Michael P. Hlastala, Ph. D.  

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PRIMARY AREAS OF EXPERTISE:  Physiology of Breath Testing, Infrared Absorption Testing of Breath, Physiology of Alcohol in the Body, Field Sobriety Testing, Exchange of Gases by the Body.  I can be presented as an expert on "Blood Testing", "Breath Testing", "Physiology of Alcohol Impairment" and/or Field Sobriety Testing.  The following areas of inquiry are designed to assist in focusing on the major issues in a particular case.


Qualifications
 

Errors in Breath 
Test Due to Physiological Variations 


Other 
Error 
Questions



Breath Temperature

Instrument
Accuracy

Acetone

Contaminants

Mouth Alcohol

Field Sobriety
Testing

Other Considerations


QUALIFICATIONS   

CURRENT POSITION

DUTIES

EDUCATIONAL BACKGROUND

ACADEMIC POSITIONS HELD

HONORS RECEIVED

FOREIGN APPOINTMENTS

NATIONAL RESPONSIBILITIES

SCIENTIFIC PUBLICATIONS

AREA OF EXPERTISE AND ITS RELATION TO DETERMINATION OF BREATH AND BLOOD ALCOHOL

ERRORS IN THE BREATH TEST DUE TO PHYSIOLOGICAL VARIATIONS

A SCIENTIFICALLY ACCURATE TEST

MAJOR SOURCE OF ERROR

MOVEMENT OF ALCOHOL FROM THE BODY TO THE BREATH

METHOD BY WHICH DATAMASTER MEASURES ALCOHOL

CHANGING ALCOHOL CONCENTRATION DURING EXHALATION

VALID BREATH TEST

MEASUREMENT OF EXHALED BREATH VOLUME

CHANGES IN THE BREATHING PATTERN

OTHER ERROR QUESTIONS

NORMAL VARIATIONS IN BODY TEMPERATURE

CHANGES IN NUMBER OF RED BLOOD CELLS

IMPORTANCE OF DEEP LUNG AIR

BREATH TEMPERATURE

CHANGES IN BREATH TEMPERATURE DURING EXHALATION

IMPORTANCE OF CHANGING BREATH TEMPERATURE

INSTRUMENT ACCURACY

ACCURACY OF DATAMASTER DUE TO SIMULATOR SOLUTION VARIATION

ACETONE

PRESENCE OF ACETONE IN THE BREATH

AFFECT OF ACETONE ON THE DATAMASTER READING

CORRECTION FOR ACETONE

ACCURACY OF CORRECTION FOR ACETONE

CONTAMINANTS

INFLUENCE OF OTHER SUBSTANCES ON THE ACCURACY OF THE DATAMASTER

UPTAKE OF THE CONTAMINATING SUBSTANCE THROUGH SKIN OR INSPIRED AIR

ANY REPORTS OF ERRONEOUSLY HIGH BREATH TEST VALUES DUE TO CONTAMINATING SUBSTANCES

STUDIES SHOWING FALSELY HIGH ALCOHOL READINGS WITH NO ALCOHOL IN THE BLOOD

MOUTH ALCOHOL

MOUTH ALCOHOL CAUSES A FALSELY HIGH BrAC

CONDITIONS UNDER WHICH ALCOHOL CAN BE PRESENT IN THE MOUTH

ROLE OF THE MOUTH ALCOHOL DETECTOR

FIELD SOBRIETY TESTING (FTS)

CERTIFIED TO ADMINISTER FIELD SOBRIETY TESTS

DEFINITION OF FIELD SOBRIETY TESTS

ACCURACY OF FST'S

IMPORTANCE OF THE ENVIRONMENTAL CONDITIONS

ACCURACY OF THE FIELD SOBRIETY TESTS

ACCURACY OF FTS'S ON PEOPLE WITH NO ALCOHOL

RELEVANCE OF PHYSICAL DISABILITIES

BODY WEIGHT

AGE

OTHER CONSIDERATIONS

FEVER DUE TO ILLNESS

PULMONARY DISEASE SUCH AS ASTHMA, EMPHYSEMA, OR CHRONIC BRONCHITIS

WIDMARK'S CALCULATION

INHERENT BIAS AGAINST SUBJECTS WITH SMALL LUNG VOLUME

ACCURACY WITH TWO BREATH VALUES


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