The nurse admits a patient diagnosed with pneumonia.Which data findings indicate that the patient is not oxygenating adequately? Select all that apply.

A) Oxygen saturation 87%
B) Arterial blood gas pH 7.33
C) Respiratory rate 52 breaths/min
D) Fine rales in the left lower lobe
E) Cyanosis of the nailbeds and lips

An oxygen saturation of 87% is below the accepted range and indicates inadequate oxygenation.A pH of 7.33 indicates acidosis,but further information is needed to determine whether the cause is respiratory or metabolic.A respiratory acidosis indicates poor gas exchange,but oxygenation may be adequate with inadequate carbon dioxide exchange.A respiratory rate of 52 breaths/min does not allow adequate time for gas exchange and would contribute to a finding of inadequate oxygenation.Fine rales indicates an altered airway,but alone is not adequate for indicating lack of oxygenation.Cyanosis is caused by lack of oxygen to the tissues and is a good indicator of inadequate oxygenation.