{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,9,23]],"date-time":"2025-09-23T14:11:06Z","timestamp":1758636666295},"reference-count":6,"publisher":"Oxford University Press (OUP)","issue":"6","license":[{"start":{"date-parts":[[2018,5,1]],"date-time":"2018-05-01T00:00:00Z","timestamp":1525132800000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/academic.oup.com\/journals\/pages\/open_access\/funder_policies\/chorus\/standard_publication_model"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":[],"published-print":{"date-parts":[[2018,5,1]]},"abstract":"Abstract<\/jats:title>\n \n Background<\/jats:title>\n Chloride disorders (hypochloremia, hyperchloremia) and bicarbonate disorders (hypobicarbonatemia, hyperbicarbonatemia) are common in clinical medicine and indicate metabolic and\/or respiratory acid\u2013base disorders. The normally inverse relationship between chloride and bicarbonate concentrations in the blood is altered, however, by changes in fluid balance, i.e., water excess or deficit, with resulting changes in sodium and other electrolyte concentrations and by anion gap metabolic acidosis, which lowers bicarbonate concentrations but not the chloride concentrations.<\/jats:p>\n <\/jats:sec>\n \n Methods<\/jats:title>\n We used formulas derived over a decade ago that utilize dry slide laboratory technology to adjust plasma chloride and bicarbonate concentrations for changes in water balance, as reflected in changes in plasma sodium concentrations and in the plasma anion gap. We then prospectively validated these formulas in 736 consecutive adults, 499 having abnormal basic metabolic panel results and 237 having normal panel results, using modern wet laboratory technology.<\/jats:p>\n <\/jats:sec>\n \n Results<\/jats:title>\n Plasma chloride and bicarbonate concentrations were inversely correlated (2-tailed P-value &lt;0.0001), but the correlations were only modest (Spearman r: \u22120.48 for the abnormal group and \u22120.41 for the normal group). After adjusting the plasma chloride and bicarbonate concentrations using the 2 prior formulas, the inverse correlations were very high, with Spearman r: \u22120.998 for the abnormal group and \u22120.999 for the normal group.<\/jats:p>\n <\/jats:sec>\n \n Conclusions<\/jats:title>\n Adjusting plasma chloride and bicarbonate concentrations for any water imbalance and anion gap alterations leads to very high inverse correlations between these 2 anions, allowing accurate assessment of either subtle or overt acid\u2013base disorders.<\/jats:p>\n <\/jats:sec>","DOI":"10.1373\/jalm.2017.024794","type":"journal-article","created":{"date-parts":[[2018,7,23]],"date-time":"2018-07-23T23:05:21Z","timestamp":1532387121000},"page":"833-840","source":"Crossref","is-referenced-by-count":2,"title":["Adjusted Plasma Chloride and Bicarbonate Concentrations: An Approach to Identifying Acid\u2013Base Disorders"],"prefix":"10.1093","volume":"2","author":[{"given":"Mark","family":"Feldman","sequence":"first","affiliation":[{"name":"Department of Internal Medicine, Texas Health Presbyterian Hospital Dallas, Dallas, TX"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Beverly","family":"Dickson","sequence":"additional","affiliation":[{"name":"Department of Clinical Pathology, Texas Health Presbyterian Hospital Dallas, Dallas, TX"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"286","published-online":{"date-parts":[[2018,5,1]]},"reference":[{"key":"2022020110200248400_B1","doi-asserted-by":"crossref","first-page":"161","DOI":"10.1097\/00005792-198005000-00001","article-title":"Simple and mixed acid-base disorders: a practical approach","volume":"59","author":"Narens","year":"1980","journal-title":"Medicine (Baltimore)"},{"key":"2022020110200248400_B2","doi-asserted-by":"crossref","first-page":"154","DOI":"10.1002\/jcla.20124","article-title":"Use of sodium concentration and anion gap to improve correlation between serum chloride and bicarbonate concentrations","volume":"20","author":"Feldman","year":"2006","journal-title":"J Clin Lab Anal"},{"key":"2022020110200248400_B3","article-title":"Defining, establishing and verifying reference intervals in the clinical laboratory; approved guideline-third edition","volume-title":"CLSI document EP28-A3C","author":"CLSI","year":"2008"},{"key":"2022020110200248400_B4","unstructured":"Spearman rank-order correlation coefficient. http:\/\/vassarstats.net (Accessed June 2017)."},{"key":"2022020110200248400_B5","unstructured":"Mann\u2013Whitney U-test. http:\/\/vassarstats.net (Accessed June 2017)."},{"key":"2022020110200248400_B6","first-page":"95","article-title":"Reference intervals: practical aspects","volume":"19","author":"Horwitz","year":"2008","journal-title":"EJIFCC"}],"container-title":["The Journal of Applied Laboratory Medicine"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/academic.oup.com\/jalm\/article-pdf\/2\/6\/833\/42354566\/2_2_6_833.pdf","content-type":"application\/pdf","content-version":"vor","intended-application":"syndication"},{"URL":"https:\/\/academic.oup.com\/jalm\/article-pdf\/2\/6\/833\/42354566\/2_2_6_833.pdf","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2022,2,1]],"date-time":"2022-02-01T10:20:15Z","timestamp":1643710815000},"score":1,"resource":{"primary":{"URL":"https:\/\/academic.oup.com\/jalm\/article\/2\/6\/833\/5587554"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2018,5,1]]},"references-count":6,"journal-issue":{"issue":"6","published-online":{"date-parts":[[2018,5,1]]},"published-print":{"date-parts":[[2018,5,1]]}},"URL":"https:\/\/doi.org\/10.1373\/jalm.2017.024794","relation":{},"ISSN":["2576-9456","2475-7241"],"issn-type":[{"value":"2576-9456","type":"print"},{"value":"2475-7241","type":"electronic"}],"subject":[],"published-other":{"date-parts":[[2018,5,1]]},"published":{"date-parts":[[2018,5,1]]}}}