Which situation best illustrates tissue hypoxia rather than hypoxemia alone?
Correct answer: B. Normal arterial oxygen with severe circulatory shock
- A. A low arterial oxygen level in a patient with pneumonia
- B. Normal arterial oxygen with severe circulatory shock
- C. A low oxygen saturation caused by airway obstruction
- D. Reduced arterial oxygen after a large pulmonary embolus
Explanation
Hypoxia means inadequate oxygen at the tissue level and can occur when tissue perfusion or oxygen use is impaired, even if arterial oxygen is normal. Hypoxemia specifically means reduced oxygen in arterial blood, as occurs in pneumonia or pulmonary embolism.
Report an error
The more specific you are, the faster it gets fixed. A source beats an opinion.
Prefer email? support@testustad.com
About Respiratory Nursing
Covers nursing assessment and management of asthma, chronic obstructive pulmonary disease, pneumonia, tuberculosis, pleural disorders and respiratory failure. Key areas include breath sounds, oxygen therapy, airway suctioning, inhaled medicines, arterial blood gases and the difference between hypoxia, hypoxemia and carbon dioxide retention.
Practise Respiratory Nursing
50 free Respiratory Nursing MCQs from Medical Surgical Nursing, each with the correct answer and an explanation. Unlimited attempts, no account needed.
Discussion
Stuck on an option, or know a faster way to get there? Ask or explain it here.
No comments yet. Be the first to explain this one.
Exams that ask Medical Surgical Nursing questions like this
Medical Surgical Nursing is on 8 papers prepared for on TestUstad, and all of them draw the same bank, so this question is worth knowing for every one of them.
More Respiratory Nursing questions
A patient develops severe dyspnea, chest pain and a falling oxygen saturation immediately after thoracentesis. Which action should the nurse take first?
A patient receiving oxygen asks why smoking is prohibited near the bed. Which explanation by the nurse is correct?
A patient taking isoniazid for pulmonary tuberculosis reports tingling and numbness in the hands and feet. Which action is most appropriate?
A patient with asthma uses a peak-flow meter and obtains a reading below 50% of the personal best value. What does this result indicate?
A patient with pneumonia has fine crackles at both lung bases. What do these sounds most likely indicate?
A patient with severe dyspnea is conscious, has a patent airway and is using accessory muscles. Which position should the nurse use first to improve ventilation?