Some Important Aspects Involved In Restoring Oxygen Levels A
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During the second wave of COVID-19, an increase in oxygen requirement has been reported in patients. Dr Ravichandra, Chief Medical Officer, National Tuberculosis Institute, Bangalore explains: “80% of COVID-19 cases reported are mild. Only 15% of COVID patients may have a moderate disease where one’s oxygen saturation level may go less than 94%. And the remaining 5% COVID infected people may end up having a severe disease which shows respiratory rate higher than 30/minute and oxygen saturation level less than 90%.”

Let us take a look at some important aspects involved in restoring oxygen levels in the body, for the benefit of the small proportion of patients who end up needing supplemental oxygen.

~ Be alert to the Symptoms of Low Oxygen Level

Warning signs of low oxygen level include difficulty in breathing, confusion, difficulty in waking up and bluish lips or face. Adults may develop chest pain that doesn’t go away. Children may experience flaring up of nostrils, grunting while breathing or inability to drink or eat.

~ Why we should be concerned

According to WHO, Hypoxemia may eventually result in loss of life. When oxygen levels become low because of a sickness such as COVID-19, the cells in the body don’t get enough oxygen to perform their normal functions. If the level remains low for long, maybe due to lack of treatment, organs start to malfunction; in severe cases, it may cause death.

~ What to do when you face low oxygen level

- Proning

Patients undergoing home care are advised to lie prone on their stomachs. This will improve breathing and increase oxygen saturation. Please check out more details in the Union Health Ministry’s “Proning for Self Care” advisory here. According to Clinical Management Protocol for COVID-19 (in Adults), released by the Union Health Ministry on May 24, 2021, awake proning should be encouraged in all patients who require supplemental oxygen therapy.

The advisory by the Ministry of Health and Family Welfare also underlines important considerations while proning in non-intubated patients. Any COVID-19 patient with respiratory embarrassment severe enough to be admitted to the hospital may be considered for rotation and early self proning.

Care must be taken to not disrupt the flow of oxygen during patient rotation. Typical protocols include 30–120 minutes in prone position, followed by 30–120 minutes in left lateral decubitus, right lateral decubitus, and upright sitting position.

- Using oxygen concentrators

Professor and Head of Department, Anaesthesia, B. J. Medical College, Pune, Prof. Sanyogita Naik advises: “Oxygen concentrators can be used only in moderate cases of COVID-19, when the patient experiences a drop in oxygen levels, where the oxygen requirement is a maximum of 5 litres per minute.”

The professor added that oxygen concentrators are also very useful for patients experiencing post-COVID complications which necessitate oxygen therapy. In both the above cases, the goal of oxygen therapy is to achieve a saturation level of 94%; once the patient has a 93% to 94% oxygen level, the oxygen therapy may be discontinued. Excess of oxygen may lead to an increase in the level of Carbon Dioxide, leading to complications.

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