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Transcript
Introduction
• In 1996, asthma was the leading cause of
hospitalizations in New York City for
children (up to the age of 14 ).
• In 1995, asthma hospitalizations for
children of the same age group were 3
times the national average and 5 times
the state average.
1
Introduction (cont.)
• In New York City, EMTs & Paramedics
treat approximately 50,000 asthmatics each
year.
• While these patients benefit from
bronchodilator therapy, the availability of
ALS response units cannot always be
assured.
• As a result, these patients are treated by
2
EMTs.
Mortality from asthma is
increasing worldwide
From 1980 - 1987, the death rate
has increased by 31% in the United
States. 5,000 deaths per year.
3
Many studies have shown
The efficacy and SAFETY of
albuterol in the treatment of
bronchospasm associated with
asthma.
4
An expanded scope of practice for EMTs
Could provide benefits to the
population of asthmatics in New York
City
5
May 1, 1998 - 2 new call types
were implemented
• ASTHMP - for patients under 15 years old
• ASTHMA - for patients 15 years of age or
older
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Inclusion Criteria
• Patients between the ages of 1 and 65 years
old (with no ALS immediately available).
• Patients complaining of difficulty breathing
secondary to an exacerbation of their
previously diagnosed asthma.
7
Exclusion Criteria
• Patients with a history of hypersensitivity to
albuterol sulfate.
• Patients exhibiting signs of respiratory
failure (a patient requiring ventilations).
8
Adult Respiratory Failure
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•
•
•
•
Decreased level of consciousness
Too dyspneic to speak
Cyanosis (despite oxygen therapy)
Diminished breath sounds
Patient requires assisted ventilations
9
Pediatric Respiratory
Failure
• Ineffective respiratory effort with central
cyanosis, agitation or lethargy, severe
dyspnea or labored breathing, bobbing or
grunting and marked intercostal &
parasternal retractions.
10
Differential Diagnosis of
Bronchospasm
•
•
•
•
•
•
COPD
Foreign body obstruction
Pulmonary Embolus
Anaphylactic reaction
Pulmonary Edema
Asthma
11
Pathology of Asthma
• Reversible smooth muscle spasm of the
airway associated with hypersensitivity of
the airway to different stimuli. Primarily an
inflammatory process.
• Smooth muscle contractions
• Mucosal edema
• Mucous plugging
12
The Lungs
13
The Lower Airway
14
Triggers of Asthma Attacks
•
•
•
•
•
Allergies
Infection
Stress
Temperature changes
Seasonal changes
15
Signs and Symptoms
•
•
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•
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Dyspnea
Wheezing
Tachypnea
Tachycardia
Cyanosis
Cough
• Accessory muscle use
• Inability to speak…..
in complete… sentences.
• Anxiety (hypoxia)
• Prolonged expiratory phase
• Tripod positioning
• Nasal Flaring (infants)
16
Respiratory Muscle Fatigue
• Muscles are overworked to compensate for
problem.
• Increased work of breathing
• Can lead to exhaustion and respiratory
failure.
17
Assessment of The Asthma
Patient
18
Assessment of the Asthmatic
• Chief complaint
• History of present illness
• Past medical history
19
History of Present Illness
•
•
•
•
•
•
•
How long
Events leading up to…
How severe (Borg Scale)
Aggravating / Alleviating factors
Other complaints
Steroid use in last 24 hours (p.o. / inhaled)
Other medications
20
Past Medical History
•
•
•
•
Confirm asthma history
Other medical conditions (cardiac)
E.D. visits for asthma in the last 12 months
Hospital admissions for asthma in last 12
months
• Previously intubated due to asthma?
• Allergies to medications, etc.
21
Note: Do not delay treatment to
solicit a patient’s medical history
(except: asthma,allergies and
cardiac history.)
22
Physical Examination
•
•
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Respiratory distress vs. Respiratory failure
Posturing (tripod positioning)
Pursed lip breathing
Vital signs
Skin color, temperature and moisture
Ability to speak... in complete... sentences
Accessory muscle use
23
Physical Examination (cont.)
• Borg Scale (0 - 10)
• Peak flow
• Height (you may ask patient)
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Peak Flow Meter
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Auscultation of Breath Sounds
• General requirements for successful
evaluation:
•
•
•
•
Patience
Effective technique
Good hearing
Knowledge of sounds
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Physical Examination (cont.)
• Assessing lung sounds
•
•
•
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Rales
Rhonchi
Stridor
Wheezing
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Lung Sounds Found In Common
Emergency Conditions
• C.O.P.D.
– Diminished
– Wheezes
– Prolonged expiratory phase
• Pneumonia
– Rales (usually in one area)
29
Lung Sounds Found In Common
Emergency Conditions
• Pulmonary Edema
– Diminished Sounds
– Rales (usually bilateral)
• Asthma
– Diminished Sounds (may be on one side)
– Wheezes
– Prolonged expiratory phase
30
Wheezes
• High pitched, continuous sounds
• Occur on inspiration or expiration
• Result of narrowed bronchioles
31
Wheezing Assessment
•
•
•
•
No Wheezing
Wheezing (audible with stethoscope)
Wheezing (audible without scope)
Poor air exchange (diminished lung
sounds)
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Absent or Diminished Sounds
•
•
•
•
•
•
Pneumothorax
Hemothorax
Obesity
Hypoventilation
Fluid or pus in pleura or lung
COPD or Asthma with poor airflow
33
Stethoscope Placement
34
Technique
•
•
•
•
•
Sit patient up
May not be possible to auscultate all areas
Place diaphragm firmly on chest wall
Avoid extraneous noise
Avoid prolonged examination of the chest
35
Technique
• Have the patient open mouth and take deep
breaths.
• Avoid hyperventilation.
• Listen at each location and note
abnormalities.
36
Albuterol Sulfate Ampules
37
Pharmacology: Albuterol Sulfate
• Actions
– Bronchodilator
• Minimal side effects
•
•
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Nervousness
Dizziness
Flushing
Tachycardia
Dry mouth
Tremors
• Palpitations
• Drowsiness
• Chest discomfort
• Muscle cramps
• Insomnia
• Weakness
38
Indications for Project Use
• Relief of broncospasm due to exacerbation
of asthma.
Use with caution for patients with:
•
•
•
•
Previous M.I.
C.H.F.
Angina
Arrhythmias
You must contact
Medical Control
39
Contraindications
• Patients with known hypersensitivity to the
medication or its components.
• Patients in respiratory failure
(those patients requiring ventilatory assistance)
40
Dosage
• One unit dose, 3.0 cc or 0.083%
Via nebulizer at 6 liters per minute or at
a flow rate that will deliver the
medication over 5 to 15 minutes.
• Dose may be repeated if the symptoms
persist for a total of 2 doses.
41
5 rights of Medication
Administration
•
•
•
•
•
Right Patient
Right Drug (beware look alikes)
Right Dosage
Right Route
Right Time
42
Check 3 Times For:
• Expiration Date
• Discoloration and Clarity
• Particulate matter
43
Administration (cont.)
•
•
•
•
•
Assemble nebulizer
Add medication
Attach to oxygen regulator
Set flow meter to 6 lpm
Instruct patient on use
– inform adult patient
– modify delivery for very young patients
44
Nebulizer
45
Assembled Nebulizer
46
Assembled Nebulizer and
Oxygen Tubing
47
Treatment of Asthma Patient
• Assess breathing
• Administer oxygen via non - rebreather
or assist ventilations
• Monitor Breathing
• Do not permit physical activity
• Place patient in position of comfort
48
Assess and Document prior to
administration of albuterol
• Patient is between 1 and 65 years of age
• Dyspnea is secondary to previously
diagnosed asthma
• Vital signs
• Ability to speak… in complete... sentences
• Accessory muscle use
• Wheezing assessment
49
Assess and Document prior to
administration of albuterol (cont.)
• Borg scale (0 - 10)
• Peak flow
• Contact medical control if patient has
pertinent cardiac history
• “The 5 rights” of medication administration
50
Treatment (cont.)
• Administer albuterol sulfate (one unit dose)
via nebulizer (6 lpm)
• Begin transport
– Do not delay transport to administer medication
• If symptoms persist, give 2nd dose
• Upon transfer of patient, reassess and
document as before.
51
Treatment (cont.)
• Medical control MUST be contacted for any
patient who refuses medical assistance or
transport.
• Request ALS if the patient is in respiratory
failure
52
Documentation
• ACR : All pertinent data should be recorded
in the “Comments” and “Treatment /
Response” sections
• PCR : All pertinent data should be recorded
in the “Subjective & Objective Physical
Assessment” sections as well as the
“Comments & Treatment Given” sections
53
Administrative
• Restocking of equipment
• Restocking of albuterol
– Paramedics have been instructed not to re supply BLS units. Follow local procedure.
54