Hypercarbia: Difference between revisions
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==Overview== | ==Overview== | ||
Hypercarbia means to have more than normal CO<sub>2</sub> (Carbon dioxide) levels in the blood. | |||
==Pathophysiology== | |||
*Value is usually obtained while performing a basic Chem-7 [[blood test]], which tests for basic [[electrolyte]] levels from a blood sample. | *Value is usually obtained while performing a basic Chem-7 [[blood test]], which tests for basic [[electrolyte]] levels from a blood sample. | ||
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*'''VA = (VT-VD) X breaths/min''' is a formula that can calculate [[ventilation]] in the alveolar (VA). | *'''VA = (VT-VD) X breaths/min''' is a formula that can calculate [[ventilation]] in the alveolar (VA). | ||
==Causes== | |||
*Hypercarbia can be caused by decreased [[tidal volume]] (VT), increased dead space (VD), or decreased breaths per minute. | *Hypercarbia can be caused by decreased [[tidal volume]] (VT), increased dead space (VD), or decreased breaths per minute. | ||
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* [[Hypercapnia]] | * [[Hypercapnia]] | ||
* [[Respiratory system]] | * [[Respiratory system]] | ||
[[Category:Pulmonology]] | [[Category:Pulmonology]] | ||
Latest revision as of 17:37, 25 February 2013
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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]
Overview
Hypercarbia means to have more than normal CO2 (Carbon dioxide) levels in the blood.
Pathophysiology
- Value is usually obtained while performing a basic Chem-7 blood test, which tests for basic electrolyte levels from a blood sample.
- Normal values of CO2 for anyone over 2 years of age is between 22 and 26 mmol/L.
- Increased levels of serum CO2 are found in some disease processes such as COPD and emphysema and is related to the lung's decreased capacity for effective gas exchange.
- Hypercarbia has been used to induce NDE-like experiences in patients, and to treat mental disorders.
- VA = (VT-VD) X breaths/min is a formula that can calculate ventilation in the alveolar (VA).
Causes
- Hypercarbia can be caused by decreased tidal volume (VT), increased dead space (VD), or decreased breaths per minute.