<prompt> All of the following statements about hyponatremia are true, except:Pseudohyponatremia is associated with low plasma osmolalityHyponatremia associated with hyperglycemia has high plasma osmolalityHyponatremia associated with SIADH is normovolemicNSAIDs increase the potency of vasopressin  <response>: Pseudohyponatremia is associated with normal serum osmolarity. In this condition the aqueous fraction of plasma is decreased and the paiculate fraction is increased. This can result from hyperlipidemia TG1500mgdl, hypercholesterolemia or hyperprotenemia as in multiple myeloma, waldenstroms macroglobulinemia, administration of intravenous immunoglobulin Ref: Nephrology in 30 Days By Robe F. Reilly, Mark A. Perazella, page 38; Goldfranks toxicologic emergencies By Lewis R. Goldfrank, Neal Flomenbaum, page 287; Goldfranks toxicologic emergencies By Lewis R. Goldfrank, Neal Flomenbaum, page 288; Textbook Of Pharmacology By Seth 3rd edn, page29 