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U.S.
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 |
167-226 |
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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