P&A Percussion and Auscultation 叩诊和听诊

P&I pneumonia and influenza 肺炎与流感

P&P prothrombin and proconvertin(test) 凝血酶原和凝血第七因子(试验)

P&S Permanent and Stationary 永久的和静止的

p3 luminous flux 光通量

P5 pregnenolone 孕烯醇酮,孕-5-烯-3β-醇-20-酮

PA Physician's Assistant 助理内科医师,医师助手

PAA Peroxyacetic Acid 过氧乙酸

PAB pharmaceutical affairs bureau 药事局,药事处

paba portable automatic blood analyzer 便携式自动血液分析仪

PAC Premature Atrial Contraction 房性期前收缩

pace personalized aerobics for cardiovascular enhancement 针对增强心血管功能的个人需氧(量)

PACS Picture Archiving and Communication System 图像存储与传输系统

PACT precordial acceleration tracing 心前区加速扫描

pad phenacetin,aspirin and desoxygephedrine mixture 非那西丁,阿司匹林和去氧麻黄碱合剂

PADDS photon-activated drug delivery system 光催化剂运载系统

pae post antibiotics effect 抗生素后效应

PAF Platelet Activating Factor 血小板活化因子,血小板激活因子

PAFD pulmonary artery filling defect 肺动脉充盈缺损

PAG Protein Advisory Group 蛋白质顾问组