Abstract
Objective To investigate calcium phosphate metabolic changes in the body of blood donors with long -term multi-fre-quency machine blood collection and the effect of oral calcium gluconate on improving the adverse reaction of the citrate anticoagulation . Methods By the method of random number table , 56 cases of blood donors were divided into three groups：calcium supplement before col-lecting group with 20 cases, calcium supplement when collecting group with 19 cases and no calcium supplement group with 17 cases.Results The serum calcium , phosphorus and PTH levels of blood donors were followed and observed , the changes appeared .After 60 min blood collection, in the group with no calcium supplement , the group with calcium supplement when collecting and the group with calcium supple-ment before collecting , serum PTH was respectively （160.23 ±29.76 ） pg/ml, （121.75 ±43.12 ） pg/ml and （104.75 ±20.99 ） pg/ml, there were differences in the three groups （ P〈0.05 ） .Conclusions The best time of calcium supplementation with oral calcium gluconate is 10 minutesbefore collecting blood .It can improve hypocalcemia symptoms , improve comfort to ensure blood donationsafety. Key words: Long-term multi-frequency machine blood collection; Citrate anticoagulant; Adverse reactions; Nursing
Published Version
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