A 63-year-old man becomes oliguric 2 days following an open cholecystectomy. Which of the following findings would suggest that prerenal ARF is a major factor in the etiology?

Medicine

A 63-year-old man becomes oliguric 2 days following an open cholecystectomy. Which of the following findings would suggest that prerenal ARF is a major factor in the etiology?

True about Postural Hypotension:

A 25 years old unidentified male from roadside was brought by police…

First time causative agent of AIDS was discovered in: