CEN Practice Exam (Certified Emergency Nurse)

Answer: C - A pH level of 7.30 would indicate an acid base imbalance. The normal pH is 7.35 and 7.45. Anything less than 7.35 would indicate acidosis, and anything greater than 7.45 would indicate an alkaline state. The normal PCO2 is 35 to 45 mm Hg. Bicarbonate is usually associated with a metabolic state.