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Nursing Knowledge
Arterial blood gases (ABGs) are a set of measurements obtained from an arterial blood sample, often taken from the radial artery in the wrist, but sometimes from the femoral or brachial artery. This test is typically ordered for clients who are critically ill or have a respiratory disease.
ABGs provide important information about the following:
ABG interpretation is the process of analyzing arterial blood gas values to diagnose respiratory and metabolic acid-base imbalances.
The normal ABG values are:
You can use the pH scale to match opposing systems (respiratory vs metabolic) and diagnose the system at fault based on whether the pH, CO2, or HCO3 levels are in or out of their normal ranges.
Kussmaul breathing is a deep, rapid breathing pattern that occurs in response to extreme acidosis by blowing off CO2.
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