Appropriate tourniquet pressure for peripherally inserted central catheter placement in the upper arm.

Purpose: A peripherally inserted central catheter (PICC) placement often requires ultrasound guidance. Previous studies using an adult blood pressure cuff have suggested that veins do not easily collapse at the tourniquet pressure from diastolic to systolic blood pressure. When inserting a PICC into the basilic vein of the upper arm, a narrow blood pressure cuff should be used as a tourniquet to avoid concealing the puncture site.

Effect of sphygmomanometer cuff pressure on the differentiation of veins from arteries on ultrasound imaging: an observational cross-sectional study.

Background: Ultrasound guidance is commonly used for accessing difficult peripheral veins. For successful access, a tourniquet is required for venodilation. Tourniquets decrease the compressibility and increase the diameter of veins; they also obfuscate artery-vein differentiation on ultrasound.

Effectiveness of a novel semi-closed barrier device with a personalized exhaust in cough aerosol simulation according to particle counts and visualization of particles.

Oxygen therapy is an essential treatment for patients with coronavirus disease 2019, although there is a risk of aerosolization of additional viral droplets occurring during this treatment that poses a danger to healthcare professionals. High-flow oxygen through nasal cannula (HFNC) is a vital treatment bridging low-flow oxygen therapy with tracheal intubation. Although many barrier devices (including devices without negative pressure in the barrier) have been reported in the literature, few barrier devices are suitable for HFNC and aerosol infection control procedures during HFNC have not yet been established.