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Medicine and Health Sciences

Virginia Commonwealth University

Theses/Dissertations

1993

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Subjectivity Of Estimating Blood Loss Among Health Care Providers In The Operating Room, Hugh Andrew Siegel Jan 1993

Subjectivity Of Estimating Blood Loss Among Health Care Providers In The Operating Room, Hugh Andrew Siegel

Theses and Dissertations

This research utilized a descriptive study to establish a relationship between educational background and accuracy of estimating blood loss. The null hypothesis, that the educational background of health care providers in the operating room has no effect on the accuracy of estimating blood loss , was tested. Ten nurse anesthesia students, 8 certified registered nurse anesthetists, 16 operating room registered nurses, 12 anesthesiologists, and 9 surgeons were included in the sample population. A number of different protocols were utilized to assess the relative accuracy of blood volumes estimates. The study was separated into four stations. Station 1 consisted of three …


Comparison Of Succinylcholine Induced Fasciculation Attenuation With Defasciculating Doses Of Vecuronium And Mivacurium Based On Ideal Body Weight, Marvin E. Early Jan 1993

Comparison Of Succinylcholine Induced Fasciculation Attenuation With Defasciculating Doses Of Vecuronium And Mivacurium Based On Ideal Body Weight, Marvin E. Early

Theses and Dissertations

This study was conducted to determine if Mivacurium (Miv) was as effective as Vecuronium (Vec) in attenuating Succinylcholine (Sch)-induced fasciculations with muscle relaxant doses based upon ideal body weight (IBW). A quasi experimental design was used to study 60 patients who were randomly assigned to one of three groups. The two study groups were compared to a control group and each other with regards to the incidence and intensity of fasciculations. Either Vec (0.01 mg/kg (IBW)), Miv (0.02 mg/kg (IBW)), or saline (control) was administered in a double-blinded manner 3 minutes prior an intubating dose of Sch (IBW). Both pretreatment …


Relationships Among The Distribution Of Terminal Fields Of Sensory Afferent Projections To The Deep Layers Of The Superior Colliculus Within The Cat, Wayne Thomas Shaia Jan 1993

Relationships Among The Distribution Of Terminal Fields Of Sensory Afferent Projections To The Deep Layers Of The Superior Colliculus Within The Cat, Wayne Thomas Shaia

Theses and Dissertations

While it is well known that the different sensory modalities are primarily represented at separate locations within the central nervous system, there are numerous sites in which information from the different sensory modalities converge. Perhaps the best known structure where inputs from different sensory modalities converge is the superior colliculus. Here, not only are visual, auditory and somatosensory inputs present, but they also form organized representations of auditory and visual space as well a map of the body surface in addition, neurons that receive inputs from more than one sensory modality (i.e. multisensory) are found here in abundance. Although a …