"A client was involved in a car accident in which their chest wall hit the steering wheel. The client is reporting chest pain, is having difficulty breathing. Which results should the nurse expect?"

1. "pH 7.25, PaCO2 48mmHg, HCO3 23mEq/L"
2. "pH 7.40, PaCO2 40 mmHg, HCO3 24mEq/L"
3. "pH 7.30, PaCO2 44 mmHg, HCO3 20 mEq/L"
4. "pH 7.58, PaCO2 47 mmHg, HCO3 30mEq/L"