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Nur 2392 week 5 and 6 mdc 2 notes docx

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Week 5 and 6 MDC 2 Notes Acid & Base     Acids: release H ions when dissolved in H20 Bases: bind with H ions in solutions Buffers: maintain normal body fluid pH Normal levels o pH: 7.35 to 7.45 (acidic basic) o paCO2: 35-45 (basic acidic) o HCO3: 22-26 (acid basic) o paO2L: 80-100 **If there is less H ion [], the pH rises and becomes more alkaline or basic **More H ion [], the pH drops and becomes acidic     3 systems maintaining pH o Buffers: moves or releases H ions o Respiratory system: hyperventilation or hypoventilation; regulates carbonic acid by elimination or retaining CO2 o Renal system: kidney movement of bicarbonate and long term regulation of acid base in body  May take hours or days for this to have an impact on the body Compensation (body correcting blood pH changes) o Body attempts to correct changes in blood pH to maintain acid-base balance. Respiratory compensation occurs through the lungs by increasing CO2 o pH 7.8 are usually fatal Aerobic metabolism = 2 forms of acid o Respiratory acid (carbonic acid) o Metabolic acids Steps to determine ABG 1. Figure out if pH is acidic or basic 2. Evaluate pCO2 (acid) to see where it falls. a. If paCO2 falls below= respiratory alkalosis b. If paCO2 falls above= respiratory acidosis 3. Evaluate HCO3 to see the direction of the metabolic component 4. ABG Interpretation- Compensation Respiratory Acidosis Deficit HCO3 Caused by hypoventilation Respiratory Alkalosis Excess H ...
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