What is the normal O2 saturation for a healthy adult?
90-95%
95-100%
86-89%
80-85%
The Correct Answer is B
A. 90-95%: acceptable in some chronic conditions, but not the ideal normal.
B. 95-100%: this is the normal range for oxygen saturation in healthy adults.
C. 86-89%: indicates hypoxemia.
D. 80-85%: severely hypoxic, needs medical attention.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
A. A collection of excess fluid within the intrapleural: This describes a pleural effusion, not orthopnea.
B. Difficulty in breathing that is relieved by sitting upright: This is the definition of orthopnea, commonly seen in conditions like heart failure.
C. A bluish color of the skin induced by hypoxemia: This describes cyanosis, not orthopnea.
D. A lung infection like pneumonia: Pneumonia is a specific infection, not a description of breathing difficulty in certain positions.
Correct Answer is A
Explanation
A. Cyanosis: Cyanosis is a common sign of hypoxia caused by low oxygen levels in the blood.
B. Bradycardia: Hypoxia typically causes tachycardia, not bradycardia.
C. Pallor: Pallor may indicate anemia or poor circulation, not specifically hypoxia.
D. Bradypnea: Hypoxia usually triggers an increased respiratory rate (tachypnea), not bradypnea.
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