🩺 Medical Oxygen (O₂) – Prescription Use
📝 Prescription Information
- Name: Oxygen (Medical Grade)
- Form: Compressed gas or liquid in cylinders or piped supply
- Purity: ≥99.5% pure oxygen (as per pharmacopeia standards)
- Schedule: Prescription-only medicine (POM) in most countries
- Routes of Administration:
- Inhalation (via nasal cannula, face mask, oxygen hood, ventilator)
💊 Uses of Medical Oxygen
Oxygen is used to prevent and treat hypoxemia (low blood oxygen levels) in a wide range of medical conditions:
- Respiratory disorders (e.g., COPD, asthma, pneumonia)
- Cardiac conditions (e.g., myocardial infarction, heart failure)
- Emergency care (trauma, shock, bleeding, poisoning, drowning)
- Surgery & Anesthesia support
- Neonatal and pediatric care (e.g., respiratory distress in infants)
- COVID-19 & ARDS support
- Cluster headache treatment
- Palliative care (for relief of dyspnea)
🌿 Nature of Medical Oxygen
- Chemical Formula: O₂
- Form: Colorless, odorless, tasteless gas
- Molecular Weight: 32.00 g/mol
- Boiling Point: −183°C
- Non-flammable but supports combustion
- Packaging: High-pressure cylinders (usually black body with white shoulder) or cryogenic liquid tanks
- Delivery: Via flow meters, concentrators, ventilators, or central gas pipelines
✅ Advantages of Medical Oxygen
- Life-Saving Therapy
- Essential in treating hypoxia; stabilizes critically ill patients.
- Fast Onset of Action
- Immediate improvement in oxygen saturation when administered properly.
- Supports Cellular Function
- Critical for ATP production and organ function.
- Versatile Use
- Used in hospitals, ambulances, home care, and emergency kits.
- Minimal Side Effects
- Safe when used with proper flow and duration.
- Non-Invasive Delivery
- Simple tools like nasal cannulas and masks make delivery easy.
- Useful in All Ages
- Safe for newborns, children, adults, and elderly patients.
⚠️ Precautions
- Oxygen Toxicity
- Prolonged exposure to high concentrations (especially >60%) may cause lung damage.
- Drying of Airways
- Long-term oxygen can dry nasal passages and mucosa; humidifiers may be needed.
- Fire Hazard
- Highly supports combustion. Keep away from flames, oils, or grease.
- CO₂ Retention in COPD
- In COPD patients, uncontrolled oxygen can suppress the respiratory drive, leading to hypercapnia (high CO₂).
- Cylinder Handling
- Store securely to prevent tipping or damage. Avoid dropping cylinders.
- No Smoking
- Strict “No Smoking” policy in oxygen-enriched areas.
- Proper Monitoring Required
- Use pulse oximetry and ABG to guide oxygen therapy.
📦 Common Medical Packaging
- Cylinders:
- Portable (B-type), medium (C-type), large (D & E-type)
- Concentrators:
- For home use (deliver 90–95% oxygen from ambient air)
- Central Piping:
- In ICU, OT, emergency wards