Comparison of Three Methods of Hemoglobin Monitoring
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The purpose of this study is to compare the hemoglobin results obtained with 1) the HemoCue™, 2) the Masimo SpHb™, and 3) the UCSF Clinical Laboratory. The goal is to determine if these three values differ from each other during various levels of blood loss in the clinical care of patients for spine revision and hip revision surgery.
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Ages Eligible for Study:
18 Years and older (Adult, Senior)
Sexes Eligible for Study:
Accepts Healthy Volunteers:
See inclusion/exclusion criteria
Male or non-pregnant female 18 y/o or older
American Society of Anesthesiology Classification 1, 2 or 3
Scheduled to undergo spine or hip revision surgery
Pregnant or nursing
Patients who in the study investigators clinical judgement would not be suitable for research.