Dear COPD Coach
I was diagnosed with COPD about 5 years ago.My doctor has just prescribed the use of supplemental oxygen.What do I need?
Looking to Breathe
The first thing you need to do is to discuss with your doctor what type of delivery system is best for you.This discussion should include addressing your needs not only at home, but also what you will need when you’re out and about.Make sure you document your discussion.
Your doctor will provide a certificate of medical necessity, saying that you require supplemental oxygen, and what equipment you will need.Make sure this certificate of medical necessity contains all of the items you discussed.
Your second step is to identify an oxygen supplier that is able to address the needs set forth in the certificate of medical necessity.Know that your oxygen supplier is not your doctor and cannot make decisions about the type of equipment you require.Only you and your doctor may do this!
Once you are provided equipment, you generally cannot change the type of equipment or type of delivery system for a term of five (5) years. Therefore, it is important that you choose the type of equipment and delivery system that will work best for your lifestyle!Note: If your oxygen requirements change, or your doctor feels you require different equipment or delivery system, your certificate of medical necessity should be changed.With a new certificate of medical necessity your oxygen supplier is obligated to provide equipment that fits that need.
There are two main types of supplemental oxygen, also called “modalities”: gaseous and liquid. There are pros and cons with each system as well as different variations.
In the past, many oxygen users were given both a home concentrator (for use while at home) and an “E” cylinder (for going out). The problems with this arrangement were that it required users to pull the cylinder behind them when venturing outside their home. A user’s mobility was limited to the length of their oxygen hose inside the home, making some areas inaccessible.
A recent advancement is the development of “transfill” units. In this system, gaseous oxygen can be produced in the home by a concentrator and stored in a refillable cylinder.These cylinders (“M” tanks) are small, light, and can easily be carried in a shoulder case. The length of time these smaller tanks last varies on your liter flow and the amount of pressure the cylinders are filled with.Note: some transfill units will fill at 2000 psi (pounds per square inch) while others f
ill at 3000 psi. The higher pressure provides greater capacity. This system provides you with greater mobility outside as well as inside your home and eliminates your need for frequent replacement tanks. The entire system is transportable if you need to leave your home for extended periods.
The other modality is liquid oxygen, a popular option with higher liter flow users. In this system, the oxygen is stored in liquid form in a home reservoir which must be filled on a
regular basis.You are able to use the reservoir much like the concentrator, using it to fill smaller reservoirs for greater mobility inside or outside the home. These smaller reservoirs offer longer use times even at higher liter flows. The other advantage of this system is that it is not dependent on electricity like a home concentrator. This means that oxygen use will not add to your utility bills and you will continue to have oxygen during power outages.
The main disadvantage of liquid oxygen is that the reservoir cannot be transported with travel (unless your oxygen provider allows you the use of a travel reservoir), so you must make arrangements to have a reservoir in place at your destination. Note: In many areas it is very difficult to obtain liquid oxygen. Check with suppliers in your area before deciding on liquid oxygen to make sure it is available.
Be sure to discuss all of these options with your doctor!
-The COPD Coach
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