Oxygen therapy OUT LINE Definition of the oxygen therapy Types of oxygen therapy purposes of using the oxygen therapy Administration of oxygen therapy Complication of oxygen therapy LEARNING OBJECTIVES: Define the oxygen therapy Discuss the type of c oxygen therapy List the purpose of using the oxygen therapy Explain the procedure Demonstrate the procedure List Complication of oxygen therapy OXYGEN THERAPY Definition: Oxygen is a colorless, odorless, tasteless gas that is essential for the body to function properly and to survive. WHAT IS MEANING OF O2 THERAPY Oxygen therapy is the administration of oxygen at a concentration of pressure greater than that found in the environmental atmosphere The air that we breathe contain approximately 21% oxygen the heart relies on oxygen to pump blood. WHAT IS MEANING OF O2 THERAPY If not enough oxygen is circulating in the blood, it’s difficult for the tissues of the heart to keep pumping. Supplemental oxygen is used to treat medical conditions in which the tissues of the body do not have enough oxygen. PURPOSE The body is constantly taking in oxygen and releasing carbon dioxide. If this process is inadequate, oxygen levels in the blood decrease, and the patient may need supplemental oxygen. PURPOSE Oxygen therapy is a key treatment in respiratory care. The purpose is to increase oxygen saturation in tissues where the saturation levels are too low due to illness or injury. OXYGEN THERAPY IS USED TO TREAT Example in case : Documented hypoxemia Severe respiratory distress (acute asthma or pneumonia) Severe trauma Chronic obstructive pulmonary disease (COPD, including chronic bronchitis, emphysema, and chronic asthma) OXYGEN THERAPY IS USED TO TREAT Pulmonary hypertension Acute myocardial infarction (heart attack) Short-term therapy, such as postanesthesia recovery Oxygen may also be used to treat chronic lung disease patients during exercise . METHODS OF DISPENSING OXYGEN Piped in Cylinder Oxygen concentrator SOURCES OF OXYGEN: Cylinder. 2- Wall outlets. 1- Oxygen is moistened by passing it through a humidification system to prevent the mucous membranes of the respiratory tree from becoming dry. 1- USING OXYGEN CYLINDERS: The oxygen cylinder is delivered with a protective cap to prevent accidental force against the cylinder outlet. To release oxygen safety and at a desirable rate, a regulator is used. It consists of two parts. USING OXYGEN CYLINDERS: A reduction gauge that reduces the pressure to a working level and shows the amount of oxygen in the tank. a flow meter that regulates the control of oxygen in liters per minutes. 2- WALL – OUTLET OXYGEN: The oxygen is supplied from a central source through a pipeline. Only a flow meter and a humidifier are required. PREPARATION A physician's order is required for oxygen therapy, except in emergency use. Clinical observations. Oxygen supplemental is determined by inadequate oxygen saturation. indicated in Artial Blood Gas measurements,(ABGs ) . Pulse Oximetry. CAUTIONS FOR OXYGEN THERAPY Oxygen toxicity – can occur with FIO2 > 50% longer than 48 hrs Suppression of ventilation – will lead to increased CO2 and carbon dioxide narcosis Danger of fire Infection Methods of oxygen administration: CLASSIFICATION OF OXYGEN DELIVERY SYSTEMS Low flow systems contribute partially to inspired gas client breathes do not provide constant FIO2 Ex: nasal cannula, simple mask , non-re breather mask , Partial rebreather mask High flow systems deliver specific and constant percent of oxygen independent of client’s breathing Ex: Venturi mask,, trach collar, T-piece METHODS OF OXYGEN ADMINISTRATION: 1- Nasal cannula NASAL CANNULA (PRONGS): It is a disposable. plastic devise with two protruding prongs for insertion into the nostrils, connected to an oxygen source. Used for low-medium concentrations of Oxygen (24-44%). Method Nasal Cannula Amount Delivered F1o2 (Fraction Inspired Oxygen) Priority Nursing Interventions Check frequently Low flow that both 24-44 % prongs are in 1 L\min=24% clients nares 2 L\min=28% 3 L\min=32% Never 4 L\min=36% deliver more 5 L\min=40% than 2-3 L\min 6 L\min=44% to client with chronic lung disease Advantages Client able to talk and eat with oxygen in place Disadvantages may cause irritation to the nasal and pharyngeal mucosa Easily used if oxygen in home flow rates setting are above 6 liters/minute Variable FIO2 FACE MASK The simple Oxygen mask The partial rebreather mask: The non rebreather mask: The venturi mask: THE SIMPLE OXYGEN MASK Simple mask is made of clear, flexible , plastic or rubber that can be molded to fit the face. It is held to the head with elastic bands. Some have a metal clip that can be bent over the bridge of the nose for a comfortable fit. THE It SIMPLE OXYGEN MASK delivers 35% to 60% oxygen . A flow rate of 6 to 10 liters per minute. It has vents on its sides which allow room air to leak in at many places, thereby diluting the source oxygen. Often it is used when an increased delivery of oxygen is needed for short periods (i.e., less than 12 hours). Method Amount Delivered F1o2 (Fraction Inspired Oxygen) Simple mask Low Flow 6-10 L\min 35%-60% Priority Nursing Interventions Monitor client frequently to check placement of the mask. Support client if claustrophobia is concern Secure physician's order to replace mask with nasal cannula during meal time Advantages Can provide increased delivery of oxygen for short period of time Disadvantages Tight seal required to deliver higher concentration Difficult to keep mask in position over nose and mouth Potential for skin breakdown (pressure, moisture) Wasting Uncomfortable for pt while eating or talking Expensive with nasal tube THE PARTIAL REBREATHER MASK: The mask is have with a reservoir bag must romaine inflated during both inspiration & expiration It collection of the first parts of the patients' exhaled air. It is used to deliver oxygen concentrations up to 80%. THE PARTIAL REBREATHER MASK The oxygen flow rate must be maintained at a minimum of 6 L/min to ensure that the patient does not rebreathe large amounts of exhaled air. The remaining exhaled air exits through vents. THE NON REBREATHER MASK This mask provides the highest concentration of oxygen (95-100%) at a flow rate6-15 L/min. It is similar to the partial rebreather mask except two one-way valves prevent conservation of exhaled air. The bag is an oxygen reservoir THE NON REBREATHER MASK When the patient exhales air. the one-way valve closes and all of the expired air is deposited into the atmosphere, not the reservoir bag. In this way, the patient is not rebreathing any of the expired gas. Method Amount Delivered F1o2 (Fraction Inspired Oxygen) Priority Nursing Interventions Partial Rebreather Mask Low Flow Set flow rate so 6 L\min mask remains 75%-80% tow-thirds oxygen full during inspiration Keep reservoir bag free of twists or kinks Advantages Disadvantages Clinet can inhale room air through openings in mask if oxygens supply is briefly interrupted Requires tight seal (eating and talking difficult, uncomfort able Not as drying to mucous membrane s Method Amount Delivere d F1o2 Priority Nursing Interventions Non rebreather MASK Maintain flow rate so reservoir bag collapses only slightly during inspiration 80%100% Check that valves and rubber flaps are function properly (open during expiration ) Monitor SaO2 with pulse oximeter Low Flow 6-15 L \min Advantages Disadvantages Delivers the highest possible oxygen concentratio n Suitable for pt breathing spontaneous with sever hypoxemia Impractical for long term Therapy Malfunction can cause CO2 buildup suffocation Expensive Feeling of suffocation Uncomfortabl e Costly VENTURI MASK It is high flow concentration of oxygen. Oxygen from 40 - 50% At liters flow of 4 to 15 L/min. The mask is so constructed that there is a constant flow of room air blended with a fixed concentration of oxygen THE VENTURI MASK is designed with wide- bore tubing and various color - coded jet adapters. Each color code corresponds to a precise oxygen concentration and a specific liter flow. The venturi system, Room air dilutes the oxygen entering the tubing to a certain concentration The amount of air drawn in is determined by the size of the orifice (jet adapter). THE VENTURI MASK The narrower the jet adapter, the greater the air dilution, and the lower the concentration of oxygen. It is used primarily for patients with chronic obstructive pulmonary disease Method Amount Delivered F1o2 Venturi Mask Priority Nursing Interventio ns Advantage s Disadvantages Requires careful mointoring to verify of 4 to 15 F1O2 at flow rate L/min. ordered Check that air intake valves are not blocked Delivers most precise oxygen concentrati on Doesn’t dry mucous membrane s (humidity uncomfortable Risk for skin irritation produce respiratory depression in COPD patient with high oxygen concentration 50% Oxygen from 40-50% TRACHEOSTOMY COLLAR/ MASK Inserted directed into trachea Is indicated for chronic o2 therapy need O2 flow rate 8 to 10L Provides accurate FIO2 Provides good humidity. Comfortable ,more efficient Less expensive T-PIECE Used on end of ET tube when weaning from ventilator Provides accurate FIO2 Provides good humidity SIDE EFFECT & COMPLICATION OF OXYGEN THERAPY Oxygen toxicity Retrolental fibroplasia Absorption atelectasis OXYGEN TOXICITY It is a condition in which ventilator failure occurs due to inspiration of a high concentration of oxygen for aprolonged period of time. Oxygen concentration greater than 50% over 24 to 48 hours can cause pathological changes in the lungs. Signs and symptoms of oxygen toxicity: • Non-productive cough. • Nausea and vomiting. • Substernal chest pain. • Fatigue. • Nasal stuffiness. • Headache. • Sore throat. • Hypoventilation. . Nasal congestion. . Dyspnea. . Inspiration pain. SIDE EFFECT & COMPLICATION OF OXYGEN THERAPY Retrolental fibroplasia Blindness due to vasoconstriction & ischemia ( premature infants ) SIDE EFFECT & COMPLICATION OF OXYGEN THERAPY Absorption atelectasis 100 % FLO2 breathing associated with decrease ventilation ( obstruction ) Hypoventilation ( increase 30 /M ) Effect ( lung collapse ) Technique of oxygen administration A-Administering oxygen by nasal cannula: Steps Rational •Assessment: Check the physician order. Assesses physical condition Assess vital signs , Assess level of consciousness Assess the laboratory results, especially the ABG analyses, Assess risk of CO2retention with oxygen administration provide a baseline data for future assessment Oxygen maybe depress the hypoxia drive ( decrease respiratory rate , alliterate mental states *If Paco2 is decrease or normal ( PT not expression CO2 retention & can use oxygen without fear ASSESSMENT . Identify the type of oxygen equipment and oxygen source in your facility Steps Rational *Planning: Wash hands. To prevent Prepare equipment infection. Oxygen therapy plastic nasal cannula connection tube, Simple face mask The partial rebreather mask The non rebreather mask The venturi mask Steps Rational Humidifier filled with distilled water . Flow meter No smoking signs Humidification maybe not be ordered if the flow rate is <4 /l/min Steps Rational *Implementation: Identify the patient. To be sure you are performing the procedure for the correct patient. To gain his cooperation. Explain procedure to the patient. Assist the patient to a semi- This position permits fowler's position if possible. easier chest expansion and hence easier breathing. Attach the oxygen supply To prevent dehydration of tube with humidification to mucous membrane. the cannula , face mask. Steps Rational Allow 3-5 L oxygen to flow through the tubing. Low flow Place the prongs in the patient's nostrils and adjust it comfortably. To facilitate oxygen administration and comfort the patient. Use gauze pads both behind the head or the ears and under the chin and tighten to comfort. 1 L\min=24% 2 L\min=28% 3 L\min=32% 4 L\min=36% 5 L\min=40% 6 L\min=44% To reduce irritation and pressure and protect the skin. Steps Rational Adjust the flow rate to the ordered level. To provide optimal delivery of oxygen to patient.. Encourage patient to breath through his nose with his mouth closed. Assess the patient nose and Oxygen dries the mucous mouth and provide oronasal care membrane and cause at least every 8 hours. irritation Steps Rational face mask Ensure pt Produce the flow rate ( 10 receive flow -12 l/min ) sufficient to meet Attach the oxygen supply tube aspiratory to the mask . demand & Regulate the oxygen flow. maintain Position the mask over the accurate patient's nose and mouth. concentration And fit it securely, shaping the oxygen metal band on the mask to the bridge of the nose. Steps Adjust the elastic band around the patient's head and tighten. Rational To ensure a tight fit. Use gauze pads both behind the head or the ears. To reduce irritation and pressure and protect the skin. Adjust the flow rate to the ordered level. Steps Rational Remove the mask There is danger of and dry the skin every inhaling powder if it is 2-3 hours if the oxygen placed on the mask. is running continuously. Don't powder around the mask. Wash your hands. Steps The partial rebreather mask The non rebreather mask The venturi mask Attach tubing to flow meter Show the mask to pt & explain procedure Turn on oxygen flowmeter & prescribed rate ( usually indicated on mask ) Place mask over pt nose & mouth under chin Rational to ensure correct air / oxygen mix EVALUATION: Breathing pattern regular and at normal rate. pink color in nail beds, lips, conjunctiva of eyes. No confusion, disorientation, difficulty with cognition. Arterial oxygen concentration or hemoglobin Oxygen saturation within normal limits. DOCUMENTATION: Date and time oxygen started. Method of delivery. Oxygen concentration and flow rate. Patient observation. Add oronasal care to the nursing care plan O2 DELIVERY DEVICES CONT. EQUIPMENT FLOW FIO2 12 -15 L/M 1.0 ANESTHESIA BAG *** SHOWS THAT FIO2 VARIES WITH DIFFERENT F, VT, INSPIRATORY FLOW RATES. SPECIAL NOTES USE AT 12 L/M MIN. POTENTIAL OF BAROTRAUMA OR ASPHYXIATION O2 DELIVERY DEVICES CONT. EQUIPMENT FLOW FIO2 .24 - 44*** SPECIAL NOTES NASAL CANNULA 1/2 - 6 L/M SIMPLE O2 MASK (WITHOUT BAG) 6 - 10 L/M .35 - 55*** USE 5 L/M MINIMUM RESERVOIR MASK (MASK WITH BAG) 10-15 L/M .60 -80*** VENTI MASK 3 L/M 6 L/M .24, 26, 31, .35, .40, .50 PAGE RT IF USED (BAG TO NOT COLLAPSE) READ ENCLOSED INSTRUCTIONS NEBULIZER 8 L/M OR > .28, .30, .35 .40, .50, 70 1.0*** 1.0 12 -15 L/M ANESTHESIA BAG *** SHOWS THAT FIO2 VARIES WITH DIFFERENT F, VT, INSPIRATORY FLOW RATES. 6 L/M MAX. MIST MUST BE VISIBLE USE AT 12 L/M MIN. POTENTIAL OF BAROTRAUMA OR ASPHYXIATION
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