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free120/Block 2/Question#31 (5.3 difficulty score)
A 23-year-old woman is brought to the medical ...
Orthostatic hypotension🔍

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submitted by b1ackcoffee(26),

confused why this is not autonomic dysfunction or hyponatremia due to sweating and why is this orthostatic hypotension?

mamed  Not sure if this is correct thinking but how I got this right was: 1. She is hypovolemic 2. Likely retaining salt so water follows (ADH or just renal dynamics in general). This is how I ruled our hypokalemia and hyponatremia 3. If she is hyponatremic b/c sweating then why wouldn't she also be hypokalemic? so both have to wrong because both can't be right 4. Volume depletion ==> orthostatic hypotension +1  
blah  I thought that orthostatic hypotension was more of a chronic condition, but I fooled myself into believing that. +  

submitted by mamast16(0),

Tough question but 0.9% saline is isotonic and normally used for volume repletion is how I got it