False elevations in urinary metanephrines: under-recognised pitfall with 24-hour urinary volume collection
نویسندگان
چکیده
منابع مشابه
24-HOUR URINARY CALCIUM EVALUATION IN A HEALTHY POPULATION SAMPLE AND IN PATIENTS WITH UROLITHIASIS
A study was designed to evaluate the normal value of 24 hr urinary calcium levels in the city of Yazd. The average urinary excretion of calcium in a sample of 329 persons randomly selected was 232 mg/day, while patients with a history of recurrent urolithiasis excreted 20X mg/day. There is evidence which shows that more important factors than the amount of urinary calcium exist which influe...
متن کامل24-hour urinary calcium in primary hyperparathyroidism.
OBJECTIVE To establish whether urinary and serum calcium levels are correlated in patients with primary hyperparathyroidism (PHPT) and to evaluate related factors including serum levels of parathyroid hormone (PTH) and vitamin D, age, gender and renal function. DESIGN Retrospective review on patients undergoing a parathyroidectomy for PHPT from 2000- 2008. Data collected included: age, sex, p...
متن کاملDeterminants of 24-hour urinary oxalate excretion.
BACKGROUND AND OBJECTIVES Higher levels of urinary oxalate substantially increase the risk of calcium oxalate kidney stones. However, the determinants of urinary oxalate excretion are unclear. The objective was to examine the impact of dietary factors, age, body size, diabetes, and urinary factors on 24-h urinary oxalate. DESIGN, SETTING, PARTICIPANTS, AND MEASUREMENTS We conducted a cross-se...
متن کاملFactors associated with 24-hour urinary volume: the Swiss salt survey
BACKGROUND Low 24-hour urine volume (24 UV) may be a significant risk factor for decline in kidney function. We therefore aimed to study associated markers and possible determinants of 24 UV in a sample of the Swiss population. METHODS The cross-sectional Swiss Salt Study included a population-based sample of 1535 (746 men and 789 women) individuals from three linguistic regions of Switzerlan...
متن کاملcorrelation of 2 hour, 4 hour, 8 hour and 12 hour urine protein with 24 hour urinary protein in preeclampsia.
objective: to find shortest and reliable time period of urine collection for determination of proteinuria. materials and methods: it is a prospective study carried out on 125 pregnant women with preeclampsia after 20 weeks of gestation having urine albumin >1 using dipstick test. urine was collected in five different time intervals in colors labeled containers with the assistance of nursing sta...
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ژورنال
عنوان ژورنال: BMJ Case Reports
سال: 2021
ISSN: 1757-790X
DOI: 10.1136/bcr-2020-241147