Unlocking airway management skills ….

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Presentation transcript:

Unlocking airway management skills …. …the key to patient survival. Kansas Airway Supplement

Respiratory Anatomy Nose and mouth (warms, moistens, and filters air). Pharynx Oropharynx Nasopharynx Epiglottis Trachea (windpipe) Kansas Airway Supplement Kansas BEMS EMS Educator Task Force

Upper Airway Epiglottis Tongue Glottis Kansas Airway Supplement Kansas BEMS EMS Educator Task Force

Respiratory Anatomy Cricoid cartilage Larynx (voice box). Bronchi Lungs Visceral pleura (surface of lungs) Parietal pleura (internal chest wall) Interpleural space (potential space) Kansas Airway Supplement Kansas BEMS EMS Educator Task Force

Lower Airway Kansas Airway Supplement Kansas BEMS EMS Educator Task Force

Respiratory Anatomy Diaphragm Inhalation (active process) Diaphragm and intercostal muscles contract, increasing the size of the thoracic cavity. Diaphragm moves slightly downward, ribs move upward and outward. The negative pressure in the chest cavity causes air flow into the lungs. Kansas Airway Supplement Kansas BEMS EMS Educator Task Force

Respiratory Anatomy Exhalation (passive process) Diaphragm and intercostal muscles relax decreasing the size of the thoracic cavity. Diaphragm moves upward, ribs move downward and inward. The positive pressure inside the chest cavity causes air flow out of the lungs. Kansas Airway Supplement Kansas BEMS EMS Educator Task Force

Anatomical sources of ventilation problems Upper airway Lower airway Head/neck-Brain Spinal cord Chest wall Kansas Airway Supplement Kansas BEMS EMS Educator Task Force

Respiratory Physiology Oxygenation - blood and the cells become saturated with oxygen Hypoxia - inadequate oxygen levels in the blood Signs of Hypoxia Increased or decreased heart rate Altered mental status (early sign) Agitation Initial elevation of B.P. followed by a decrease Cyanosis (often a late sign) Kansas Airway Supplement Kansas BEMS EMS Educator Task Force

Alveolar Gas Exchange Oxygen-rich air enters the alveoli during each inspiration. Oxygen enters the blood in the capillaries as carbon dioxide enters the alveoli for exhalation. Kansas Airway Supplement Kansas BEMS EMS Educator Task Force

Infant and Child Considerations Mouth and nose - generally all structures are smaller and more easily obstructed than in adults. Pharynx - infant’s and children’s tongues take up proportionally more space in the mouth than adults. Trachea - (windpipe) Infants and children have narrower tracheas that are obstructed more easily by swelling. Trachea is softer and more flexible in infants and children. Kansas Airway Supplement Kansas BEMS EMS Educator Task Force

Infant and Child Considerations Cricoid cartilage - like other cartilage in the infant and child, the cricoid cartilage is less developed and less rigid. It is the narrowest part of the infant’s or child’s airway. Diaphragm - chest wall is softer, infants and children tend to depend more heavily on the diaphragm for breathing. Kansas Airway Supplement Kansas BEMS EMS Educator Task Force

Opening the Mouth Crossed-finger technique Inspect the mouth Vomit Blood Secretions Foreign bodies Be extremely cautious Fingers Gag or vomit Kansas Airway Supplement Kansas BEMS EMS Educator Task Force

Opening the Airway Head-tilt, chin lift maneuver Jaw thrust maneuver Adults vs.. Infants and Children Jaw thrust maneuver Kansas Airway Supplement Kansas BEMS EMS Educator Task Force

Techniques of Suctioning BSI precautions Purpose Remove blood, other liquids, and food particles from the airway Some suction units are inadequate for removing solid objects like teeth, foreign bodies, and food A patient needs to be suctioned immediately when a gurgling sound is heard with artificial ventilation Kansas Airway Supplement Kansas BEMS EMS Educator Task Force

Types of Suction Units Mounted Suction Devices Fixed on-board the ambulance 300mmHg pull on gauge when tubing is clamped Should be adjustable for infants and children Kansas Airway Supplement Kansas BEMS EMS Educator Task Force

Portable Suction Devices Electric - battery powered Oxygen - powered Hand - powered Each device must have Wide-bore, thick walled, non-kink tubing Plastic collection bottle, supply of water Enough vacuum to clear the throat Kansas Airway Supplement Kansas BEMS EMS Educator Task Force

Suction Catheters Hard or rigid catheter (Yankaeur) Tonsil tip Used to suction mouth and oropharynx Inserted a limited depth Use caution on infants and children Soft tissue damage Kansas Airway Supplement Kansas BEMS EMS Educator Task Force

Suction Catheters Soft catheter (French catheter) Used to suction mouth or nose and nasopharynx Measured from tip of the nose to the tip of the ear. Not inserted beyond the base of the tongue Kansas Airway Supplement Kansas BEMS EMS Educator Task Force

Techniques of Suctioning Best positioned at patient’s head Turn on the suction unit Select catheter Measure and insert without suction if possible Suction from side to side Adults no more than 15 seconds Infants & children - less than 15 seconds Rinse catheter with water if necessary Kansas Airway Supplement Kansas BEMS EMS Educator Task Force

Special Considerations Secretions that cannot be removed log roll and finger sweep Patient producing frothy secretions as rapidly as suctioning can remove them Suction 15 seconds Positive pressure with supplemental oxygen for 2 minutes then suction again and repeat the process Residual air removed from lungs, monitor pulse and heart rate Kansas Airway Supplement Kansas BEMS EMS Educator Task Force

Suction The importance of readiness can not be overstated. Kansas Airway Supplement Kansas BEMS EMS Educator Task Force

Study of suction equipment utilization. Prehosp Emerg Care 1997 Apr-Jun;1(2):91-5 Kozak RJ, Ginther BE, Bean WS. Kansas Airway Supplement Kansas BEMS EMS Educator Task Force

Fifty-one paramedics serving a Level I urban trauma center were anonymously surveyed . Prehosp Emerg Care 1997 Apr-Jun;1(2):91-5 Kozak RJ, Ginther BE, Bean WS. Kansas Airway Supplement Kansas BEMS EMS Educator Task Force

Study of suction equipment utilization. The paramedics reported: carrying suction equipment to the scene of medical aid calls less than 25% of the time. Prehosp Emerg Care 1997 Apr-Jun;1(2):91-5 Kozak RJ, Ginther BE, Bean WS. Kansas Airway Supplement Kansas BEMS EMS Educator Task Force

Study of suction equipment utilization. The paramedics reported: carrying suction equipment to the scene of medical aid calls less than 25% of the time. suction equipment is utilized during 50% of advanced airway procedures. Prehosp Emerg Care 1997 Apr-Jun;1(2):91-5 Kozak RJ, Ginther BE, Bean WS. Kansas Airway Supplement Kansas BEMS EMS Educator Task Force

Study of suction equipment utilization. The paramedics reported: carrying suction equipment to the scene of medical aid calls less than 25% of the time. suction equipment is utilized during 50% of advanced airway procedures. Half of the paramedics reported complications affecting patient care at least once during their careers due to equipment malfunction. Prehosp Emerg Care 1997 Apr-Jun;1(2):91-5 Kozak RJ, Ginther BE, Bean WS. Kansas Airway Supplement Kansas BEMS EMS Educator Task Force

Study of suction equipment utilization. The paramedics reported: carrying suction equipment to the scene of medical aid calls less than 25% of the time. suction equipment is utilized during 50% of advanced airway procedures. Half of the paramedics reported complications affecting patient care at least once during their careers due to equipment malfunction. Ninety-eight percent of the paramedics reported having some type of training with the suction equipment for prehospital advanced airway procedures. Prehosp Emerg Care 1997 Apr-Jun;1(2):91-5 Kozak RJ, Ginther BE, Bean WS. Kansas Airway Supplement Kansas BEMS EMS Educator Task Force

Suction - Key Points Reminder of BSI Suctions are limited in what they remove Immediate action is needed Have a secondary device Kansas Airway Supplement Kansas BEMS EMS Educator Task Force

Oropharyngeal Airway (OPA) Used to maintain a patent airway only on deeply unresponsive patients No gag reflex Designed to allow suctioning while in place Must have the proper size If patient becomes responsive and starts to fight the OPA remove it... Kansas Airway Supplement Kansas BEMS EMS Educator Task Force

Inserting the OPA Select the proper size (corner of the mouth to tip of the ear) Open the patient’s mouth Insert the OPA with the tip facing the roof of the mouth Advance while rotating 180° Continue until flange rests on the teeth Infants and children insertion Kansas Airway Supplement Kansas BEMS EMS Educator Task Force

Nasopharyngeal Airway (NPA) Nose hose, nasal trumpet Used on patients who are unable to tolerate an OPA or is not fully responsive Do not use on suspected basilar skull fracture Still need to maintain head-tilt chin lift or jaw thrust when inserted Must select the proper size Made to go into right nare or nostril Kansas Airway Supplement Kansas BEMS EMS Educator Task Force

Inserting the NPA Select the proper size in length and diameter Lubricate Insert into right nostril with bevel always toward the septum Continue inserting until flange rests against the nostril Insertion into left nostril Kansas Airway Supplement Kansas BEMS EMS Educator Task Force

Assessment of Breathing After establishing an airway your next step should be to assess breathing Look Breathing pattern regular or irregular Nasal flaring Adequate expansion, retractions Kansas Airway Supplement Kansas BEMS EMS Educator Task Force

Assessment of Breathing Listen Shortness of breath when speaking Unresponsive place ear next to patients mouth Is there any movement of air? Kansas Airway Supplement Kansas BEMS EMS Educator Task Force

Assessment of Breathing Feel Check the volume of breathing by placing you ear and cheek next to the patient’s mouth Kansas Airway Supplement Kansas BEMS EMS Educator Task Force

Assessment of Breathing Auscultate Stethoscope Mid clavicular about the second intercostal space and the fourth or fifth anterior midaxillary line or next to sternum Check both sides Present and equal bilaterally Diminished or absent Kansas Airway Supplement Kansas BEMS EMS Educator Task Force

Adequate Breathing Normal rate Rhythm Adult 12 - 20/min Child 15 - 30/min Infant 25 - 50/min Rhythm Regular Irregular Kansas Airway Supplement Kansas BEMS EMS Educator Task Force

Ventilation Volume Tidal volume-air inspired in each breath Minute volume-tidal volume multiplied by the respiratory rate Kansas Airway Supplement Kansas BEMS EMS Educator Task Force

Adequate Breathing Quality Depth (tidal volume) Breath sounds present and equal Chest expansion adequate and equal Effort of breathing use of accessory muscles predominately in infants and children Depth (tidal volume) Adequate chest rise and fall Full breath sounds heard Kansas Airway Supplement Kansas BEMS EMS Educator Task Force

Inadequate Breathing Rate Rhythm Outside the normal limits Tachypnea (rapid breathing) >20 Badypnea (slow breathing) <12 Rhythm Irregular breathing pattern Kansas Airway Supplement Kansas BEMS EMS Educator Task Force

Inadequate Breathing Quality Depth Breath sounds diminished, noisy or absent Excessive use of accessory muscles, retractions Reduced air flow at nose/mouth Inadequate chest expansion Nostril flaring (infants & children) Depth Shallow (impaired depth) breathing Agonal respirations - occasional gasping respirations Kansas Airway Supplement Kansas BEMS EMS Educator Task Force

Inadequate Breathing Skin Color Retractions “Seesaw” breathing (abd & chest move in opposite directions) Any of these signs is by itself may be reason to ventilate a patient without delay Kansas Airway Supplement Kansas BEMS EMS Educator Task Force

Positive Pressure ventilation The practice of artificially ventilating, or forcing air into a patient who is breathing inadequately or not breathing at all Kansas Airway Supplement Kansas BEMS EMS Educator Task Force

Techniques of Artificial Ventilation In order of preference Mouth to mask Two-person bag-valve-mask Flow-restricted oxygen-powered ventilation device One-person bag-valve-mask Kansas Airway Supplement Kansas BEMS EMS Educator Task Force

Considerations When Using Artificial Ventilation Maintain a good mask seal Device must deliver adequate volume of air to sufficiently inflate the lungs Supplemental oxygen must be used Kansas Airway Supplement Kansas BEMS EMS Educator Task Force

Adequate Artificial Ventilations Chest rises and falls with each ventilation Rate of ventilations are sufficient Heart rate returns to normal Color improves Kansas Airway Supplement Kansas BEMS EMS Educator Task Force

Inadequate Artificial Ventilations Chest does not rise and fall Ventilation rate is too fast or slow Heart rate does not return to normal Color is not improved Kansas Airway Supplement Kansas BEMS EMS Educator Task Force

Mouth-to-Mouth Ventilation Air we breath contains 21% oxygen 5% used by the body 16% is exhaled Danger of infectious disease Kansas Airway Supplement Kansas BEMS EMS Educator Task Force

Mouth-to-Mask Eliminates direct contact with patient One-way valve system Can provide adequate or greater volume than a BVM Oxygen port (should be connected to 15 lpm) Kansas Airway Supplement Kansas BEMS EMS Educator Task Force

Bag-Valve-Mask (BVM) EMT-B can feel the lung compliance Consists of self-inflating bag, one-way valve, face mask, intake/oxygen reservoir valve, and an oxygen reservoir. By adding oxygen and a reservoir close to 100% oxygen can be delivered to the patient When using a BVM an OPA/NPA should be used if possible Kansas Airway Supplement Kansas BEMS EMS Educator Task Force

Bag-Valve-Mask Cont... Volume of approximately 1,600 milliliters Provides less volume than mouth-to-mask Single EMT may have trouble maintaining seal Two EMT’s more effective Pop-off valve must be disabled Available in infant, child, and adult sizes Kansas Airway Supplement Kansas BEMS EMS Educator Task Force

Bag-Valve-Mask Cont... Breaths should be 1.5 to 2 seconds Guard against overinflation Monitor the seal Bring the jaw to the mask Kansas Airway Supplement Kansas BEMS EMS Educator Task Force

Bag-Valve-Mask Cont... Assisted ventilations for hyper or hypoventilating patients Explain procedure Place the mask Squeeze bag on inhalation Over next 5 to 10 breaths slowly adjust rate and tidal volume to desired rate and volume Kansas Airway Supplement Kansas BEMS EMS Educator Task Force

Sellick Maneuver Kansas Airway Supplement Kansas BEMS EMS Educator Task Force

Sellick Maneuver Kansas Airway Supplement Kansas BEMS EMS Educator Task Force

Mask ventilation will be made difficult by: poor mask seal -- beards facial burns facial scarring/cuts facial dressings edentulous patients any evidence of airway obstruction neck instability penetrating neck trauma repeated failed direct laryngoscopy obesity/bull neck Kansas Airway Supplement Kansas BEMS EMS Educator Task Force

Other ventilation techniques will be made difficult by: lack of knowledge and experience lower airway obstruction neck instability penetrating neck injury Kansas Airway Supplement Kansas BEMS EMS Educator Task Force

Flow-Restricted, Oxygen-Powered Ventilation Device Known as a demand-valve device Can be operated by patient or EMT Unable to feel lung compliance With proper seal will deliver 100% oxygen Designed for use on adult patients Gastric distension Rupture of the lungs A trigger positioned to allow EMT to keep both hands on the mask Kansas Airway Supplement Kansas BEMS EMS Educator Task Force

Automatic Transport Ventilators Deliver 100% oxygen Provide and maintain a constant rate and tidal volume during ventilation Advantages Frees both hands Rate, & tidal volume can be set Alarm for low oxygen tank Disadvantages Oxygen powered not used in children under 5 Cannot feel increase in airway resistance Kansas Airway Supplement Kansas BEMS EMS Educator Task Force

Oxygen Therapy Oxygen is a drug that can be given by the EMT-B “Generally speaking”, a patient who is breathing less than 12 and more than 24 times a minute needs oxygen Kansas Airway Supplement Kansas BEMS EMS Educator Task Force

Oxygen Dangers Oxygen supports combustion, (it is not flammable) Avoid contact with petroleum products Smoking Handle carefully since contents are under pressure Kansas Airway Supplement Kansas BEMS EMS Educator Task Force

Oxygen Cylinders All of the cylinders when full are the same pressure of 2,000 psi. Usually green or aluminum grey D cylinder - 350 liters E cylinders - 625 liters M cylinders - 3,000 liters G cylinders - 5,300 liters H cylinders - 6,900 liters Kansas Airway Supplement Kansas BEMS EMS Educator Task Force

High-Pressure Regulator Provides 50 psi to an oxygen-powered, ventilation device. Flow rate cannot be controlled Kansas Airway Supplement Kansas BEMS EMS Educator Task Force

Low Pressure/Therapy Regulator Permit oxygen delivery to the patient at a desired rate in liters per minute Flow rate can go from 1 to 25 liters/min. Kansas Airway Supplement Kansas BEMS EMS Educator Task Force

Oxygen Humidifiers Dry oxygen is not harmful in the short term Generally not needed in prehospital care Transport time of an hour or more humidifier should be considered Kansas Airway Supplement Kansas BEMS EMS Educator Task Force

Changing Oxygen Bottle Check cylinder for oxygen remove protective seal Quickly open and shut tank to remove debris Place regulator over yoke and and align pins. Make sure new O ring is in place Hand tighten the T screw Open to check for leaks Kansas Airway Supplement Kansas BEMS EMS Educator Task Force

Nonrebreather Mask Preferred method of giving oxygen to prehospital patients Up to 90% oxygen can be delivered Bag should be filled before placing on patient Flow rate should be adjusted to 15 liters/min. Patients who are cyanotic, cool, clammy or short of breath need oxygen Concerns of too much oxygen Different size masks Kansas Airway Supplement Kansas BEMS EMS Educator Task Force

Nasal Cannula Provides limited oxygen concentration Used when patients cannot tolerate mask Prongs and other uses Concentration of 24 to 44% Flow rate set between 1 to 6 liters For every liter per minute of flow delivered, the oxygen concentration the patient inhales increases by 4% Kansas Airway Supplement Kansas BEMS EMS Educator Task Force

Nasal Cannula Flow Rates 1 liters/min. =24% 2 liters/min. = 28% 3 liters/min. = 32% 4 liters/min. = 36% 5 liters/min. = 40% 6 liters/min. = 44% Kansas Airway Supplement Kansas BEMS EMS Educator Task Force

Simple Face Mask No reservoir Can deliver up to 60% concentration Rate 6 to 10 liters/min. Not recommended for prehospital use Kansas Airway Supplement Kansas BEMS EMS Educator Task Force

Partial Rebreather Mask Similar to nonrebreather except it has a two-way valve allowing patient to rebreath his exhaled air. Flow rate 6 to 10 liters/min. Oxygen concentration between 35 to 60% Kansas Airway Supplement Kansas BEMS EMS Educator Task Force

Venturi Mask Provides precise concentrations of oxygen Entrainment valve to adjust oxygen delivery Mostly used in the hospital setting for COPD patients Kansas Airway Supplement Kansas BEMS EMS Educator Task Force

Kansas Airway Supplement Special Situations Kansas Airway Supplement

Inhaler Therapy History Medical Direction Review of specific bronchodilator medication Kansas Airway Supplement Kansas BEMS EMS Educator Task Force

Laryngectomies (Stomas) A breathing tube may be present If obstructed, suction it Some patients may have partial laryngectomies Be sure to close the mouth and nose to prevent air escaping Kansas Airway Supplement Kansas BEMS EMS Educator Task Force

Infants and Child Patients Neutral position infant Just a little past neutral for child Avoid hyperextension of head Avoid excessive BVM pressure Gastric distension more common in children Oral or nasal airway may be considered when other procedures fail to clear the airway Kansas Airway Supplement Kansas BEMS EMS Educator Task Force

Obstruction Anything (food, blood, swollen tissue, vomit) that blocks the airway will cause some level of decrease of available oxygen to the body. Kansas Airway Supplement Kansas BEMS EMS Educator Task Force

Kansas Airway Supplement Kansas BEMS EMS Educator Task Force

Obstruction The size of obstruction affects the available air exchange. For example, snoring will reduce air Exchange while a food bolus can actually stop air exchange. Kansas Airway Supplement Kansas BEMS EMS Educator Task Force

Kansas Airway Supplement Kansas BEMS EMS Educator Task Force

Obstruction When obstruction persists, repeat FBAO procedures three times and transport as soon as possible. Kansas Airway Supplement Kansas BEMS EMS Educator Task Force

Facial Injuries Rich blood supply to the face Blunt injuries and burns to the face result in severe swelling Bleeding into the airway can be a challenge to manage Kansas Airway Supplement Kansas BEMS EMS Educator Task Force

Jaw Thrust Kansas Airway Supplement Kansas BEMS EMS Educator Task Force

Dental Appliances Dentures ordinarily should be left in place Partial dentures (plates) may become dislodged during an emergency Leave in place, but be prepared to remove it if it becomes dislodged Kansas Airway Supplement Kansas BEMS EMS Educator Task Force