background: substitution of arterial with venous blood samples to estimate blood gas status is highly preferable due to practical and safety concerns. numerous studies support the substitution of arterial by venous blood samples, reporting strong correlations between arterial and venous values. this study further investigated the predictive ability of venous blood samples for arterial acid-base...

A weakening of the venous valves and walls is a common cause varicose veins. Blood might flow back pool in veins due to damaged valves, causing them enlarge. Weakened vein are longer, broader, less elastic than normal, valve flaps split, resulting increased blood pooling twisted Primary characterised by valvular incompetence reflux, which have long been assumed be cause. Recent research, on oth...

Background Blood sampling is a usual and painful procedure on preterm infant. Repeating painful procedures may affect the process of normal brain development and Pain management is important for nurses. This study was conducted to evaluate and compare pain score in two sites of blood sampling in preterm infants. Materials and Methods Blood sampling is a usual and painful procedure on preterm in...

A blood clot in the veins that drain the blood from the brain is called a sinus or cerebral vein thrombosis. It is an uncommon type of clot, affecting about 1500 people in the United States per year. Normally, blood is transported through arteries into the brain, where it delivers oxygen and nutrients. Once the blood has done its job, it collects into small veins (known as cerebral veins) that ...

background: venous diseases including varicose veins and chronic venous insufficiency are one of the most important pathogenic factors worldwide. high prevalence of varicose veins and its complications is an emerging problem in the twenty-first century. this study aimed to determine the prevalence and associated risk factors of varicose veins in female hairdressers in shahroud, north of iran in...

MHD viscous oscillating type blood flow through lumen in arteries and varicose veins motivating to the study of disordered vessels veins. The nervous system, like other micro respiratory system is modeled geometrically shape tapered curvy walls varying cross section which new approach this problem same has advantage compared geometrical channel shapes. Blood taken as viscoelastic optically thic...

Adrenal vein sampling is the gold standard for identification of surgically curable primary aldosteronism, but its accuracy might be hindered by blood dilution from accessory vein blood. We prospectively investigated the presence of accessory veins draining into adrenal veins and their effect on the selectivity index (SI) in 74 consecutive patients undergoing adrenal vein sampling. On the right...