A nurse is reviewing the ABG values of a client who has pneumonia. Which of the following findings indicates the client is developing respiratory acidosis?
PaO2 85 mmHg
pH 7.47
HCO3 25 mEq/L
PaCO2 55 mmHg
The Correct Answer is D
Choice A reason: PaO2 85 mmHg is within the normal range of 80 to 100 mmHg and does not indicate any hypoxemia or oxygen deficiency.
Choice B reason: pH 7.47 is within the normal range of 7.35 to 7.45 and does not indicate any acid-base imbalance.
Choice C reason: HCO3 25 mEq/L is within the normal range of 22 to 26 mEq/L and does not indicate any metabolic disturbance.
Choice D reason: PaCO2 55 mmHg is above the normal range of 35 to 45 mmHg and indicates respiratory acidosis, which is a condition where the lungs cannot eliminate enough carbon dioxide and the blood becomes too acidic. This can be caused by pneumonia, which can impair gas exchange and ventilation.

Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
Choice A reason: Delaying ambulation until the next day is not an appropriate intervention, as it can cause stiffness, muscle weakness, or joint contractures in the affected knee. The nurse should encourage regular exercise and activity within the client's tolerance level to maintain joint mobility and function.
Choice B reason: Applying moist heat prior to ambulation is an appropriate intervention, as it can reduce pain and inflammation in the affected knee by increasing blood flow and relaxing the muscles and tendons around the joint.
Choice C reason: Using a continuous passive motion machine is not an appropriate intervention for osteoarthritis, as it is mainly used after knee replacement surgery to prevent scar tissue formation and improve range of motion in the new joint.
Choice D reason: Restricting intake of dairy products is not an appropriate intervention for osteoarthritis, as dairy products are good sources of calcium and vitamin D that can support bone health and prevent osteoporosis. The nurse should advise the client to eat a balanced diet that includes fruits, vegetables, whole grains, lean protein, and low-fat dairy products.
Correct Answer is D
Explanation
Choice A: This is incorrect. The client having difficulty reading large print indicates a need for an ophthalmology referral, not an occupational therapy referral. An ophthalmologist can assess and treat vision problems caused by stroke.
Choice B: This is incorrect. The client coughing while drinking from a straw indicates a need for a speech therapy referral, not an occupational therapy referral. A speech therapist can assess and treat swallowing problems caused by stroke.
Choice C: This is incorrect. The client being unable to bear her full weight while walking indicates a need for a physical therapy referral, not an occupational therapy referral. A physical therapist can assess and treat mobility problems caused by stroke.
Choice D: This is correct. The client becoming exhausted after performing activities of daily living indicates a need for an occupational therapy referral. An occupational therapist can assess and treat functional problems caused by stroke, such as fatigue, self-care, cognition, and leisure activities.
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