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Respiratory Alkalosis
Aka: Respiratory Alkalosis
- See Also
- Arterial Blood Gas
- ABG Interpretation
- Causes
- Increased Central Respiratory Drive
- Anxiety
- CNS Infection
- Cerebrovascular Accident
- Brain Tumor
- Head Trauma
- Medications
- Salicylates
- Nicotine
- Aminophylline
- Progesterone
- Catecholamines
- Fever
- Sepsis (especially with Gram Negative Bacteria)
- Pregnancy
- Liver failure, Cirrhosis or Hepatic Encephalopathy
- Hyperthyroidism
- Increased Chemoreceptor Stimulation
- Anemia
- Carbon Monoxide Poisoning
- Pulmonary edema
- Pneumonia
- Pulmonary Embolism
- High altitude (decreased FIO2)
- Restrictive lung disease (early)
- Iatrogenic with Mechanical Ventilation
- Labs
- Arterial Blood Gas
- Arterial pH increased
- Serum bicarbonate decreased
- PaCO2 decreased
- Acute Respiratory Alkalosis
- PaCO2 decreases by 10 mmHg increases pH by 0.08
- Bicarbonate decreases 2 meq/L per 10 mmHg PaCO2 fall
- Chronic Respiratory Alkalosis
- PaCO2 decrease by 10 mmHg increases pH by 0.03
- Bicarbonate decreases 4 meq/L per 10 mmHg PaCO2 fall
- References
- Arieff (1993) J Crit Illn 8(2): 224-46
- Narins (1982) Am J Med 72:496
- Narins (1980) Medicine 59:161-95
- Ghosh (2000) Fed Pract p. 23-33
- Rutecki (Dec 1997) Consultant, p. 3067-74
- Rutecki (Jan 1998) Consultant, p. 131-42