NURSING EXAM QUESTIONS
FIRST AID
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Less than 85 % Severe hypoxia
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Less than 85 % normal hypoxia
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Level 90 % Severe hypoxia
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Level 92 % Severe hypoxia
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Detailed explanation-1: -This ratio is another way to measure the degree of hypoxia. A normal PaO2/FiO2 ratio is about 300 to 500 mmHg. The ratio of less than 300 indicates abnormal gas exchange, and values less than 200 mmHg indicate severe hypoxemia.
Detailed explanation-2: -If the oxygen saturation drops below 85%, the severe lack of oxygen affects the brain. The person may experience vision changes and lose consciousness. Severe Hypoxemia: When the blood oxygen levels drop below 80%, the brain, liver, and other vital body organs get affected.
Detailed explanation-3: -Oxygen saturation values of 95% to 100% are generally considered normal. Values under 90% could quickly lead to a serious deterioration in status, and values under 70% are life-threatening.