منابع مشابه
Early plasma creatinine values in discordant twins.
It has been suggested that impairment of placental perfusion prior to delivery may manifest in early postnatal increase of creatinine values. We hypothesized that the smaller of a discordant set of twins would have a higher initial plasma creatinine value and decided to measure early plasma creatinine levels in discordant twins in order to evaluate whether this value may serve as an index of im...
متن کاملAn unexpected limit of expected values
Let t 0. Select numbers randomly from the interval [0, 1] until the sum is greater than t. Let (t) be the expected number of selections. We prove that (t) = et for 0 t 1. Moreover, limt→+∞ ( (t)− 2t)= 3 . This limit is a special case of our asymptotic results for solutions of the delay differential equation f ′(t) = f (t) − f (t − 1) for t > 1. We also consider four other solutions of this equa...
متن کاملTable 1. Urinary Creatinine and Creatinine Clearance Values in Four Patients Receiving Cephalosporins
of cephalothin immediately post-infusion were 250 mg/L after a 2-g infusion, 100 mg/L after a 1-g infusion. The increase in apparent plasma creatinine declined more slowly with time than did cefoxitin. This is likely due to the higher concentrations of creatinine in plasma and to the additional interference by desacetylcephalothin. Cefoxitin is essentially unmetabolized. Two 24-h urine specimen...
متن کاملCritical Serum Creatinine Values in Very Preterm Newborns
BACKGROUND Renal failure in neonates is associated with an increased risk of mortality and morbidity. But critical values are not known. OBJECTIVE To define critical values for serum creatinine levels by gestational age in preterm infants, as a predictive factor for mortality and morbidity. STUDY DESIGN This was a retrospective study of all preterm infants born before 33 weeks of gestationa...
متن کاملEstablishment of creatinine clearance reference values for older women.
Age-adjusted reference ranges for creatinine clearance were determined in 279 women, ages 40-95 years, who were housed in a metabolic research unit and consumed a meat-free diet. Creatinine clearance, but not serum creatinine, declined with age by 0.63 mL/min per 1.73 m2 per year. Serum and urine creatinine concentrations, used to calculate clearances, were analyzed by a kinetic Jaffé procedure...
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ژورنال
عنوان ژورنال: Clinical Chemistry
سال: 2016
ISSN: 0009-9147,1530-8561
DOI: 10.1373/clinchem.2016.263038