#Part 1 venturi mask

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1. VENTURY MASK -- OXYGEN THERAPY Dr Nisar Ahmed Arain Assistant Professor Anesthesia/Critical Care/ER

2. Sources of oxygen

3. CYLINDER OR TANK

4. OXYGEN FLOW RATES -DTERMINES THE AMOUNT OF OXYGEN DELIVERED TO THE PATIENT -IT IS MEASURED IN LITERS PER MINUTE -RATE VARIES ACCORDING TO PATIENTS CONDITION AND ROUT OF OXYGEN CONCENTRATION

5. -- TO REGULATE OXYGEN PERCEENTAGE CONCENTRATION -- WE CAN TAKE HELP OF -- OXYGEN ANALYSERS -- ABG ANALYSIS -- PULSE OXYMETRY

6. OXYGEN DELIVERY SYSTEMS -- A number of systems available --Choice depends on client’s oxygen needs, comfort and developmental considerations

7. 1-Nasal canula 2-Nasal catheter 3-Trans Tracheal catheter 4-Simple Mask 5-Partial rebreather Mask 6-Non rebreather Mask 7-Venturi Mask 8-Oxygen tent Following are the Parts and types of oxygen delivery system

8. NASAL CANULA OR NASAL PRONGS

9. -Common inexpensive device -Easy to apply -Does not interfere with eating or talking -Relatively comfortable -Permits some freedom of movement -Well tolerated by clients

10. -Delivers relatively low concentration of oxygen (24% to 45%) at a flow rate of 2L to 6L per minute -Above 6L per minute client tends to swallow air and FiO2 is not increased

11. NASAL CATHETER -Nasal catheter is infrequently used as it is uncomfortable -It may cause trauma -It is inserted through nostril with the end of the catheter resting in the oropharynx.

12. -Nasal catheter should be changed to the another nostril every 8 hours -Gastric distension often occurs.

13. FACE MASKS -Oxygen mask is fitted carefully to avoid leakage of oxygen -It shouldn’t be too light

14. COMMONLY USED TYPES OF MASKS ARE FOLLOWING 1-Simple Face Masks 2-Patrtial rebreather Mask 3-The non rebreather Mask 4-Venturi Mask

15. 1-Simple face Masks -Has vents on the sides for the room air to leak in and there by diluting the source oxygen -Also allows exhaled CO2 to escape -This is used when increased O2 delivery is needed for short periods(e.g. less then 12 hrs )

16. 1-Simple face masks delivers the oxygen concentrations from 40% to 60% at a flow rate of 5L to 8L per minute respectively. 2-Due to risk of retaining CO2 never apply a simple mask with a delivery rate of less then 5L Per minute

17. 2-PARTIAL REGREATHER MASK - It delivers oxygen concentration of 60% to 90% at a flow rate of 6L to 10L respectively

18. -Oxygen reservoir bag attached to the mask allows the client to rebreathe about the first third of the exhaled air -It increases FiO2 by recycling expired O2 -It should not totally deflate

19. 3-The non Rebreather Mask -It delivers the highest O2 concentration possible(95% to 100%) at a flow rate of 10L to 15L per minute

20. -One way valves on the Mask and between the Mask and the reservoir bag prevent the room air and the clients exhaled air entering the bag so only oxygen in the bag is inspired -This also should not deflate

21. 4-Venturi Mask -It delivers oxygen concentrations varying from 24% to 40% or 50% at a flow rate of 4L to 10L per minute

22. -The colour of the device reflects the delivered oxygen concentration

23. -Designed for patients who cannot wear a Mask or Nasal prongs (e.g. facial surgery or trauma) -Provide varying concentration of oxygen e.g. 30% to 50% at 4L to 8L per minute

24. TRANSTRACHEAL OXYGEN DELIVERY SYSTEM -- Transtracheal oxygen therapy is a superior method of delivering oxygen directly into the lungs by a small flexible catheter which passes from the lower neck into the trachea --In this technique the client requires less oxygen(0.5L to 2L per minute) as it enters directly into the lungs

25. In infants: OXYGEN HOOD -A rigid plastic dome that encloses an infant’s head -It provides precise oxygen levels and high humidity

26. The gas should not be allowed to blow directly into infant’s face. And Hood should not rub against infant’s neck, chin or shoulder

27. In Children: OXYGEN TENT

28. Delivers approximately 30% of oxygen -Rectangular, clear, plastic canopy with outlets that connect to oxygen which is humidified. -Oxygen flow should be 15L per minute for five minutes initially and then adjust the flow meter according to the orders.

29. THANK YOU