The nurse is caring for a patient with respiratory problems. Which assessment finding indicates a late sign of hypoxia?
Elevated blood pressure
Increased pulse rate
Cyanosis
Restlessness
The Correct Answer is C
A. Elevated blood pressure may occur with various conditions but is not a specific late sign of hypoxia.
B. An increased pulse rate can be an early compensatory response to hypoxia rather than a late sign.
C. Cyanosis, which is a bluish discoloration of the skin and mucous membranes, is a classic late sign of hypoxia, indicating severe oxygen deprivation.
D. Restlessness may indicate early signs of hypoxia or anxiety rather than a late sign and can occur before cyanosis develops.
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Correct Answer is A
Explanation
A. This observation indicates proper body alignment as the arms hanging comfortably at the sides suggest relaxation and good posture.
B. The edge of the seat should not be in contact with the popliteal space; there should be a small gap to prevent pressure and improve circulation.
C. While the feet should be supported on the floor, they should be flat rather than flexed at the ankles for optimal alignment.
D. The body weight should be distributed between the buttocks and thighs, not just on the buttocks, to promote comfort and good posture.
Correct Answer is C
Explanation
A. Atelectasis can occur in anyone, not just those with chronic conditions; this statement is incorrect.
B. While hyperventilation may temporarily open alveoli, it is not a preventative measure for atelectasis.
C. Breathing exercises, such as incentive spirometry or deep breathing, are effective in preventing atelectasis by promoting lung expansion and alveolar ventilation.
D. A chest tube is typically used to remove air or fluid from the pleural space, not for the treatment of atelectasis, which is often managed with respiratory therapies.