病理生理诊断用英语可以称作 "pathophysiological diagnosis"。

来源：

"Pathophysiology" 指的是疾病或损伤对生理机能造成的影响。"Patho-" 来自希腊语 "pathos"，意思是 "disease" 或 "suffering"；"physiology" 来自希腊语 "physiologia"，意思是 "the study of nature"。因此，"pathophysiology" 意思就是 "the study of the effects of disease or injury on the functioning of the body".

"Diagnosis" 指的是通过检查、测试、观察等方式确定疾病或健康状况的过程。这个词来自希腊语 "diagignoskein"，意思是 "to distinguish, distinguish by signs".

英文例句及其中文翻译：

"The pathophysiological diagnosis of asthma involves identifying the underlying causes of airway inflammation and narrowing." (病理生理诊断哮喘的过程包括确定气道炎症和狭窄的潜在原因。)
"The pathophysiology of diabetes involves abnormal regulation of blood sugar levels." (糖尿病的病理生理学涉及血糖水平的异常调节。)
"A thorough pathophysiological diagnosis is important for determining the most appropriate treatment plan." (进行全面的病理生理诊断对确定最合适的治疗计划非常重要。)