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Biomedical subjects

R A Tozer

Publications and source records attributed to R A Tozer.

At least 19 recordsLinked to original sources
PubMed1996

Profile of blood donors in Port Moresby.

A record analysis study was conducted on blood donors in the greater Port Moresby area to determine the trend in the number of blood donations and the profile of donors between 1985 and 1994. There was no significant change in the donation trend between 1985-1989 and 1990-1994. While there were no changes in the age distribution between these two periods, there were significant increases in female donors (from 17% to 25%) and new donors (47% to 54%) during 1990-1994. The study data show that there has been a problem in the retention of donors in the greater Port Moresby area during the 1990-1994 period.

ABO Blood-Group System↗
PubMed1996

Papua New Guinea Red Cross Blood Transfusion Service: present status and future considerations.

About 28,000 units of blood are collected per annum. This is adequate for present needs. 11 donors have been found positive for human immunodeficiency virus (HIV) since testing started in 1987, 8 of these in the last year and a half. No case of transmission of HIV by transfusion in Papua New Guinea has been established. Although the prevalence varies in different areas, on average 15% of donors are positive for hepatitis B. The impact of these figures, future requirements for quantity of blood and the need for additional testing of donations for hepatitis C (HCV) and cytomegalovirus (CMV) will require clear evaluation of the choices and firm decisions.

Age Factors↗
PubMed1986

Anaemia in Yirrkala.

Yirrkala is an Aboriginal community in north-east Arnhem Land in the Northern Territory. Residents aged five years and over participated in a survey to establish the prevalence and causes of anaemia. Eleven per cent were anaemic (haemoglobin level less than 110 g/L). Most of these were iron deficient, and this deficiency was attributed, at least in part, to hookworm infestation; 15% were folate deficient; none was vitamin B12 deficient. There was no haemoglobinopathy, thalassaemia trait or glucose-6-phosphate dehydrogenase (G6PD) deficiency detected.

Adolescent↗
PubMed1980

Unusual presentation of patients with myelomatosis in Malawi.

Malignant myeloma is not rare in tropical Africa. Its mode of presentation in Malawi is most often that of a tumour mass in bone. The types of immunoglobulin heavy and light chains in the tumour cells occur with a frequency similar to that observed in temperate countries.

Adolescent↗
PubMed1968

Effect of dilution on the growth of bacteria from blood cultures.

Artificial blood culture systems were set up to find the dilution with medium necessary to overcome the natural antibacterial effect of blood. The results indicate that blood should be diluted at least 1 in 50 in medium unless an additive such as Liquoid is used.

Anticoagulants↗