Arterial Blood Gases
Respiratory Alkalosis -- increased pH -- decreased PaCO2 -- normal HCO3
Respiratory Acidosis -- decreased pH -- increased PaCO2 -- normal HCO3
Metabolic Alkalosis -- increased pH -- normal PaCO2 -- increased HCO3
Metabolic Acidosis -- decreased pH -- normal PaCO2 -- decreased HCO3
ABG Interpretation
Three Steps:
Normal ABG values:
pH: 7.35-7.45
For interpretation if pH normal: 7.4 is the cut off and above would be basic deviation and below would be acidic deviation
Carbon dioxide: 35-45 mm Hg
HCO3 (bicarbonate): 22-26 mEq/L
ROME: Respiratory= Opposite: - pH is high, PCO2 is down (Alkalosis). - pH is low, PCO2 is up (Acidosis). Metabolic= Equal: - pH is high, HCO3 is high (Alkalosis). - pH is low, HCO3 is low (Acidosis).
So you match up what the alteration is with the pH and that is the cause (say the pH is 7.36 (acidic end of normal) and CO2 is 50 (high, acidic) so that’s respiratory acidosis and if the HCO3 is 28 (high, basic) it is compensating so the blood gas is a fully compensated respiratory acidosis. If pH was not normal, its only partially compensated and if the HCO3 was normal it is uncompensated.
The chart below is what I use:
I hope this helps.
In whole blood samples, blood gas analyzers and electrolyte analyzers are used to measure parameters such as pH, blood gas, electrolytes…
Analysis of blood gas and electrolyte analyzers, 2025
Analysis of blood gas and electrolyte analyzers, 2025
Several parameters, including pH, electrolytes, blood gas (pCO2 and pO2), and metabolites, are extracted from whole blood samples using blood gas and electrolyte analyzers. The pH of blood and plasma or serum indicates the health of the renal (kidney), blood, and respiratory systems. Where the arterial blood pCO2 measurement is used to obtain access to efficient carbon dioxide elimination from…
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The global Blood Gas and Electrolyte Analyzers Market is estimated to reach USD 653.5 million by 2022. An increase in demand
An increase in demand for blood gas testing, growing incidence among the patients in emergency departments and critical care, increasing healthcare expenditure, increase in the change of focus towards point-of-care testing and introduction of new expertise are some of the most affecting drivers of this market.
Increase in the base population will also contribute towards the growth of the market in the coming years by resulting in high occurrence rates of diseases which include cancer, respiratory disorders, diabetes, and heart-related diseases. Furthermore, the appearance of multi-parameter monitoring device which helps in increasing test menus and rise in requirement for miniaturized devices which is expected to improve market growth over the coming period. For example, according to the WHO, the global geriatric population of 65 years and above will help to rise from 7% in 2000 to 16% in 2050. For cancer and other chronic diseases, aging is one of the risk factors and therefore, the global aging population will help to increase its market growth.
Blood-Gas Abnormalities
Do not use the force!!!!!
Blood Gas And Electrolyte Analyzers Market Analysis By Product (Benchtop, Portable), By Application (Blood Gas Analyzers, Electrolyte Analyzers, Combined Analyzers), By End-use (Clinical Laboratories, Point-of-Care) And Segment Forecasts To 2022 - Hexareports.com
Global blood gas and electrolyte market is expected to reach USD 653.5 million by 2022. Rising number of patients in ICU and critical care units and increasing demand for high throughput and integrated systems are some key factors likely to drive the blood gas and electrolyte analyzers market. Growing global geriatric population base is also expected to significantly contribute towards market growth over the forecast period, by triggering the incidence rates of target diseases and widening the base of patients requiring critical care.
