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Acid Base Info
Acid Base Causes and S&S
Term | Definition |
---|---|
Metabolic acidosis -Action | inability of kidneys to excrete acid or conserve base |
Metabolic acidosis -Causes | diabetic ketoacidosis (DKA) Overdose aspirin (salicylate) shock sepsis severe diarrhea renal failure |
Metabolic acidosis -SE | headache Low BP hyperkalemia muscle twitching warm, flushed skin (vasodilation) N/V/D altered LOC (confused, drowsiness) Kussmal Respirations -compensatory hyperventilation |
Respiratory acidosis -Action | -retention of CO2 by lungs |
Respiratory acidosis -Causes | Decreased respiratory response - Anesthesia, Med overdose obstructed airway PE COPD Pnumonia Atelectasis |
Respiratory acidosis -SE | Hypoventilation leading to Hypoxia rapid, shallow respirations Decreased BP (vasodilation) Dyspnea Headache Hyperkalemia Dysrhythmias (>K lvls) Altered LOC -drowsiness, dizziness, disorientation Muscle weakness Hyperreflexia |
Metabolic alkalosis -Action | Decreased acid or Increased base |
Metabolic alkalosis -Cause | severe vomiting excessive GI suctioning potassium wasting diuretics -increases loss of H+ excessive antacids (NaHCO3) |
Metabolic alkalosis -SE | restlessness then lethargy dysrhythmias (tachycardia) Compensatory Hypoventilation LOC -confusion, dizzy, irratable N/V/D tremors muscle cramps tingling of fingers toes |
Respiratory alkalosis -Action | increased loss of CO2 from lungs |
Respiratory alkalosis -Cause | hyperventilation anxiety inital stages of PE fear Mechanical ventilation fever hypoxia pregnancy high altitudes |
Respiratory alkalosis -SE | seisures deep, rapid breathing hyperventilation tachycardia low or normal BP hypokalemia numbness & tingling of extremities lethargy & confusion light headedness nausea/vomiting |
Acidosis Labs | Increased H ⁺ ions pH low (<7.4) CO2⁻ elevated (>45) HCO₃⁻ decreased (<21) |
Alkalosis Labs | Decreased H ⁺ ions pH high (>7.4) CO2⁻ decreased (<35) HCO₃⁻ elevated (>28) |