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CMC System CE EMS Equipment; EKG Rhythms; 12 Lead EKG’s Condell Medical Center EMS System July 2008 Site code #10-7200E1208 Prepared by: Sharon Hopkins, RN, BSN, EMT-P Objectives Upon successful completion of this module, the EMS provider should be able to: maintain familiarity with equipment used in delivering patient care C-collar, KED, HARE, IO, Quicktrach, ETT, ETCO2, and EDD review a variety of EKG rhythms and treatment based on Region X SOP’s review and participate in discussion of case presentations successfully complete the quiz with a score of 80% or better Immobilization With Cervical Collars Indication To be used when a spinal insult/injury has been suspected based on mechanism of injury, history, or signs and symptoms Complaints of pain to the neck, numbness or tingling of any of the extremities or parts of the extremities no matter how small the area Traumatic Injury above the level of the clavicles such as soft tissue damage to the head, face, or neck from trauma Altered level of consciousness where injury or complaint cannot be ruled out Region X SOP In-Field Spinal Clearance A reliable patient without signs/symptoms of neck/spine injury and negative mechanism of injury does not require full spinal immobilization WHEN IN DOUBT, FULLY IMMOBILIZE THE PATIENT In-Field Spinal Clearance Mechanism of injury High velocity MVC > 40mph Unrestrained occupant in MVC Passenger compartment intrusion > 12 inches Ejection from vehicle Rollover MVC Motorcycle collision >20 mph Death in same vehicle Pedestrian struck by vehicle Falls > 2 times patient height Diving injury In-Field Spinal Clearance Signs and symptoms Pain in neck or spine Tenderness / deformity of neck or spine upon palpation Paralysis or abnormal motor exam Paresthesia (tingling) in extremities Abnormal response to painful stimuli In-Field Spinal Clearance Patient reliability Signs of intoxication Abnormal mental status Communications difficulty Abnormal stress reaction Includes persons upset at scene of incident IF YOU DO NOT HAVE THE PROPER SIZED COLLAR, IT IS BETER TO USE A TOWEL ROLL AND TAPE TO IMMOBILIZE THE PATIENT Before application of the cervical collar, make sure the initial assessment has been completed and life-threatening problems have been addressed. You may need to continue manual c-spine control for the unruly, uncooperative patient; document your additional efforts Fit of the C-collar The front height of the collar should fit between the point of the chin and the chest at the suprasternal notch (where the clavicles and sternum meet) The collar should rest on the clavicles and support the lower jaw The collar should not stretch the neck (too high), not support the chin (too short), and not constrict the neck (too tight) Patient Positioning Keep the patient’s head in the in-line anatomical position during manual stabilization and application of the collar A neutral position with the head facing front, not tilted forward or back or turned to either side Measuring For The C-Collar The provider to place their fingers horizontal and measure from the top of the patient’s shoulder (at the crease of the neck) to a line visually drawn at the bottom of the patient’s chin Keep your fingers horizontal, not angling downward with the patient’s neck The collar will be one size too short if the fingers are slanted in measurement Measuring for the C-Collar Place your fingers along the plastic side of the c-collar to the closest hole opening Adjust the collar into place and snap the locks into place The collar is readjustable if the sizing is not correct Hint: directions are printed on the side of the collar for quick reference Measurement markings Neck opening to grasp to secure Velcro strap Applying the C-Collar Preform the collar by rolling the collar Position the chin into the collar bottom The 2nd rescuer applying the collar should stand at the side of the patient to wrap their fingers into the neck opening and firmly grasp the Velcro collar strap Avoid any torque movement and secure the strap into place with Velcro Visually inspect the placement of the collar for appropriateness of application Secure the patient to the backboard before stopping manual stabilization of the c-spine A Perfect Fit Consider the facts: In a room of 12-15 EMS providers, on average, only 1 person would wear a no-neck sized collar If the majority of your patients are being sized as a no-neck for the collar, then you are not measuring them correctly and you are not providing adequate care for your patient KED Device Indications To allow immobilization of the patient when moving them from a sitting position to the long backboard and when there is time to apply the device Remember – it takes a lot of time to apply the KED device Do you have the time to do it right or do you need rapid extrication? KED Device KED Device Manually secure the c-spine with the head in the neutral, in-line position Assess the patient’s distal pulse, motor function, and sensation (PMS) To be assessed before and after immobilization Apply the appropriately sized cervical collar and continue to maintain manual immobilization KED cont’d Position device behind the patient Secure the device to the patient’s torso The top of the device should fit snuggly into the armpit Pad behind the patient’s head as needed and secure the patient’s head to the KED One Velcro strap to secure the forehead One strap under the chin and attached to the KED – watch for pressure on the fleshy neck KED cont’d Evaluate and adjust all straps Straps are to be tight enough to prevent up/down or lateral movement but not so tight to restrict breathing Straps should not be pinching any flesh in the groin Secure patient’s wrists and ankles as needed when moving the patient onto the backboard Reassess distal PMS in extremities before and then again after moving patient HARE Traction Indications To immobilize an injured leg when there is swelling, pain, and or deformity to the mid-thigh suggesting fracture of the femur in the absence of injury to the lower leg or of joint injury HARE Traction With a fractured femur, the powerful thigh muscles can go into spasm causing extreme pain for the patient The traction reduces the incidence of thigh muscle spasms reducing the pain level for the patient and preventing further internal trauma from sharp, ragged bone ends Pain Management SOP Orthopedic injuries can be very painful. When indicated and the patient condition is satisfied (ie: B/P remains > 100mmHg) Morphine 2 mg IVP slowly over 2 minutes May repeat 2 mg IVP every 2 minutes up to a max of 10mg Observe & document the patient’s response to the intervention and monitor the blood pressure and for respiratory depression HARE Traction Application Manually stabilize the injured leg Assess PMS - distal pulses, motor function (“can you wiggle your toes?”), and sensation (“can you feel me touching your toe? Which toe?”) Apply and maintain manual traction Usual amount of traction is when the patient reports relief of muscle spasms HARE cont’d Measure for the correct length of the splint Place the splint alongside the non-injured leg Make adjustments to the overall length The ischial padded ring to fit from the ishial tuberosity (from the bottom of the buttocks) and extended past the foot with enough room to apply traction with the ankle strap Set the device under the patient’s injured leg Apply the ischial strap (proximal strap) Apply the distal ankle hitch Apply mechanical traction and let go of manual traction when the mechanical traction takes over HARE cont’d Position and secure the remaining straps Avoid placing any straps over the injured area and the knee Reassess distal PMS Secure the patient to the backboard Verify that enough of the backboard protrudes off the cot to be able to continue to support the distal end of the HARE traction HARE Traction Secured In Place FAQ’s - Intraosseous Needle Does the IO replace the IV? IO access is not a replacement for routine IV therapy; IO is an appropriate option when IV access is not possible and IV access is necessary Is there any limitation to fluids or medications that can be infused via the IO? Any fluid or medication that can be infused via IVP may be infused via IO FAQ’s - Intraosseous Needle What are the advantages to IO access over IV? IO vessels don’t collapse in shock IO access is quicker than IV in shock or trauma IO requires minimal training and skill IO access has a low complication rate (<1%) Any medications that can be given IVP can be given via IO Blood work can be drawn from the IO needle FAQ’s - Intraosseous Needle How long does it take the hole in the bone to heal after removal of the IO needle? Complete healing can take up to several days. Sufficient healing where another IO needle can be placed is usually considered 24 hours but at 24 hours there is still risk of extravasation (leakage) of fluid from the 1st site (FYI: Region X SOP requests no repeat IO needle in the same site for 48 hours) Is the bone weaker after being drilled? No; the catheter size is 15 G (adult and pediatrics) and is considered a small hole in comparison to the bony framework FAQ’s - Intraosseous Needle What flow rates can I expect via the IO route? The flow rates will vary patient to patient. Flow rates to date have varied from 20 ml/hour (rarely) to as high as 6000ml/hour. Flow rates depend on anatomical site used, adequacy of initial flushing, pressure used on infusion bag, and type of medication or fluid being infused. FAQ’s - Intraosseous Needle What are the requirements for optimal flow rates? The IO space needs to be flushed under high pressure with a syringe (connected to the primed extension tubing). Thick marrow occupies medullary space and can inhibit free flowing fluids. You need to have a pressure bag at a minimum of 300 mmHg (or B/P cuff (hand pressure in the absence of anything else but may not be enough pressure alone)) on the infusion bag for continuous flow. Gravity alone will rarely generate adequate flow rates. FAQ’s - Intraosseous Needle Do I need to flush with saline after drugs are given? Yes, to make sure all of the medication has entered the vascular space. There is approximately 1 ml of dead space in the IO site that needs to be flushed. FAQ’s - Intraosseous Needle When I push drugs via the IO, how fast does it take for the drug to reach the heart? In cardiac arrest, drugs given via the tibial site will reach the heart within 51 seconds. In a normal circulating animal study, the drug reached the heart in 4 seconds. FAQ’s - Intraosseous Needle Do I need to clean the site differently for an IV versus an IO insertion? No, the same skin preparation is sufficient for both devices and the usual aseptic technique is required for both. FAQ’s - Intraosseous Needle How much pain is there to place the IO needle? IO insertion is no more painful than a large bore peripheral IV stick. Conscious patients report significant pain after infusion of fluids or medication have been started – this is from an extensive network of nerve fibers in the medullary cavity. If the EMS patient is restless related to pain at the site, contact Medical Control FAQ’s - Intraosseous Needle Can I use the adult IO needle in the pediatric patient? The adult EZ IO needle is to be used for all patients weighing more than 39 kg (88 pounds per Region X SOP). At times there may be a significant amount of tissue over the site that the longer adult needle may be required. During insertion, when the tip of the needle is just touching the outer surface of the bone, you need to be able to observe the proximal hash mark on the needle shaft. Then you will know there is enough needle length to insert. EZ IO Needle FAQ’s - Intraosseous Needle Can anyone insert an IO needle? This device can only be used by the order of a licensed physician. Our protocols allow for the EMT-P to insert the device because they work under the license of the medical director. Our system requires the EMT-P to receive training on the use of the device and to return demonstrate insertion of the device before being allowed to use the device in the field. FAQ’s - Intraosseous Needle What are my resources if I need further information on the EZ IO device? Contact your Medical Officer, a system EMS coordinator, the company 24/7 at toll free 1-800-680-4911 The Vidacare company provides website training (www.vidacare.com “Training and Education”) Quicktrach Indications To establish an airway when conventional methods to ventilate the patient have failed Contraindications Tracheal transection (trachea cut in half) Children less than 3 years of age (per manufacturer) When an alternative and less invasive maneuver allows ventilation Quicktrach syringe hub of catheter neck strap stopper Quicktrach Packaging Box Label the outside of your white packaging box – they look the same for the 2 mm size pediatric box and 4mm size adult box The needles look very similar except for length Quicktrach Procedure Adults >100 pounds use the 4.0 mm ID and pediatrics <100 pounds use the 2.0 mm ID device Place the patient supine with head slightly extended if no cervical spine trauma is suspected Locate the cricothyroid membrane Membrane is midline between the thyroid cartilage (Adam’s apple) and cricoid cartilage below the Adam’s apple Cleanse the overlying skin Quicktrach Procedure cont’d Puncture the cricothyroid membrane at a 90 degree angle Confirm entry of the needle in the trachea by aspirating air thru the syringe Change the angle of insertion to 60 degrees Slide the catheter sheath forward to the level of the stopper Remove the stopper Note: the stopper is a very tight fit and may need to be wiggled to be removed Advance the plastic cannula as you remove the needle and syringe Insertion of Quicktrach Quicktrach Procedure cont’d As soon as the needle and syringe are removed, begin to ventilate the patient Then secure the catheter in place using the strap provided Helpful to secure one side of the strap in place before beginning the procedure Once secured, the hub of the catheter should be snug against the neck Confirm placement Auscultation, bilateral chest rise and fall Advanced Airway Devices Endotracheal tube (ETT) Used when the airway needs to be protected as in a patient with an altered level of consciousness (such as stroke, overdose, trauma) or the patient needs to be ventilated (such as respiratory or cardiac arrest) ETT in place Sellick’s Maneuver – Cricoid Pressure Gentle pressure applied on the anterior cricoid cartilage Closes the esophageal opening Helps prevent regurgitation and reduces gastric distention Can help “drop” the larynx to facilitate visualizing the vocal cord opening Use the thumb and index finger and apply pressure posteriorly (backward) to the anterior and lateral aspects of cricoid cartilage Sellick’s Maneuver – Cricoid Pressure Once pressure is applied, pressure cannot be removed until an ETT is placed and the cuff is inflated Confirming Initial Placement ETT Direct visualization Watch the tube pass thru the vocal cords 5 point auscultation Listen over the epigastric area You should not hear anything Listen to the right and left chest wall Listen upper chest walls under the clavicles Listen lateral chest walls midaxillary line Observe for chest rise and fall ETCO2 – yellow color after 6 breaths EDD if used– no resistance to withdrawing air ETCO2 Measurement Measures for the presence of end tidal (end of breath) CO2 exhaled from the lungs Helpful to assist in initial confirmation of ETT placement Helpful to assist in continual confirmation of correct placement of ETT Not a substitute for observation and assessment of the patient FENEM CO2 Indicator Remove the indicator from the sealed packaging inside the BVM bagging The indicator should initially be indicating a purple color Place the indicator onto the exhalation port of the BVM neck Ventilate the patient with 6 breaths of moderate tidal volume The color indicator can change back and forth allowing for >2 hours of reliability Color Indicators For The ETCO2 Yellow – CO2 is being detected; placement is good Tan- minimal CO2 is being detected; evaluate CPR technique, patient perfusion, device placement Purple – no CO2 is being detected; evaluate placement by other means and consider removal & replacement of ETT EDD Esophageal detector device – EDD Helps determine if the ETT is in the trachea or esophagus Squeeze (collapse) the EDD and place on the end of the ETT If the bulb refills easily, ETT is in the trachea If bulb refills slowly or not at all, ETT is in the esophagus EDD Using the EDD Use is required only when the ETCO2 indicator is not conclusive Drawback is that you have to stop ventilating the patient to evaluate ETT placement Document whatever device was used to confirm ETT placment Ventilation Rates Ventilation via BVM in non-intubated apneic patient One breath every 5 - 6 seconds (10 - 12 breaths per minute) Supplement the patient’s own respirations if any Ventilating during 1 and 2 man CPR via BVM prior to intubation Two breaths after every 30 compressions Patient who has been intubated One breath every 6 – 8 seconds (8 – 10 breaths per minute) During CPR, ventilator bags once every 6-8 seconds during continuous CPR Combitube An advanced airway that is an alternative to the use of an ETT Inserted without visualization of the vocal cords The tube is most likely to enter the esophagus 2 balloon cuffs are inflated with air If the tube is in the esophagus, ventilation to the trachea is via side ports If the tube is in the trachea, ventilation is via an opening in the distal tip of the tube Combitube Approval of the Combitube Use is department specific The EMS office will grant approval on a department by department basis If your department wants to carry the combitube, your department will do the training See your department medical officer if you have questions Rhythm Analysis Rate – Under 60? 60-100? Over 100? Regularity – Regular or irregular R to R? P waves – Present? Uniform? Followed by a QRS? PR interval – normal 0.12 – 0.20 seconds >0.20 seconds the delay is at the AV node QRS complex – normal <0.12 seconds >0.12 seconds indicates a conduction delay in the ventricles or an abnormal pathway is being used in the ventricles What are these rhythms? Rhythm Interpretation Rhythm A – complete heart block Regular R to R Regular P to P No consistent PR interval and no pattern to the PR interval Signs and symptoms dependent on overall ventricular rate Rhythm B – paced rhythm; 1:1 capture Treatment for Symptomatic Type II - Classical or 3rd Degree Heart Block Begin TCP Place anterior pad in apical area (over apex of heart on left chest wall) Place posterior pad in mid-upper back between spine and scapula For discomfort, Valium 2 mg IVP slowly over 2 minutes May repeat Valium 2 mg slow IVP every 2 minutes to a max of 10 mg as needed for chest wall discomfort TCP Rate: set at 80 per minute Sensitivity: set on auto (demand mode) If rate picks up >80, the TCP will go into the standby mode Output: start at lowest setting and increase mA until capture evident on EKG Evaluate the patient’s hemodynamic state: Level of consciousness Radial pulse Blood pressure Skin parameters What is this rhythm? Rhythm Interpretation & Treatment Sinus tachycardia Regular rhythm Rate > 100 beats per minute (120) PR interval 0.12 – 0.20 seconds (0.16) QRS complex < 0.12 seconds (0.06) Intervention Determine the cause and address the cause Anxiety, pain, fever, other forms of increased body temperature (ie: heat disorders), shock, dehydration, increased activity Do not use drug therapy on sinus tachycardia What is this rhythm? Interpretation & Treatment Atrial fibrillation with uniformed PVC’s Underlying rhythm irregularly irregular When heart rates are faster and sustained over 100, the patient tends to develop more symptoms & is less tolerant of the decreased cardiac output Tired and weak feeling Skin cool and clammy Dizziness when upright Lowered blood pressure PVC’s Usually a sign of ventricular irritability The patient may be aware of early or skipped beats May or may not produce a matching radial pulse depending on cardiac output with the beat Often, oxygen diminishes the PVC activity If the patient is symptomatic due to PVC’s or the PVC’s are dangerous (multifocal, frequent, R on T), contact Medical Control for orders Treatment Rapid Atrial Fib/Flutter Stable with B/P >100 mmHg Verapamil 5 mg IVP slowly over 2 minutes If no response in 15 minutes and B/P remains > 100 mmHg, repeat Verapamil 5 mg IVP slow Watch for hypotension – treat with 200 ml fluid challenge Unstable B/P < 100 mmHg Contact Medical Control for orders including potential Verapamil order Is There ST Elevation? ST elevation in leads II, III, aVF Is There ST Elevation? ST elevation in V1 – V4 Is There ST Elevation? ST elevation in V2 – V6 Is There ST Elevation? Normal 12 Lead EKG - No ST Case #1 You are on the scene of a 72 year-old male in full arrest. Your crew is encountering several problems and you need to determine what to do. #1 – the BVM does not perform a tight seal and you cannot get adequate chest rise and fall #2 – you are unable to establish an IV #3 – you can’t remember the drugs or dosages for VF Case #1 Discussion Problem #1 – difficulty supporting ventilations via BVM You may “secure” the airway in whatever manner works at that time If you are having difficulty using the bag-valve-mask (BVM), then intubation becomes a high priority Secure the airway via placement of an ETT Confirm placement Direct visualization 5 point auscultation Bilateral rise & fall of the chest ETCO2 detector (or EDD) Case #1 Discussion Problem #2 – no IV access If there was failure of 2 peripheral attempts and/or you are unable to find a peripheral site in 90 seconds, insert the EZ IO Any medication that was put through the peripheral IV can be placed into the IO Remember to place a pressure bag around the IV bag to facilitate the flow rate Place a florescent yellow wrist band on the patient (preferably same side as the IO insertion) Case #1 Discussion Problem #3 – Drugs and dosages for VF Vasopressor – to support blood vessel tone Epinephrine 1:10,000 1 mg IVP Repeat every 3 – 5 minutes Antidysrhythmic – to suppress ventricular irritability, to increase the VF threshold Choose one (mixing these can cause increased cardiac irritability) Amiodarone 300 mg rapid IVP/IO (diluted in 20 ml syringe); repeat after 5 minutes at 150 mg IVP/IO Lidocaine 1.5 mg/kg IVP/IO; repeat after 5 minutes 0.75 mg/kg IVP/IO; call medical control if further doses (up to 3mg/kg) of Lidocaine are needed Case #2 You are on the scene of a MVC There is a family of 4 – mom, dad, 8 year old and 1 year old You have immobilized mom, dad, the 8 y/o You do not have a cervical collar to fit the 1 y/o #1 - What do you do? #2 - How do you document immobilization? #3 - How can you obtain vital signs on this infant? Case #2 Discussion Problem #1 – no collar to fit the infant Do not penalize the child for their size – if the rest of the vehicle occupants needed to be immobilized, so does this infant Keep the child in their car seat if possible Use towel rolls and tape Use towels to pad along the infant’s sides and into any gaps to improve immobilization If the infant squirms too much, use manual control also Case #2 Discussion Problem #2 – documentation of immobilization Document any manual efforts Document distal pulses, motor, and sensation before and after immobilization (PMS) On an infant this information may heavily rely on your skills of observation Document the use of rolled towels and where they have been placed and taped Document the use of the infant car seat Case #2 Discussion Problem #3 – obtaining difficult vital signs Vital signs can often be a challenge Think out of the box to obtain vital signs Can’t get a blood pressure or don’t have ready access to a B/P cuff? If you can feel a radial pulse the B/P is minimally 80-90 systolic What is the patient’s level of consciousness? The blood flow to the brain needs to be adequate for a decent level of consciousness Case #2 Problem #3 cont’d Can’t obtain a radial pulse? On infants feel a brachial On all persons you can get an apical pulse Stethoscope held over the heart Can be difficult to accurately hear especially in the very young Lub dub can blend and make it difficult to count accurately Start practicing now to be able to hear the difference and count accurately Document the heart rate as “AP” to indicate obtained via apical Case #2 Problem #3 cont’d On all persons whether they allow you to physically assess them or not there are certain assessments that can and should be made and documented Level of consciousness Respiratory rate and effort– you can get from across the room Skin parameters – color & often moisture References Bledsoe, B., Porter, R., Cherry, R. Essentials of Paramedic Care. Second Edition. Brady. 2007. Limmer, D., O’Keefe, M. Emergency Care 10th Edition. Brady. 2005. Region X SOP March 2007. Amended January 2008. www.vidacare.com (EZ IO needle)