Arterial blood gas test measures how much gases are in the blood. These gases consist of carbon dioxide and oxygen. To determine how much carbon dioxide and oxygen are in the bloodstream, a nurse would have to draw some blood from the patient in the radial artery.
Blood is sometimes taken from the femoral artery. This is located in the groin. The ranges for pH is 7.34 – 7.44. That would be average. If a person has a pH less than 7.34, the person’s blood is academic. If a person has a pH more than 7.45, then his or her blood is alkalemic.
If a client has arterial blood gas values with a pH of 7.30, and PaO2 of 89 mm, then the client would have respiratory acidosis.
Respiratory acidosis-rationale: this client has a below-normal (acidic) blood ph value and an above-normal partial pressure of arterial carbon dioxide (paco2) value, indicating respiratory acidosis. in respiratory alkalosis, the ph value is above normal and the paco2 value is below normal. in metabolic acidosis, the ph and bicarbonate (hco3) values are below normal. in metabolic alkalosis, the ph and hco3 values are above normal. client needs category: physiological integrity client needs subcategory: reduction of risk potential cognitive level: analysis reference: taylor, c., et al. fundamentals of nursing: the art and science of nursing care, 6th ed. philadelphia: lippincott williams & wilkins, 2008, p. 1685.
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