How to Interpret Acid Base Disorders
- pH, pCO2, HCO3 (Bicarbonate)
- pH
- Acidosis
- Alkalosis
- pCO2
- Opposite Direction As pH
- Respiratory Acidosis
- Respiratory Alkalosis
- HCO3 (Bicarbonate)
- Same Direction As pH
- Metabolic Acidosis
- Metabolic Alkalosis
Respiratory Acidosis
- Hypoventilation
- Increased PaCO2 > 45
- Barbiturates Depress Central Respiratory Center of Brain
- Opioids Depress Central Respiratory Center of the Brain
- Airway Obstruction
- Respiratory Muscle Weakness/Paralysis
Respiratory Acidosis Interventions
- Improve Respiration
- Bronchodilators
- Respiratory Stimulants
- Drug Antagonists
- Oxygen
- Assisted Ventilation
- Prevent Complications
Respiratory Alkalosis
- Hyperventilation
- High Altitude
- Aspirin
- Restrictive Lung Disease
- Pulmonary Embolism
- Pregnancy
- Progesterone
- Rib Fracture
- Anxiety
Respiratory Alkalosis Interventions
- Treat Underlying Cause
- Decrease Tidal Volume and/or Respiratory Rate
- Give Adequate Pain Control and Sedation
- Sedatives
- Antidepressants
- Compensatory Drop in Serum Bicarbonate
- Calming Breathing Exercises
- Correct CO2 Slowly
Normal Gap Metabolic Acidosis
- HARD-ASS
- Hyperalimentation
- Addison's Disease
- Renal Tubular Acidosis
- Diarrhea
- Acetazolamide
- Spironolactone
- Saline Infusion
Anion Gap Metabolic Acidosis
- Increased Anion Gap
- MUDPILES
- Methanol
- Uremia
- Diabetic Ketoacidosis (DKA)
- Propylene Glycol
- Isoniazid or Iron
- Lactic Acid
- Ethylene Glycol
- Salicylates
Metabolic Acidosis Interventions
- Raise Plasma pH > 7.20
- Treat Underlying Cause
- Sodium Bicarbonate
- Follow ABGs
- Continuously Monitor Patient
Metabolic Alkalosis
- Diuretic use
- Vomiting
- Antacid
- Hyperaldosteronism
Metabolic Alkalosis Interventions
- Treat Underlying Cause
- Stop Potassium (K+) Wasting Diuretics
- Spironolactone
- Acetazolamide
- IV Fluids
- Sodium Chloride
- Replace Potassium (K+)
- Monitor Respiratory Rate
- Monitor Heart Rate
- Seizure Precautions
Distal Renal Tubular Acidosis (Type I)
- Distal Tube
- Defect in H+ Secretion
- Increased Urinary pH
- Urinary pH >5.5
- Hypokalemia
- Amphotericin B Toxicity
- Autoimmune Disease
- Lithium
- Obstruction Of The Urinary Tract
- Kidney Stones
- Bicarbonate