@Ahmed7 @Cameron @thomas.holmes @Sameem @zarathustra @Eli.Tanenbaum @shmuelsash @Jwill - definitely true for post-renal azotemia in general, not sure if the “long-standing (severe)” part is meant to make this single answer rather than variable
I think these cards considered together might clear that up? Extra of the early postrenal azotemia card says high urine osmolality early on is due to functioning tubules allowing water reabsorption (which usually follows Na); and here the extra says tubular epithelium is dysfunctional causing decreased Na reabsorption, which is seen in late postrenal azotemia. Would need a more convincing source to change this I think.
Agree with CTE, unless this is directly tested, this might just make it more confusing because varies doesn’t really tell you anything. And i think the severe is meant to make it one answer like @herstein.jacob jacob mentioned
Isn’t “long standing post-renal azotemia” technically CKD (kidney damage or an estimated glomerular filtration rate (eGFR) less than 60 ml/min/1.73 m2, persisting for three months or more, irrespective of the cause)?