Relationship between early serum sodium and potassium levels and AKI severity and prognosis in oliguric AKI patients

2021 ◽  
Author(s):  
Dao-Nan Chen ◽  
Jiang Du ◽  
Yun Xie ◽  
Ming Li ◽  
Rui-Lan Wang ◽  
...  
Keyword(s):  
Serum Sodium ◽  
Sodium And Potassium

Commutability of external quality assessment materials for serum sodium and potassium measurements

2019 ◽  
Vol 57 (4) ◽  
pp. 465-475 ◽  
Author(s):  
Ying Yan ◽  
Bingqing Han ◽  
Haijian Zhao ◽  
Rong Ma ◽  
Jing Wang ◽  
...  
Keyword(s):  
Quality Assessment ◽  
Serum Sodium ◽  
Inductively Coupled Plasma ◽  
External Quality Assessment ◽  
External Quality ◽  
Inductively Coupled ◽  
Evaluation Approach ◽  
Reference Methods ◽  
Plasma Mass Spectrometry ◽  
Sodium And Potassium

Abstract Background The commutability of electrolyte trueness verification materials (ETVs) and commercial general chemistry materials (GCs) was evaluated to investigate their suitability for use in an external quality assessment (EQA) program for serum sodium and potassium measurements. Methods Eighty fresh individual human samples (40 for sodium measurements and 40 for potassium measurements), six ETVs and three GCs were analyzed by five routine methods (validated methods) and by inductively coupled plasma mass spectrometry reference methods (comparative methods) for the determination of sodium and potassium. The commutability was analyzed according to Clinical and Laboratory Standards Institute (CLSI) EP14-A3 protocol and difference in bias approach, respectively. The linearity, bias and imprecision of the routine methods were also assessed according to CLSI guidelines. Results According to EP14-A3 protocol, ETVs were commutable for all assays, and GCs were commutable for 3/5 assays for sodium. ETVs were commutable in most assays except Cobas C501, while GCs showed no commutability except in case of AU5821 for potassium. According to a difference in bias approach, the commutability of ETVs was inconclusive for most routine assays for both sodium and potassium, and GCs were inconclusive for sodium and non-commutable for potassium in most routine assays. The routine methods exhibited excellent linearities and precisions. The majority and minority of relative biases between the routine and reference methods were beyond the bias limits for sodium and potassium, respectively. Conclusions Superiority in the commutability of ETVs over GCs was observed among the sodium and potassium assays whichever evaluation approach was applied.

Electrical Modifications of the Baird Flame Photometer Which Simplify Calibration and Improve Accuracy of Low Potassium Readings

1959 ◽  
Vol 5 (5) ◽  
pp. 492-495
Author(s):  
Robert C MacDuffee
Keyword(s):  
Serum Sodium ◽  
Simple Circuit ◽  
Flame Photometer ◽  
Improve Accuracy ◽  
Low Potassium ◽  
Sodium And Potassium ◽  
Sample Dilution

Abstract Simple circuit modifications to the Baird flame photometer are described which increase ease of calibration and which enable serum sodium and potassium to be determined on the same sample dilution with no loss of precision.

Viral Erythrocytic Necrosis: Some Physiological Consequences of Infection in Chum Salmon (Oncorhynchus keta)

1980 ◽  
Vol 37 (5) ◽  
pp. 799-804 ◽  
Author(s):  
John R. MacMillan ◽  
Dan Mulcahy ◽  
Marsha Landolt
Keyword(s):  
Electron Microscopy ◽  
Mortality Rate ◽  
Serum Sodium ◽  
Chum Salmon ◽  
Light And Electron Microscopy ◽  
Oxygen Depletion ◽  
Oncorhynchus Keta ◽  
Necrosis Virus ◽  
Chum Salmon Oncorhynchus Keta ◽  
Sodium And Potassium

Erythroid cells in chum salmon (Oncorhynchus keta) susceptible to infection with erythrocytic necrosis virus (ENV) were examined by light and electron microscopy. Cells of stages II, III, IV, V, and VI contained complete eyrthrocytic necrosis virions in the cytoplasm. Viruses closely resembling ENV were also detected in the nuclei of some erythroblasts. Some secondary consequences of ENV infection were a threefold greater mortality rate from vibriosis, a significantly decreased tolerance to oxygen depletion, and a decreased ability to regulate serum sodium and potassium in saltwater.Key words: viral erythrocytic necrosis, erythroblasts, pathogenesis

scholarly journals Serum Sodium and Potassium in Essential Hypertension

Circulation ◽  
1961 ◽  
Vol 24 (1) ◽  
pp. 29-33 ◽  
Author(s):  
BERNARD E. LEVINE ◽  
JOHN M. WELLER ◽  
RICHARD D. REMINGTON
Keyword(s):  
Essential Hypertension ◽  
Serum Sodium ◽  
Sodium And Potassium

scholarly journals Association of Antihypertensive Monotherapy With Serum Sodium and Potassium Levels in Chinese Patients

2009 ◽  
Vol 22 (3) ◽  
pp. 243-249 ◽  
Author(s):  
J. Y. Jiang ◽  
M. C. S. Wong ◽  
M. K. Ali ◽  
S. M. Griffiths ◽  
S. W. Mercer
Keyword(s):  
Serum Sodium ◽  
Chinese Patients ◽  
Sodium And Potassium

Normal values for serum sodium and potassium of Chinese.

1986 ◽  
Vol 32 (1) ◽  
pp. 202-202 ◽  
Author(s):  
T J Chao
Keyword(s):  
Serum Sodium ◽  
Normal Values ◽  
Sodium And Potassium

Semimicro Flame Photometry of Serum Sodium and Potassium

1956 ◽  
Vol 2 (2) ◽  
pp. 112-116 ◽  
Author(s):  
R L Dryer
Keyword(s):  
Serum Sodium ◽  
Lithium Concentration ◽  
Flame Photometry ◽  
Dilution Factor ◽  
Serum Dilution ◽  
Careful Control ◽  
Photometric Error ◽  
The Mean ◽  
Sodium And Potassium

Abstract A method for the determination of serum sodium and potassium involving only a single serum dilution is described. Samples of 0.1 ml. of serum suffice for both determinations, but larger samples may also be used. By careful control of the lithium concentration and the dilution factor the mean relative photometric error may be held to no more than 1 per cent under normal circumstances of operation.

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