A new BC Guideline has been developed to provide recommendations to primary care practitioners for the appropriate use of selected endocrine hormone tests in patients who are 19 years and older, as well as to help constrain inappropriate test utilization—particularly as it pertains to practices that are marketed as providing wellness and antiaging services. The guideline is available at www.BCGuidelines.ca.
• Testosterone testing in women for the investigation of low libido is not useful.
• Estradiol testing in men is not useful unless there are signs of spontaneous feminization.
• 1,25(OH)2 vitamin D testing, with rare exception, is indicated for the investigation of hypercalcemia with concomitantly low parathyroid hormone (PTH) only and is not indicated for monitoring patients receiving calcitriol.
• Insulin testing is primarily useful for investigation of spontaneous hy-poglycemia or to help distinguish type 1 diabetes from type 2 diabetes, but not for establishment of insulin resistance.
• The utility of salivary hormone testing in any clinical context is limited to Cushing syndrome screening using late-night salivary cortisol levels.
• Screening for growth hormone–related disorders with insulin-like growth factor 1 (IGF1) is indicated only in patients who demonstrate symptoms of growth hormone excess (acromegaly) or deficiency.
Above is the information needed to cite this article in your paper or presentation. The International Committee
of Medical Journal Editors (ICMJE) recommends the following citation style, which is the now nearly universally
accepted citation style for scientific papers:
Halpern SD, Ubel PA, Caplan AL, Marion DW, Palmer AM, Schiding JK, et al. Solid-organ transplantation in HIV-infected patients. N Engl J Med. 2002;347:284-7.
About the ICMJE and citation styles
The ICMJE is small group of editors of general medical journals who first met informally in Vancouver, British Columbia, in 1978 to establish guidelines for the format of manuscripts submitted to their journals. The group became known as the Vancouver Group. Its requirements for manuscripts, including formats for bibliographic references developed by the U.S. National Library of Medicine (NLM), were first published in 1979. The Vancouver Group expanded and evolved into the International Committee of Medical Journal Editors (ICMJE), which meets annually. The ICMJE created the Recommendations for the Conduct, Reporting, Editing, and Publication of Scholarly Work in Medical Journals to help authors and editors create and distribute accurate, clear, easily accessible reports of biomedical studies.
An alternate version of ICMJE style is to additionally list the month an issue number, but since most journals use continuous pagination, the shorter form provides sufficient information to locate the reference. The NLM now lists all authors.
BCMJ standard citation style is a slight modification of the ICMJE/NLM style, as follows:
- Only the first three authors are listed, followed by "et al."
- There is no period after the journal name.
- Page numbers are not abbreviated.
For more information on the ICMJE Recommendations for the Conduct, Reporting, Editing, and Publication of Scholarly Work in Medical Journals, visit www.icmje.org