Biomedical subjects

K Macdonald

Publications and source records attributed to K Macdonald.

28 records · Page 2Linked to original sources

PubMed1975

An investigation of continuing education hypotheses about laboratory personnel.

The Kendall-Tau test with ties was utilized in testing for both level of significance and direction of relationship in hypotheses on continuing education for working laboratory personnel in the State of Iowa. Findings reported from a response group of 422 active laboratory personnel indicated that: (i) all educational levels of personnel are interested in continuing education; (ii) all laboratory personnel based on year of certification are interested in continuing education; (iii) supervisory personnel have a more marked interest in continuing education than line technologists/technicians; (iv) females are less willing to sacrifice for participation in continuing education than males; and (v) personnel in smaller hospitals have an interest in continuing education that is perhaps less than those in larger hospitals.

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Comparison of Sheffield media with standard media for the isolation of Haemophilus ducreyi.

Isolation of Haemophilus ducreyi is the only method for the definitive diagnosis of chancroid. Culture on supplemented gonococcal base (GCHgs) or on supplemented Muller-Hinton agar (MHHb) has yielded the best isolation rates. Sheffield media is an alternative to standard media. We compared the isolation rate of H. ducreyi on GCHgs and MHHb to that on the Sheffield media with and without 5% horse blood. Vancomycin (3 mg/L) was added to all media. Of the 87 specimens cultured from patients with genital ulcer disease, 57 (66%) were positive on either GCHgs or MHHb or on both. Twenty six (30%) were positive on GCHgs only, 15 (17%) on MHHb only, and 15 (17%) on both. One culture was positive on Sheffield medium with 5% horse blood; none were positive on Sheffield medium without horse blood. Stock strains showed good growth at 48 hr on GCHgs and MHHb, but no growth at 48 hr and only minimally detectable growth at 72 hr on Sheffield media with horse blood. No growth was detected on Sheffield media without horseblood. Thus optimal culture of H. ducreyi in Kenya requires two media, supplemented gonococcal base and Muller-Hinton agar. Sheffield media is not useful for the primary isolation of H. ducreyi.

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PubMedDate not supplied

Home study refresher courses for RNs and LPNs.

The home study refresher courses for registered nurses and licensed practical nurses have met a real need in this time of nursing shortage. The provision for self-paced study and self-arranged supervision of clinical practice allows the maximum flexibility to adjust to family responsibilities.

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PubMedDate not supplied