The blood flow velocity was significantly higher in the marijuana users than in the control subjects, both at the beginning of the study and after a month of abstinence from marijuana use. The marijuana users also had higher values on the pulsatility index (PI), which measures the amount of resistance to blood flow.
Coventry Health Care covers weight loss surgery if you meet the criteria set by the insurance company. Gastric bypass, lap band, gastric sleeve and duodenal switch surgery are covered if you meet the requirements.
Without knowing the specific qualifications for coverage, Coventry Health Care will definitely require the minimum that the National Institute of Health recommends as a qualification for weight loss surgery. 1  Body Mass Index of 40 or greater, OR. 2  Body Mass Index of 35 or greater with at least 2 comorbidities. 3  Over the age of 18.