Results 251 to 260 of about 705,503 (291)
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Ionized Calcium During Plateletpheresis
Transfusion, 1978The concentration of ionized calcium (Ca++) during platelepheresis was monitored when donors received 461 ± 95 (mean ± S.D.) ml of anticoagulant acid‐citrate‐dextrose (ACD), N.I.H. formula A. Most donors experienced mild subjective symptoms (perioral tingling) during reinfusion of autologous blood.
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An ionized calcium regulated calcium clamp technique in man
Scandinavian Journal of Clinical and Laboratory Investigation, 1983A new method for calcium infusion in man is described. It is possible with this method to select, obtain and maintain a whole blood ionized calcium (WB-Ca++) level in a steady state by means of frequent ionized calcium determinations. Using the same initial calcium chloride infusion rate 17.55 mmol Ca++ per hour) in three groups of normocalcemic ...
O, Tørring, H E, Sjöberg
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The Journal of Trauma: Injury, Infection, and Critical Care, 1978
Ionized calcium (Ca2+) and ionized magnesium (Mg2+) are important intracellular "second messengers" and control exictation-contraction coupling, excitation-secretion, oxidative phosphorylation, and mitochondrial acid-base balance. The present study examines the effect of septic shock on serum (Ca2+) and (Mg2+).
D, Trunkey, M A, Carpenter, J, Holcroft
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Ionized calcium (Ca2+) and ionized magnesium (Mg2+) are important intracellular "second messengers" and control exictation-contraction coupling, excitation-secretion, oxidative phosphorylation, and mitochondrial acid-base balance. The present study examines the effect of septic shock on serum (Ca2+) and (Mg2+).
D, Trunkey, M A, Carpenter, J, Holcroft
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Serum Ionized Calcium in Nephrotic Syndrome
QJM: An International Journal of Medicine, 1976Abstract Serum ionized calcium was measured in 12 patients with nephrotic syndrome and 14 nephrotic patients during clinical remission. All subjects had normal creatinine clearance and were not receiving treatment at the time of study. The mean serum ionized calcium values of the two groups of patients, 1·08±0·10 (SD)
Lim, P. +3 more
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Ionized calcium during dialysis and ultrafiltration
Scandinavian Journal of Clinical and Laboratory Investigation, 1983The changes in ionized calcium during dialysis and ultrafiltration with albumin containing solutions were highly dependent on the total electrolyte concentration. Protein interference on the calcium electrode could not explain the observation, which was, however, consistent with the Donnan theory.
N, Fogh-Andersen +2 more
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The Effect of Sulfate on Serum Ionized Calcium
American Journal of Kidney Diseases, 1983Serum sulfate concentrations may reach five to ten times normal in renal failure patients dialyzed on a sorbent cartridge system, and these patients have elevated alkaline phosphatase levels suggesting an increased incidence of renal oseodystrophy. We studied the effect of adding sulfate on ionized calcium (Ca2+) in human serum in vitro and in rat ...
M A, Friedlander +3 more
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Evaluation of syringes for ionized calcium measurements
Scandinavian Journal of Clinical and Laboratory Investigation, 1996Commercially available ready to use syringes (Radiometer, Sarstedt, Ciba-Corning and Portex), containing heparinate as an anticoagulant have been tested to evaluate the magnitude of induced preanalytical errors. Tonometered serum pools adjusted to four Ca2+ concentrations were sampled anaerobically.Ca2+ and pH (ICA2 with 3 digits, Radiometer Medical A ...
C, Sachs, P, Rabouine, M D, Dautzenberg
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Ionized calcium measurementin vitro: Is it necessary?
Calcified Tissue International, 1985Experimental data obtained from a study on the inhibition of placental Ca-ATPase by ethacrynic acid were graphically analyzed using either total calcium or ionized calcium as the independent variable. Correct interpretation of the results required actual measurement of ionized calcium in the incubation medium.
H G, McKercher +2 more
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Effects of albumin on ionized calcium in vitro
Pediatric Emergency Care, 1991Human serum albumin is used to treat hypoproteinemia in neonates or used as a volume expander. We tested the hypothesis that the addition of human serum albumin to neonatal serum decreases the serum ionized calcium (iCa) concentration. Concentrated human serum albumin was added to 12 placental and cord serum samples to reach seven incremental ...
A, Mimouni +4 more
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Determination of ionized calcium in parotid saliva
Clinica Chimica Acta, 1980A new method for the determination of ionized calcium in parotid saliva utilizing an automatic ionized calcium analyzer (Orion Biomedical Model Space-Stat 20) was evaluated. The method showed good precision with a relative standard deviation of 2.9--3.8 per cent in the range 0.20--0.79 mmol . l-1 after 226 duplicate measurements. Mean recovery was 94.9%
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