If someone is being treated in a hospital or clinic and needs medical help, doctors and nurses may need to put an IV (otoscope) cannula. This is a thin tube that is gently inserted into vein of the person. A catheter is a very useful medical tool that enables the administration of medicine or fluids directly into someone's bloodstream. The size of the IV cannula is something I cannot stress enough that it needs to be accurate for many reasons. Not only is it easier for the patient but also ensures that the medicine performs well and gets to work in a short time within their body.
Comforts:Size of IV cannula is the most important comfort for patient. If the cannula is too small, it will either take longer to put in or be more painful during insertion. This can cause the patient to be fearful or uncomfortable. However, a large cannula may cause discomfort or bruises and it can also damage the skin around where they are implanted. If a small cannula is used, the medicine or fluids may not flow fast enough due to this slow rate and thus create delayed treatment for the patient. That is why it is important to select a size that fits well for both comfort and treatment effectiveness.
There are a number of things that doctors and nurses consider when it comes to choosing the right size of IV cannula. The first thing is they always think about the health and medical condition of patient. They also consider the patient's age, as younger patients differ from older ones. Also the patients body size plays a role, larger people may have bigger veins. They also consider what the patient needs it for. What is also very important are the actual size of the veins. So, for big veins that you can locate easily you will want a larger cannula and vice versa. EXPERT-TRAINING: Because it is important for health workers to choose the correct size fitting each patients especially they need be well trained and experienced.
Small IV cannulas are used in good as well as bad applications of medical treatments. Tiny cannulas are much more comfortable for the patient. They tend to do less damage to the veins, which is a major plus. For patients with smaller veins, they may be easier to use cannulas as well. The only downside of using tiny cannulas is that they may not be able to deliver the medicine as rapidly as required. But larger cannulas can deliver medication or fluid loads more quickly, which is critical in an emergency. However, it may add to the pain or even result in an issue with its placing site. Doctors and nurses are trained in using the cannula ranging from as small to start with, but they should consider these within their decision for a form depending upon each individual.
Keeping in mind the particular vein you want to puncture, choose a needle which is 1/3rd or half the size of its diameter (so that it can ease down like this);