
Comparison Chart and Specificity Analysis
EZ Detect vs.
Hemoccult®
EZ
Detect
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Hemoccult®
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Vitamin
C, vegetables, and rare meat are O.K.
-
Normal
diet: No need to prescribe diet restrictions. Full compliance.
-
No
handling of stool: sanitary and pleasant.
-
No
special training.
-
No
chemicals or reagents needed.
-
High
patient compliance: simple procedure.
-
Safe:
No contact with stool (biological waste).
-
Economical:
No laboratory costs or doctor visit.
-
Time:
Results from test are obtained immediately.
-
Quality
of water is verified: Water quality control check is provided with
test.
-
Modern
biological and scientific technology.
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-
Vitamin
C (False negatives) & Red meat (False positives) diet
restrictions.
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Restricted
Diet: Compliance difficult, possible unreliable results.
-
Patient
must handle stool: Unpleasant and not sanitary.
-
Test
must be performed by a trained technician or healthcare professional.
-
Requires
use of reagents and developer to obtain results.
-
Low
compliance: intimidating and objectionable procedure.
-
Not
Safe: Patient is exposed to biological waste (stool) with possible
exposure to non-A & B hepatitis.
-
Not
economical: Laboratory and Doctor fees.
-
Not
Timely: Patient must often wait several days for test results.
-
Quality
of water is not verified: Contaminants in water may cause false
positives.
-
Ancient
technology.
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EZ
DETECT Performance Characteristics
Sensitivity:
The EZ DETECT test detects a minimum
2.0 mg hemoglobin per100 ml water.
Accuracy
and Precision:
Samples (n = 20) containing 2.0mg hemoglobin per 100 ml water were
repetitively checked with EZ DETECT and found to be positive each time (100%). A repetitive
performance of the test (n = 20) on test samples devoid of RBC or
hemoglobin, gave negative results each time.
EZ
DETECT
General Chemical Principle
Peroxide
(on test Pad ) + Hemoglobin Water
+ Oxygen
Oxygen + Un-oxidized TMB (colorless dye) Oxidized
TMB (blue/green dye)
1.
The Lancet ,1988, Vol. 1; 819; Intervirology 1983; 20:23-3
2. Primary Care & Cancer, Dec. 1987, pg 31; April 1988, pg 6

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