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Biomedical subjects

C Crenshaw

Publications and source records attributed to C Crenshaw.

41 records · Page 3Linked to original sources

Creating a unit-specific charging system.

A totally nurse-dependent charging system developed specifically for the labor and delivery suite at the University of Maryland Medical System is described in the article. This easy and effective method of charging was incorporated into an already existing patient census and classification system. The number of relative value units has increased by more than 30%, and the amount of revenue billed has increased by more than $800,000 in the first 10 months after implementation.

Accounting↗

Modified resazurin reduction test for determining the fertility potential of bovine spermatozoa.

The objective of this study was to determine if reduction of the dye resazurin by bovine sperm is associated with the concentration of motile and progressively motile sperm. Metabolically active sperm reduce resazurin (blue color) to resorufin (pink color) and upon further reduction to dihydroresorufin (white color). A total of 68 semen samples from 20 Limousin bulls were collected using electroejaculation. The concentration of motile and progressively motile sperm was determined. Resazurin was added to each semen sample (8.8 microgram/mL semen), samples were then incubated at 37 degrees C for a maximum of 15 min, and visual color changes indicative of dye reduction were noted. Samples were identified as having either low fertility potential (< 200 x 10(6)/mL motile sperm and < 100 x 10(6)/mL progressively motile sperm) or high fertility potential (> or = 200 x 10(6)/mL motile sperm and > or = 100 x 10(6)/mL progressively motile sperm). Assessment of the reduction of resazurin from blue to pink (< or = 3.5 min) allowed identification of 88% of the low and 94% of the high fertility potential samples. In addition, the reduction of resazurin from blue to white (< 15 min) resulted in identification of 82% of the low and 76% of the high fertility potential samples. The modified resazurin reduction test is useful for determining the fertility potential of bovine spermatozoa.

Animals↗

A convertible perinatal database.

This is a description of the process and outcome in the development of a large perinatal database. The database is relatively unique, as it utilizes a convenient paper format for initial data entry that can easily serve, in the absence of a computer, as a very complete obstetric and neonatal medical record. With the addition of a moderately priced microcomputer, the database is converted into a computerized medical record that provides admission notes for the labor suite and the nursery, and discharge summaries for abortion, non-delivery, delivery, newborn nursery, and intensive care nursery admissions. The development of the paper forms, the choice of data-entry clerks over health-care providers for computer input, the design of the software to ease use and economize on storage requirements, and the use of the database in research projects are described.

Female↗