A. Hemodilution Test Procedure
Inclusion Criteria:
- Weight of more than 110 lbs and less than 220 lbs.
- Physical status of ASA I of II
- Able to read and communicate in English
- Has signed written informed consent
- Female, non pregnant. Female subjects will be provided with a pregnancy test free of charge.
Exclusion Criteria
- Age less than 18 yrs and greater than 35 years
- Weight of less than 110 lbs or more than 220 lbs.
- Hemoglobin less than 12 g/dL
- ASA physical status of III. IV, V.
- Pregnant
- Subject has known drug or alcohol abuse
- Subject has skin abnormalities affecting the digits such as psoriasis, eczema, angioma, scar tissue, burn, fungal infection, substantial skin breakdown, nail polish or acrylic nails.
- Subject has experienced a head injury with loss of consciousness within the last year
- Subject has known neurological and psychiatric disorder that interferes with the subjects level of consciousness
- Known or concurrent chronic usage of psychoactive or anticonvulsive drugs within the last 90 days, or any use in the last 7 day (i.e. tricyclic antidepressants, MAO inhibitors, Lithum, neuroleptics, anxiolytics or antipsychotics, except SSRIs).
- Subject has any medical condition which in the judgment of the investigator, renders them inappropriate for participation in this study, such as Reynauds Syndrome.
- Hypertension: Systolic BP >140 mmHg or Diastolic BP > 90 mmHg.
- Baseline heart rate < 50 bpm.
- Inability to tolerate sitting still or minimal movement for up to 90 minutes
- Discretion of investigator
B. Blood Draw Test Procedure
Inclusion Criteria:
-Subjects must understand and consent to be in the study.
Exclusion Criteria
- Subjects less than 18 years of age.
- Subjects who do not understand the study and the risks involved.
- Anyone deemed ineligible by test personnel.