title: Serum and intracellular electrolytes in patients with and without pain.
abstract: The effect of acute stress, with and without pain, on serum and mononuclear cell cation content was studied in 205 healthy women in their last trimester of pregnancy or during normal labour, in patients with acute medical conditions in which pain was or was not present, in acute surgical conditions, and immediately prior to elective surgery. In all subjects there was a fall in serum sodium, potassium, magnesium and calcium concentrations during stress, with an apparent shift into the intracellular space. An inverse correlation was present between the severity of pain and the fall in serum cations.
authors.affiliation: Department of Internal Medicine B, Shaare Zedek Medical Centre, Jerusalem, Israel.
authors.forename: N
authors.initials: N
authors.lastname: Weissberg
authors.forename: G
authors.initials: G
authors.lastname: Schwartz
authors.forename: O
authors.initials: O
authors.lastname: Shemesh
authors.forename: B A
authors.initials: BA
authors.lastname: Brooks
authors.forename: N
authors.initials: N
authors.lastname: Algur
authors.forename: U
authors.initials: U
authors.lastname: Eylath
authors.forename: A S
authors.initials: AS
authors.lastname: Abraham
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D002118:Calcium / Q000097:blood; D002412:Cations; D004573:Electrolytes / Q000097:blood*; D005260:Female; D006801:Humans; D007743:Labor, Obstetric / Q000097:blood; D008274:Magnesium / Q000097:blood; D008297:Male; D008875:Middle Aged; D010146:Pain / Q000097:blood*; D011188:Potassium / Q000097:blood; D011247:Pregnancy; D012964:Sodium / Q000097:blood; D013312:Stress, Physiological / Q000097:blood*; D013514:Surgical Procedures, Operative
chemical_list: D002412:Cations; D004573:Electrolytes; D012964:Sodium; D008274:Magnesium; D011188:Potassium; D002118:Calcium