Hypercarbia

Overview

 * Definition: to have more than normal CO2 (Carbon dioxide) levels in the blood.


 * 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).


 * Hypercarbia can be caused by decreased tidal volume (VT), increased dead space (VD), or decreased breaths per minute.

Related Chapters

 * Hypercapnia
 * Respiratory system