BACKGROUND The purpose of this study was to determine the level of heat stress to construction workers using Thermal Work Limit (TWL) and Wet Bulb Globe Temperature (WBGT) indices and by measuring Urine Specific Gravity (USG) among construction workers in Iran and comparing the appropriateness of these indices for measuring heat stress in Iran climate. METHODS This comparative and experimenta...

OBJECTIVES Document the proportion of dogs with perioperative hypotension and explore the association of sex, age and body mass and indices of hydration with mean arterial blood pressure (MAP) in two cohorts of young, healthy anaesthetised dogs. METHODS Dogs were anaesthetised with a standardised protocol. The proportion of dogs with invasively measured MAP <60 mmHg for ≥10 min was recorded. ...

UNLABELLED There is a lack of studies concerning hydration status of young athletes exercising in the heat. PURPOSE To assess preexercise hydration status in young soccer players during a summer sports camp and to evaluate body- water balance after soccer training sessions. METHODS Initial hydration status was assessed in 107 young male soccer players (age 11-16 yr) during the 2nd day of th...

The aim of this study was to compare daily hydration profiles of competitive adolescent swimmers and less active maturation- and sex-matched controls. Hydration profiles of 35 competitive adolescent swimmers (male n = 18, female n = 17) and 41 controls (male n = 29, female n = 12) were monitored on 4 consecutive days. First morning hydration status was determined independently by urine specific...

CASE SUMMARY A 10-month-old neutered male domestic shorthair cat presented with a 4 month history of polyuria and polydipsia. After a thorough diagnostic work-up the only abnormal findings were hyposthenuria and an elevated random plasma osmolality level. Trial therapy with the oral and ophthalmic forms of desmopressin failed to concentrate urine. A modified water deprivation test confirmed the...

BACKGROUND Water-loss dehydration (hypertonic, hyperosmotic, or intracellular dehydration) is due to insufficient fluid intake and is distinct from hypovolemia due to excess fluid losses. Water-loss dehydration is associated with poor health outcomes such as disability and mortality in older people. Urine specific gravity (USG), urine color, and urine osmolality have been widely advocated for s...

Background: Symmetric dimethylarginine (SDMA) has recently been advocated as a marker to detect renal disease. Aims: This prospective study evaluated and compared the diagnosis of renal disease using SDMA, creatinine elevated above population derived reference intervals (RI) with dilute urine and creatinine in relation to an individual’s prior results (RCV). Results: Over the study period 214 c...

The objective of the study was to investigate the hydration status and fluid balance of elite European youth soccer players during three consecutive training sessions. Fourteen males (age 16.9 ± 0.8 years, height 1.79 ± 0.06 m, body mass (BM) 70.6 ± 5.0 kg) had their hydration status assessed from first morning urine samples (baseline) and pre- and post-training using urine specific gravity (US...

OBJECTIVE To determine whether healthy and traumatized dogs receiving a constant rate infusion (CRI) of either morphine or fentanyl have decreased urine production. STUDY DESIGN Prospective randomized controlled study. ANIMAL POPULATION Eighteen privately owned previously healthy dogs that had undergone trauma were included. Twenty-three privately owned healthy dogs were used as the control...