Search results
Results from the WOW.Com Content Network
An elastic tourniquet used to temporarily restrict blood flow. The tourniquet distends the veins, making them more palpable and visible.. There are many ways in which blood can be drawn from a vein, and the method used depends on the person's age, the equipment available, and the type of tests required.
Nurses and other healthcare practitioners can easily pass IV cannula and other parenteral dosage with the help of a vein finder. Luminetx introduced a device called VeinViewer in 2006, [2] and Accuvein introduced a product called Accuvein in 2008. [3] [4] The machines in the United States cost about $15,000 as of 2015. [5]
What links here; Upload file; Special pages; Printable version; Page information
An X-ray is used to guide the catheter to the area of blockage. A dye is inserted through the catheter to make the places of blockage visible. When the catheter is in position, a thin wire with a balloon is guided to the place of blockage. The balloon is inflated to widen the artery, allowing the blood to flow freely.
A phlebotomy draw station is a place where blood is drawn from patients for laboratory testing, transfusions, donations, or research purposes. The blood is typically drawn via venipuncture or a finger stick by a healthcare professional such as a phlebotomist , nurse , or medical assistant . [ 21 ]
Blood is drawn from the right arm, platelets are extracted using the machine, and the remaining blood components are returned through the left arm. Side effects of the donation of platelets generally fall into three categories: blood pressure changes, problems with vein access, and effects of the anticoagulant on the donor's calcium level.
The erythrocytes absorb more light because they are oxygenated. Considering that aspect, we can deduce that venous blood has a light absorption different from arterial blood (in which sanguine viscosity is greater, due to the higher concentration of CO 2. In that sense, venous blood has a greater ability to reflect light.
The cephalic vein is often visible through the skin, and its location in the deltopectoral groove is fairly consistent, making this site a good candidate for venous access. Permanent pacemaker leads are often placed in the cephalic vein in the deltopectoral groove. The vein may be used for intravenous access, as large bore cannula may be easily ...