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Howard G. Smith, M.D. is a former radio medical editor and talk show host in the Boston Metro area.  His "Medical Minute" of health and wellness news and commentary was a regular weekday feature on WBZ-AM, WRKO-AM, and WMRE-AM.   His popular two-way talk show, Dr. Howard Smith OnCall, was regularly heard Sunday morning and middays on WBZ.

Trained at Harvard Medical School and a long-time faculty member at Boston Children’s Hospital, he practiced Pediatric Otolaryngology for 40 years in Boston, Southern California, and in central Connecticut.

If you have questions or suggestions about this content, please email the doctor at or leave him a message at 516-778-8864.  His website is:

Please note that the news, views, commentary, and opinions that Dr. Smith provides are for informational purposes only.  Any changes that you or members of your family contemplate making to lifestyle, diet, medications, or medical therapy should always be discussed beforehand with personal physicians who have been supervising your care.

Aug 9, 2019



If you smoked or ate some weed over the weekend, will you flunk that pop drug test your boss springs on you Monday morning?  The answer depends on how much you consumed and the type of test you must take.  Either way, be forewarned that marijuana’s psychoactive agent, THC, is fat-soluble and definitely hangs around in your body longer than alcohol.


Smoking one isolated marijuana cigarette yields a positive test for 3 days.  If you smoke 3 or 4 times a week, you’ll fail a test up to a week later.  If you smoke everyday for awhile, you will test positive for at least a month after quitting.


The most sensitive marijuana test is hair analysis, and with it THC detection can occur up to 3 months after stopping any use.  Next sensitive is the urine test that detects use 3 to 30 days after cessation.   Saliva tests may be positive for 24 hours.  Blood tests only pick up THC for 3-4 hours after use.


If your job depends on a negative unannounced drug test, you’d better think twice about regular weed use.


Michelle Taylor, 1 , 2 Rosie Lees, 2 Graeme Henderson, 3 Anne Lingford‐Hughes, 4 John Macleod, 2 John Sullivan, 5 and Matthew Hickman 2

Comparison of cannabinoids in hair with self‐reported cannabis consumption in heavy, light and non‐cannabis users.  Drug Alcohol Rev. 2017 Mar; 36(2): 220–226.

#marijuana #weed #hash #drugtest #salivatest #hairanalysis #health news #health tips