The nurse is caring for a male client who has been diagnosed with tuberculosis. The client asks when he will be considered noninfectious. The nurse knows that a client will be considered noninfectious when the:
1. PPD is negative.
2. white blood cell count is normal.
3. sputum culture and smear are negative.
4. chest x-ray is clear.
Correct Answer: 3
Rationale 1: The PPD is not a measure of being noninfectious.
Rationale 2: A normal WBC is not a measure of being noninfectious.
Rationale 3: Negative sputum culture and smear are the best indictors of the noninfectious state.
Rationale 4: The chest x-ray is not the primary indicator of the noninfectious state.
Global Rationale: "Noninfectious state" is determined by negative sputum cultures. No other measure is used.
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