arrhythmias, worsening hemodynamic instability, or metabolic acidosis beyond the level of recovery and can potentially make the patient unsuitable for organ donation (see above). In this situation a confirmatory test is warranted as it is unsafe to perform the apnea test to the patient. Etymology and pronunciation
The word apnea (or apnoea) uses combining forms of a- + -pnea, from Greek Greek: ἄπνοια, from ἀ-, privative, πνέειν, to breathe. See pronunciation information at dyspnea. See also
Apnea and Work
Apnea-hypopnea index

References
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Nunn, J. F. (1993). Applied Respiratory Physiology (4th ed.). Butterworth-Heinemann. ISBN 0-7506-1336-X. External links

Sleep Apnea, a resource from the Harvard Division of Sleep Medicine on Obstructive Sleep Apnea
apneacalculator.com, information about Apnea and the apnea-calculator for clinical treatment of Obstructive Sleep Apnea
Freediving Courses & Training in the UK, information about learning the sport of Freediving, the club is called Apneists UK
DiveWise.Org Non-profit scientific and educational resource for apnea divers
DAN Breath-Hold Workshop Divers Alert Network 2006 Breath-Hold Diving Workshop PDF
Secnidazole (trade names Flagentyl, Sindose, Secnil, Solosec) is a nitroimidazole anti-infective. Effectiveness in the treatment of dientamoebiasis has been reported. It has also been tested against Atopobium vaginae.In the United States, secnidazole is approved for the treatment of bacterial vaginosis and trichomoniasis in adult women. References


== Further reading ==