ABSTRACT
Objective To explore the regional reference intervals of biomarkers in umbilical blood for diagnosis of early onset bacterial infection in the healthy term newborns .Methods The umbilical blood samples were collected from 1 476 term newborns in our hospital during January 2012 to October 2013 ,of which 1 191 were healthy infants and enrolled in this study .Then the levels of high sensitive c‐reaction protein(hs‐CRP) ,procalcitonin(PCT) ,interleukin(IL)‐6 ,IL‐8 ,platelet(PLT) as well as white blood cell (WBC) were detected in the umbilical blood .These values were analyzed by SAS 9 .0 ,data were described through upper or lower limits or upper limits respectively .Differences among different subgroups were judged through analysis of Kruskal‐Wallis t test or Mann‐Whitney test respectively .Results The upper limits for hs‐CRP was 3 .1 mg/L ,for PCT was 0 .18 ng/mL ,while the refer‐ence interval for IL‐6 was 56 .6(11 .9-133 .2)ng/L ,and IL 8 was 976 .0(111 .7-2 507 .1)ng/L ,PLT was 242 .0(120 .0-339 .0)× 109/L and for WBC was 12 .9(7 .6-19 .3 )× 10 9/L ,and the value of PLT varied from vaginal delivery group to caesarean section group(230 vs .254 ,Z= 4 .301 ,P0 .05) .Otherwise ,compared with the regional reference intervals ,CRP and PCT in early onset neonatal sepsis group increased(P0 .05) .Conclusion The reference intervals of biomarkers in umbilical blood for diagnosis of early onset bacterial infection were established which may make great contribution for early diagnosis of bacterial infection for the newborns .
ABSTRACT
Objective To discuss the relationship of drip velocity of nitrate on blood pressure while treating coronary disease,in order to provide appropriate drip velocity for clinical treatment.Methods 155 patients with coronary disease using nitrate to lower blood pressure were selected.They were divided into the nitro glycerin group(85 cases) and the isosorbide mononitrate group( 70 cases) according to difference of medication.The velocity of drugs was adjusted on basis of blood pressure changes.The blood pressure changes at different drip velocities were observed and compared.Results The systolic pressure and the diastolic pressure between two groups showed no difference at 20 drops/min,but the results were the opposite at 30 drops/min.The systolic pressure and the diastolic pressure in the nitro glycerin group showed evident changes at different drip velocities,but in the isosorbide mononitrate group,these changes were not so significant.9 patients in the nitro glycerin group had headache during treatment,no headache occurred in the isosorbide mononitrate group.Conclusions Intravenous use of nitrate at a velocity of 20 drops/min is relative secure.The risk of hypotension will increase if the medication speed increases.lsosorbide mononitrate has little influence on blood pressure.