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Acid Base. NPN 215. Acid-Base Disturbances. Normal blood pH: 7.35-7.45 Acid-base balance is the homeostasis of the hydrogen ion concentration in the body fluids

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acid base

Acid Base

NPN 215

acid base disturbances
Acid-Base Disturbances
  • Normal blood pH: 7.35-7.45
  • Acid-base balance is the homeostasis of the hydrogen ion concentration in the body fluids
  • Mechanisms that maintain acid-base balance are blood buffers, respiratory control of carbon dioxide (CO2), and renal regulation of bicarbonate (HCO3)
  • If acid-base imbalance exists, there is an imbalance in the functioning of the lungs, kidneys, or both
  • 4 major acid-base imbalances are:
    • Respiratory acidosis
    • Respiratory alkalosis
    • Metabolic acidosis
    • Metabolic alkolosis
normal blood gas values
Normal Blood Gas Values
  • pH – 7.35 - 7.45
  • PCO2 - 35 – 45 mmHg
  • HCO3 – 22 – 26meq/liter
  • PO2 – 90 mmHg
  • O2 Saturation 94-97%
  • BE – base excess