» Articles » PMID: 27859624

Hemolysis Index to Detect Degree of Hydroxocobalamin Interference with Common Laboratory Tests

Overview
Journal J Clin Lab Anal
Publisher Wiley
Date 2016 Nov 19
PMID 27859624
Citations 2
Authors
Affiliations
Soon will be listed here.
Abstract

Background: Cyanokit (hydroxocobalamin OHCo) is the recommended treatment for cyanide poisoning. OHCo is a red chromophore and may cause interference with some biochemical measurements. In this study, we assessed the possible interference of Cyanokit on several cooximetric and plasma biochemistry tests and then determined the possible mathematical correction for some analytes. We studied the possibility of detecting and evaluating the degree of interference with the hemolysis index (HI) provided by our autoanalyzer because it is not possible to measure the OHCo concentration in conventional laboratories.

Methods: Several pools of plasma samples spiked with increasing concentrations of OHCo were prepared. Each one was compared to the pool without interferent. Interference was considered when the bias was more than 10%. An interferograph was developed for those analytes with significant interference. The correlation between interference agent concentration and HI was calculated by Spearman correlation coefficient. We used multiple regression analysis to determine the mathematical correction for amylase, creatinine, and lactate.

Results: We detected significant interference in the amylase, carboxyhemoglobin, creatinine, creatine kinase, bilirubin, lactate, and total protein measurement. The HI was positively correlated with OHCo concentration. Corresponding equations for estimating lactate and creatinine concentrations were obtained.

Conclusions: OHCo interferes with many laboratory assays in an unpredictable way making some results invalid and confounding clinical decision making. We can detect and evaluate the degree of interference with the HI. We can still estimate real creatinine and lactate levels using the regression equation obtained in this study.

Citing Articles

Intraosseous administration of hydroxocobalamin after enclosed structure fire cardiac arrest.

Mastenbrook J, Zamihovsky R, Brunken N, Olsen T BMJ Case Rep. 2021; 14(3).

PMID: 33692053 PMC: 7949448. DOI: 10.1136/bcr-2020-239523.


Outcomes after the administration of hydroxocobalamin.

Pruskowski K, Britton G, Cancio L Int J Burns Trauma. 2020; 10(5):231-236.

PMID: 33224611 PMC: 7675202.

References
1.
Curry S, Connor D, Raschke R . Effect of the cyanide antidote hydroxocobalamin on commonly ordered serum chemistry studies. Ann Emerg Med. 1994; 24(1):65-7. DOI: 10.1016/s0196-0644(94)70164-4. View

2.
Borron S, Baud F, Barriot P, Imbert M, Bismuth C . Prospective study of hydroxocobalamin for acute cyanide poisoning in smoke inhalation. Ann Emerg Med. 2007; 49(6):794-801, 801.e1-2. DOI: 10.1016/j.annemergmed.2007.01.026. View

3.
Gourlain H, Caliez C, Laforge M, Buneaux F, P Levillain . Study of the mechanisms involved in hydroxocobalamin interference with determination of some biochemical parameters. Ann Biol Clin (Paris). 1994; 52(2):121-4. View

4.
Forsyth J, Mueller P, Becker C, Osterloh J, Benowitz N, Rumack B . Hydroxocobalamin as a cyanide antidote: safety, efficacy and pharmacokinetics in heavily smoking normal volunteers. J Toxicol Clin Toxicol. 1993; 31(2):277-94. DOI: 10.3109/15563659309000395. View

5.
Vest P, Renaudeau C, Tellal S, Ragot C, Renard C . [Interference of hydroxocobalamine treatment on commun biochemical determinations]. Ann Biol Clin (Paris). 2002; 60(1):57-64. View