COD N2 acid-base
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| What does the abbreviation pH stand for | Potential Hydrogen
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| The measurement of the concentration of hydrogen ions in a liquid | pH
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| What makes the acid-base of the body balanced | The lungs and kidneys help maintain a normal pH either excreting or retaining acids and bases
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| What is the relationship between hydrogen ions (H+) and pH | The pH reflects the hydrogen ion concentration of the solution: The higher the hydrogen ion concentration, the lower the pH
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| What are the parameters (ranges) for pH of arterial blood | 7.35-7.45
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| At what point does the pH of arterial become acidic | 7.34
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| At what point does the pH of arterial become alkalotic | 7.46
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| The pressure of the carbon dioxide in the blood-stream | PCO2
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| Interpretation of the patient’s acid-base status involves evaluation of three components of the ABG’s | pH, PCO2, & HCO3
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| Normal values of PO2 (the pressure exerted on the arterial wall by the oxygen gas) | 80-100 mm Hg
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| Normal values of PCO2 (pressure of the carbon dioxide in the blood stream) | 35-45 mm Hg
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| Normal values of HCO3 (bicarbonate) | 22-26 mEq/L
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| Normal values of pH (acid measurement) | 7.35-7.45
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| Normal value O2 Sat (oxygen saturation) | 97-100%
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| Who draws ABG's | Respiratory, RN's (depending on Hospital policy)
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| What three control systems regulate acid-base balance | Buffers, Kidneys (Renal),Respiration (Lungs)
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| What is a buffer system | prevent excessive changes in the pH by removing or releasing hydrogen ions
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