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COD N2 acid-base
| Question | Answer |
|---|---|
| What does the abbreviation pH stand for | Potential Hydrogen |
| The measurement of the concentration of hydrogen ions in a liquid | pH |
| 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 |
| 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 |
| What are the parameters (ranges) for pH of arterial blood | 7.35-7.45 |
| At what point does the pH of arterial become acidic | 7.34 |
| At what point does the pH of arterial become alkalotic | 7.46 |
| The pressure of the carbon dioxide in the blood-stream | PCO2 |
| Interpretation of the patient’s acid-base status involves evaluation of three components of the ABG’s | pH, PCO2, & HCO3 |
| Normal values of PO2 (the pressure exerted on the arterial wall by the oxygen gas) | 80-100 mm Hg |
| Normal values of PCO2 (pressure of the carbon dioxide in the blood stream) | 35-45 mm Hg |
| Normal values of HCO3 (bicarbonate) | 22-26 mEq/L |
| Normal values of pH (acid measurement) | 7.35-7.45 |
| Normal value O2 Sat (oxygen saturation) | 97-100% |
| Who draws ABG's | Respiratory, RN's (depending on Hospital policy) |
| What three control systems regulate acid-base balance | Buffers, Kidneys (Renal),Respiration (Lungs) |
| What is a buffer system | prevent excessive changes in the pH by removing or releasing hydrogen ions |
Created by:
jaymee4647
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