Fig. 1
From: Hyponatremia in the intensive care unit: How to avoid a Zugzwang situation?
Key points when managing severe hyponatremia in the ICU. Asterisk in the absence of concurrent increased EFCV. a A rare instance in routine clinical practice. b High water intake along with increased AVP levels may coexist. CKD chronic kidney disease, SIADH syndrome of inappropriate antidiuretic secretion, \({\rm NA}_{\rm u}^{+}\)urine sodium concentration