|
Condition |
Rationale |
|
Claustrophobia |
Anxiety in small spaces |
|
Pneumothorax |
Gas emboli, pneymomediastinum
Pneumoperitoneum
Tension (pneumothorax)
Subcutaneous emphysema
History of spontaneous pnuemothorax |
|
Chronic obstructive pulmonary disease / Upper Respiratory Infection |
Increased risk of pulmonary barotrauma |
|
Pneumocystic carinii pneumonia |
Questionable fetal teratogen |
|
Seizure disorders |
Barotrauma to sinus/ear/lung |
|
Pregnancy |
Unknown side effects on unborn baby |
|
Upper respiratory infection |
Increased hemolysis |
|
Hyperthermia |
Decreased threshold for oxygen-induced seizures |
|
Hereditary spherocytosis |
Congenital red cell membrane defect |
|
Optic neuritis |
Questionable - Increased optic nerve pathology |
|
Malignant tumours |
Questionable - Increased vascularity for tumours |
|
Acidosis |
Decreased threshold for oxygen seizures |
Drugs
- cis-platinm
- Doxorubicin
- Bleomycin
- Steroids
- Alcohol
- Aromatic hydrocarbons
- Disulfiram
- Nicotine
|
- Decreased would healing
- Increased free oxygen radicals
- Pulmonary fibrosis leading to pneumothorax
- Decreased threshold for oxygen seizure
- Dehydration (increased risk of DCS)
- Spontaneous combustion
- Inhibits superoxide dismutase
- Decreased seizure threshold
|