Many people suffer from latex allergies. Nitrile gloves ;are preferred because they are made of synthetic rubber. This means that even if the glove wearer isn't allergic to latex, it still might be a good idea to switch to nitrile. ;
There are definitely uses for latex gloves, but as you'll soon see, nitrile gloves have many compelling advantages. Avoiding allergies is just the beginning. ;
1. Nitrile is also stronger than latex – in fact, it's up to 3 times more puncture resistant! Although you give up some strength and flexibility with nitrile, it's much more puncture-resistant than natural rubber gloves. And when you're dealing with sharp needles, you don't want to take any chances. ;
2. Due to improved manufacturing techniques, nitrile is closing the gap significantly with latex when it comes to comfort and dexterity. It used to be that there was a big difference in tactile sensation between nitrile and latex gloves. While that is still partially true, manufacturing techniques continue to improve, and the difference between latex and nitrile isn't as great as it once was.
All this, combined with the price stability of nitrile, has glove-wearers steadily migrating from latex to nitrile. ;
3. One final reason to "never bet on latex" has to do with price. The price of latex is incredibly volatile since it's made from natural rubber. Nitrile prices are a lot less volatile, and production techniques continue to get better. Since nitrile is a man-made product, the production is not as subject to the whims of Mother Nature as latex. NBR (nitrile butadiene rubber) is used in many different products – aeronautical application, footwear, any kind of molded goods, adhesives, sealants, sponges, foam, and also, of course, gloves.
What is a Glass Syringe?
A glass syringe ;is a glass barrel with a plunger. It is used to draw out or inject fluids and gasses. Glass syringes can have a variety of tips attached to them, from needles for vaccines to a wide tube for feeding baby animals. Originally, all syringes were made of glass, but plastics have emerged as a contending material.
A glass syringe contains much lower levels of contaminants that will react with delicate cures. They may leach traces of certain metals into medicine, but these trace amounts do not react with medicine as poorly as plastics. Unfortunately, the plungers of glass syringes may also be coated with silicone in order to make them slide more easily, and this lubricant can also react poorly with medicine.
Glass syringes are also a better choice when storing blood samples that will later be used for arteriolar blood gas (ABG) testing. An ABG test is used to determine the pH of blood, its level of oxygen and nitrogen, and many other attributes. It's used to diagnose many conditions, such as whether or not the blood is becoming oxygenated in the lungs. A glass syringe is less porous than plastic; therefore, fewer gasses will escape from the blood while it is being held for study.
Spinal Needles
Spinal needles ;vary in their design, usually regarding the tip geometry, but are fundamentally similar and usually come with a stylet and introducer needle. Larger spinal needles may not require an introducer. ; ;
Spinal needles are used to inject analgesia and/or anesthetic directly into the CSF usually at a point below the second lumbar vertebra. Spinal needles enter the cerebral spinal fluid (CSF) through the membranes surrounding the spinal cord. An introducer needle is used in some cases to stabilize the insertion of the needle and aid insertion through the tough skin. ; The needle and stylet are advanced towards the dura in the intervertebral space (the stylet stops tissue from blocking the needle during insertion). An introducer needle is used in some cases to stabilize the insertion of the needle. Once through the dura and in position, the introducer is removed and the removal of the stylet enables CSF to flow into the needle hub. CSF can be collected for diagnostic purposes or a syringe may be connected to the spinal needle to inject anesthetic agents or chemotherapy agents. ;
Whilst Quinke needles tend to cut through the dura (the tough outer membrane), pencil point designs such as the ; Sprotte and Whitacre are designed to part the fibers of the dura rather than cut them, minimizing damage to the dura fibers and reducing the risk of post-dural puncture headaches. ;
Epidural needles (such as the Tuohy needle) are larger, hollow needles that enter the epidural space. ; The curve of the needle is designed to enable an inserted cannula to be threaded into the epidural space at an angle. Once the cannula is in place the epidural needle is removed. Anesthesia and analgesia can be administered via the epidural cannula. ;