AboutDr Alan Galbraith Expertise I can answer most questions on drugs, both medical and "recreational". Answers can be given in either technical or layperson terminology. My main areas of interest are psychiatric, gastrointestinal and cardiovascular drugs.
Experience I have been a university lecturer/head of department for almost thirty years, but am now retired. My research interests were alcohol, smoking and cardiovascular disease. I am already a well established and highly rated expert in the pharmacy section of this site.
Publications Principal author of "Fundamentals of Pharmacology" Editions 1-4 published between 1994 and 2004 by Pearson Education, Australia. Author of the 5th edition published 2007.
Author of many scientific papers.
Education/Credentials BSc(Hons);MSc;PhD;HECert
Awards and Honors The 4th edition of my textbook was awarded the the Educational Book of the Year Award in Australia.
Past/Present Clients See my profile in the pharmacy section.
Question I recently had to have some tests done for insurance purposes. Basic stuff. Blood pressure, Body Mass, cholesteral.One of them was a tobacco usage test. While I smoked for 20 years. I have not had a cigarette in 11 months. My test for tobacco usage came back positive. Not sure how that can be. I do however, still smoke marijuana on almost a daily basis. Probably once a day.
Is it possible, that the marijuana use contributed in some way to a positive result for tobacco usage?
Answer Dear Bill
As far as I know smoking marijuana won't show on a test for tobacco. However, if you had been exposed passively to cigarette smoke this could show up on tests. I believe that excessive consumption of tea can also cause false positives. Apart from this I cannot fathom what else could contribute to your positive test.
