Do nasal cannulas come in different sizes?
Nasal cannulas come in different sizes and with different flow rates. Unlike the numbered sizes of intravenous cannulas, nasal cannulas are available in sizes for adults, children and infants. According to a 2020 study , regular flow nasal cannulas provide only up to 4–6 liters per minute of supplemental oxygen.
What are the different types of nasal cannulas?
There are two types of nasal cannulas: low flow and high flow. The device has two prongs and sits below the nose. The two prongs deliver oxygen directly into your nostrils.
Which cannula should I use?
Choose an arm to cannulate: You should ask the patient if they have a preference. It is preferable to use the patient’s non-dominant arm in most cases.
What are the different sizes of cannula?
Features
| Size | Catheter O.D.mm | Flow Rate (ml/mnt) |
|---|---|---|
| 20G Pink | 1.1 | 56 |
| 22G Blue | 0.9 | 36 |
| 24G Yellow | 0.7 | 23 |
| 26G Voilet | 0.6 | 17 |
Why are cannulas used?
The purpose of cannulation is to deliver fluids, antibiotics and blood products intravenously (into the vein) to improve the condition for which a patient is being treated.
What is the best choice of cannula size?
Choice of cannula For infusions of viscous fluids such as blood, and for rapid infusions, the largest cannulae (14–16 gauge) should be used. Smaller sizes (18–20 gauge) should suffice for crystalloids.
How do I know what size my cannula is?
Smaller the gauge, wider is the cannula and has higher flow rate.
- Normal adult size: 18-20 G.
- Situations requiring rapid fluid transfusion like trauma: 14-16 G.
- Preferred pediatric size: 22 G.
- Infants and neonates: 24-26 G.
Which cannula is used for adults?
Peripheral IV cannula: The most commonly used IV cannula, the peripheral IV cannula is usually used for emergency room and surgical patients, or for those individuals who undergo radiological imaging. Each of these IV lines is used for up to four days and not beyond that.