A drop in oxygen saturation (SpO2) to 70% after removing the oxygen mask following surgery is concerning and suggests your body is not getting enough oxygen. This could be due to several reasons related to your recent injuries and surgery.

🩺 Possible Causes

• Respiratory complications: Lung issues such as pneumonia, atelectasis (collapsed lung areas), or pulmonary embolism (blood clot in the lungs) can reduce oxygen levels.
• Airway or breathing problems: Swelling, pain, or weakness after head injury or surgery may impair breathing effort.
• Circulatory issues: Blood loss or shock after surgery can reduce oxygen delivery to tissues.

⚠️ When to Seek Immediate Help

• If you experience worsening breathlessness, chest pain, confusion, or bluish lips/fingertips, call emergency services immediately.

🩺 What to Do Next

• Inform your surgeon or anesthesiologist urgently about the low SpO2.
• You may need supplemental oxygen or further tests like chest X-ray or blood gases.
• Close monitoring in a hospital setting is essential to identify and treat the cause.

Please consult your trauma surgeon or critical care specialist promptly to ensure appropriate evaluation and treatment.