| MPO | maximum power output; minimal perceptible odor; myeloperoxidase |
|---|---|
| NERO | noninvasive evaluation of radiation output |
| PAO | peak acid output; peripheral airway obstruction; plasma amine oxidase; polyamine oxidase; pulmonary ... |
| PCO | patient complains of; polycystic ovary; predicted cardiac output |
| PLCO | postoperative low cardiac output |