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American
Air Ambulance administers an extensive
series of protocols and procedures for
the benefit of our patients.
Emergency Medical Guidelines ’99 (third edition)
has been accepted as the foundation
of our medical protocols which may be
followed without on-line medical direction.
This book contains extensive
areas covering Educational Guidelines,
Procedural Guidelines, Treatment Guidelines,
and Drug Utilization Guidelines.
The following is a basic outline of
Emergency Medical Guidelines ’99 (third edition):
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Topics
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Pages
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Educational Guideline
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1-59
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Procedural Guidelines
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61
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Airway Management
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62-74
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Cardiac
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75-84
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Medication and Fluid Administration
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87-100
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General
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101-108
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Immobilization
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109-115
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Interfacility Transports
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117-119
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Multiple casualty Incidents
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120-123
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Treatment
Guidelines
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125 |
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Medical
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127-134
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Cardiac conditions
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134-135
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Trauma
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146-152
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Toxicology
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152-155
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Infusion Rates
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156-164
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Drug Reference
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167-226
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The following is a addendum to our current operating protocols in reference
to DISEASES, CONDITIONS, AND ORGAN SYSTEMS
AFFECTED BY ALTITUDE
AND THE AIR MEDICAL ENVIRONMENT.
If you would like a full version of
our protocols please contact our medical
department.
Even in
pressurized aircraft, the air medical
environment presents unique stresses
on our patients. These stresses include
immobility, noise, motion, vibration,
hypoxemia, decreased humidity, gravity,
and decreased barometric pressure with
subsequent air expansion. So as to assure
that our patients are transported as
safely and comfortably as possible,
the following protocols shall apply;
1)
Head and Neck;
a)
Balloons:
All balloons e.g. nasal balloons
for posterior nasal bleed shall be filled
with water whenever possible.
b)
Trapped air: Aircraft
pressure may need to be adjusted for
patient comfort due to the expansion
of trapped air in sinuses, dental cavities,
or middle ear blockage. Patients with
intracranial or intracerebral air will
need to be flown at or near a sea level
equivalent pressure. Patients prone
to middle ear block will be offered
chewing gum and/or afrin nasal spray
if clinically appropriate.
c)
Eye injuries: Cabin
pressure may need to be adjusted for
patients with eye injuries. In addition,
these patients and patients with recent
eye surgeries shall have their heads
elevated and immobilized during flight.
Supplemental oxygen will be used for
all patients with recent eye injury
or eye surgery. (due to the high oxygen
requirements of the retina).
d)
Neurology insults:
All patients with head injuries, brain
injuries, or cranial surgery shall be
loaded with their feet to the rear of
the aircraft. The patients head will
be elevated to 30 degrees. Oxygen saturation
will be maintained at or above 95%.
Foley catheters will be inserted. Patients
with a Glasgow Coma Scale (GCS) score
of 9 or less shall be intubated unless
their baseline GCS is normally 9 or
less, or unless they have a valid current
DNR requesting no intubation. NG tubes
will be inserted unless the patient
has a cribform plate or basilar skull
fracture.
e)
Eye humidification:
Comatose patients shall be given
artificial tears every ho8ur during
a flight unless eyelids are taped closed.
Patients and passengers with contact
lenses shall be offered moisturizing
eye drops at frequent intervals. (e.g.
Visine).
f)
Seizures: All patients
with a history of seizures, or have
a high potential for seizures shall
be evaluated for anticonvulsant medication
and/or sedation.
g)
Trauma patients: If
the patient complains of c-spine, examine
x-ray. If not x-ray not available, apply
neck brace prior to transport.
h)
Wired jaws: An antiemetic
shall be given prior to transport. Wire
cutters shall be available in the event
of emesis.
2)
Cardiovascular;
a)
Trapped air: Patients
with decompression sickness or those
who are at risk of decompression sickness
shall be flown at a sea level equivalent
altitude for pressurization purpose.
b)
Hydration: Fluids
po shall be encouraged (clinical condition
permitting) or IV’s administered or
adjusted to compensate for low humidity
environment. Patients shall receive
frequent mouth care with lemon glycerin
swabs or fluids.
c)
Recent MI or unstable angina:
those patients shall be flown in accordance
with Intensive Air’s unstable angina/recent
MI protocol.
d)
Shocks: All patients
in shock of any kind shall have an NG
tube inserted.
e)
CHF: All patients
in CHF shall have oxygen saturation
at or above 95%. They shall be placed
with their feet to the rear of the aircraft,
and transported in a sitting or semi-fowler’s
position.
3)
Pulmonary;
a)
Trapped air: Patients
with a pneumothorax shall have this
air vented via closed chest tube or
needle decompression. If venting is
not possible, cabin altitude will be
adjusted to accommodate this.
b)
Air filled devices:
Airway cuffs shall be filled with water
to prevent excessive tracheal pressure.
c)
Suctioning: Patients
with artificial airways shall be suctioned
prior to flight, then at each refueling
stop. Frequent suctioning may be required
depending on the patient’s clinical
condition.
d)
Pulmonary secretions:
Thick and difficult pulmonary secretion
may be worsened by the low humidity.
Mucous plugs may form. Patients with
this problem will be offered humidified
air via mask or Guifesen preparations
to act as expectorant/mucolytic.
e)
Oxygen: Oxygen will
be available on all flights. All flights
should prepare for at least 2 lpm. Any
patient with a known disease or condition
that lessens tissue oxygenation, (e.g.
CHF, anemia, COPD, narcotics) or whose
condition might be aggravated by hypoxia
shall be placed on oxygen during flight
and oxygen saturation at or above 90%
at all times. (Exceptions to this are
addressed elsewhere in this protocol).
Patients already on 100% oxygen prior
to flight will need to be flown at lower
altitudes to maintain adequate oxygenation.
f)
Special precautions for chronically
hypoxic COPD patients: Patients
with severe COPD whose oxygen saturations
normally run less than 90% should be
given only enough oxygen to maintain
their “normal” oxygen saturation. Attempting
to go higher will only lead to further
carbon dioxide retention and possible
respiratory arrest or cardiac arrest.
g)
Severely obese patients:
To reduce the risk of barobariatrauma,
the patient will be placed on 100% oxygen
for 15 minutes prior to transport. Oxygen
saturation will then be maintained at
or above 95% throughout the flight with
supplemental oxygen.
h)
Appropriate oxygen supplies:
For patients known to require oxygen,
the Medical Coordinator will calculate
the amount of oxygen needed to meet
the patient’s needs from “pick-up” to
“delivery”. Due to potential unforeseen
delays in patient transport, a minimum
of 150% of the calculated need will
be loaded along with the patient.
4)
Gastrointestinal;
a)
Air filled devices:
All balloons shall be filled with
water, when possible. If not possible,
the pressure must be monitored closely.
(e.g. esophageal blake more tubes for
bleeding varices.
b)
Trapped air: NG tubes,
orogastric tubes, and colostomy bags
shall be vented during flight, not clamped.
c)
Patients with non-vented intestinal
or peritoneal air: e.g. bowel
obstruction or recent surgery may need
cabin pressure adjusted to the avoid
complications of air expansion.
d)
Air sickness: Patients
who are prone to or who develop air
sickness shall be offered an antiemetic.
This can be done by mouth, injection
(IM or IV), suppository (e.g. phenergan)
or patch such as trans-derm Scop.
5)
Genito-urinary;
a)
Air filled devices:
Balloons such as foley catheters shall be filled with water when possible.
b)
Voiding:
Patients shall be encouraged to void
prior to flight as well as during fueling
stops. For patients who cannot void
easily, foley catheters will be considered
on all flights which are expected to
be 6 hours or longer.
6)
Skin;
a)
Patient
shall be turned and repositioned at
least every two hours whenever possible.
For flights over 4 hours, the stretcher
should be padded to reduce tissue breakdown.
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