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EEG
GUIDELINES*
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A minimum of eight scalp electrodes and ear lobe references covering
the major brain areas shall be used; ground
electrode should not be used in ICU or if electrical
monitoring equipment is in-use.
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Disk electrodes will be applied; inter-electrode impedances will be
kept under 10,000 ohms and over 100 ohms; the
inter-electrode distance should be at least 10 cm.
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Each electrode will be tested by touching it separately to create an
artifact potential on the record.
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Sensitivity will be increased from 7.5 μV/mm
to 2 μV/mm during most of the recording with inclusion of appropriate
calibration.
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Filters
should provide a wide window i.e., time constant 0.3
sec-land high frequency > 70 Hz.
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EEG should be tested for reactivity to loud noise and pitch.
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Recording will be done for at least 30 minutes.
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A pair of electrodes will be applied on the dorsum of the right hand
at a distance of 6-7 cm; electrocardiographic
monitor will be applied.
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Electromyographic artifacts can be seen sometimes in a patient with
electrocerebral silence.
If these obscure the recording, neuromuscular
blocking agents like pancuronium or succinylcholine
may be used, but during the recording only.
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Recording
should be made only by a qualified EEG technologist. A repeat EEG should be obtained if there is doubt about
electrocerebral silence
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MINISTRY OF
HEALTH
NATIONAL KIDNEY FOUNDATION
POTENTIAL
CADAVER DONOR MAINTENANCE PROTOCOL
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Date
&
Time |
| Patient's
Name: |
Age: |
Sex: |
| Hospital: |
Record
No.: |
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Check |
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Introduce
nasogastric tube and Foley's catheter.
Maintain accurate intake and output.
Establish a CVP line.
Weigh the patient or assess the weight.
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INVESTIGATIONS:
Once only:
Titers for CMV, HSV, EBV, Brucella, Toxoplasma and
VDRL. Screening
for HIV, HBsAg, HBsAb, HBeAg, anti-HCV.
Blood group, Rh factor, Creatinine clearance,
Cultures of urine, blood and if any, wounds.
Daily: CBC, LFT, PT, PTT, Blood glucose,
Chest X-ray, EKG and Urine analysis.
4
hourly: Blood urea or BUN, Serum creatinine and
electrolytes and if indicated, ABG.
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- If
the patient is stable with a systolic BP of 100-110
mm Hg, the urine output should be measured hourly
and must be replaced by i.v. dextrose 5% OR
0.45% saline adding an extra 30 cc to the measured
urine volume (volume by volume replacement).
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- If
BP is less than 100 mm Hg and CVP is less than 10 cm
H2O, give a fluid challenge of 500 cc of normal
saline to obtain a systolic BP of 100110 mm Hg.
Repeat as necessary.
Up to 4 liters may be needed in the first
hour.
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- If
systolic BP remains below 100 mm Hg even after fluid
replacement, start EITHER dopamine 5 μgm/Kg/min
or dobutamine 5 μgm/Kg/min
or epinephrine 0.1 - 1 μgm/Kg/min
with Pitressin 5 - 10 units i.m. q 6h.
Wean vasopressors as BP stabilises.
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- In
a patient with stable BP, if urine output remains
less than 50 cc/ hour for two consecutive hours and
the CVP is found to be above 12 cm H2O, give
furosemide 20 - 40 mg i.v. Repeat q 2h, if
necessary.
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- If
heart rate is below 50 /min isoproterenol 0.5 - 5
μgm/min
may be given depending on response.
Titrate as needed.
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NAME
OF THE DOCTOR:
SIGNATURE: |
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This protocol should be carried-out by the ICU doctor or
treating physician. |
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