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(pseudohypocalcemia)
15 results
  • Interference of gadolinium-based contrast agents on colorimetric calcium assays. [Journal Article]
    Clin Biochem 2014; 47(7-8):648-53Yan R, Tarr H, … Chen Y
  • CONCLUSIONS: Of all 5 GBCAs tested, only gadodiamide showed significant interference on the OCP calcium assay at clinically relevant concentrations. The NM-BAPTA assay showed minimum interference with the five GBCAs and demonstrated equal or better performance than the OCP and the arsenazo-III methods in terms of interference with GBCAs.
  • Spurious electrolyte disorders: a diagnostic challenge for clinicians. [Review]
    Am J Nephrol 2013; 38(1):50-7Liamis G, Liberopoulos E, … Elisaf M
  • Spurious electrolyte disorders refer to an artifactually elevated or decreased serum electrolyte values that do not correspond to their actual systemic levels. When a clinician is confronted with a case of electrolyte disturbance, the first question should be whether it is an artifact. Spurious electrolyte disorders (pseudohyponatremia, pseudohypernatremia, pseudohypokalemia, pseudohyperkalemia, …
  • Pseudohypocalcemia caused by perchlorate (Irenat). [Journal Article]
    Clin Chem Lab Med 2011; 49(4):665-7Durner J, Winkler-Budenhofer U, … Schönermarck U
  • CONCLUSIONS: Based on our experiments, we confirm the hypothesis that perchlorate can influence the measurement of ionized calcium by BGA. As the effect depends on the ion selective electrode that is used, it is advisable to test the blood gas analyzer with calcium and perchlorate solutions.
  • What nephrologists need to know about gadolinium. [Review]
    Nat Clin Pract Nephrol 2007; 3(12):654-68Penfield JG, Reilly RF
  • Gadolinium chelates are commonly used to improve tissue contrast in MRI. Until recently the use of gadolinium was thought to be risk-free compared with alternative contrast agents. Recent studies, however, have raised serious concerns regarding the safety of gadolinium chelates. Although safe in patients with normal kidney function, administration of these agents in people with renal dysfunction …
  • Profound pseudohypocalcemia due to gadolinium (Magnevist) contrast in a hemodialysis patient. [Case Reports]
    Am J Kidney Dis 2006; 47(2):350-2Davenport A, Whiting S
  • We report the first case of profound "pseudohypocalcemia" after the administration of the gadolinium-based contrast media dimeglumine gadopentate (Magnevist; Schering Diagnostics AG, Berlin, Germany) to a long-standing hemodialysis patient. Initial calcium measurements were made by using our routine laboratory colorimetric method based on o-Cresolphthalein (Roche Modular-P; Roche Diagnostics Ltd,…
  • Pseudohypocalcemia after magnetic resonance imaging with gadolinium in patients with cirrhosis. [Journal Article]
    Liver Transpl 2004; 10(1):136-40Kefalas CH, Murray NG, … Klintmalm GB
  • Hypocalcemia in patients with cirrhosis may be due to a number of causes. We noted a relationship between injection with gadodiamide, a particular gadolinium chelate, during magnetic resonance imaging of the liver and the development of a falsely low serum total calcium level in a patient with cirrhosis. A cross-reference and retrospective chart review identified 10 additional patients in whom th…
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