code: function getVitalUnits(vitalType) {
      /*for height and weight, you need some kind of realistic numberical evaluator to
       determine the weight and height units */
      if (vitalType.toLowerCase() === 'blood pressure') {
          return 'mm[Hg]';
      } else if (vitalType.toLowerCase().indexOf('glucose') >= 0) {
          return 'mg/dL';
      } else if (vitalType.toLowerCase().indexOf('height') >= 0) {
          return 'cm';
      } else if (vitalType.toLowerCase().indexOf('weight') >= 0) {
          return 'kg';
      }
  
      return null;
  }
docs: this needs to be a more complex function that can correctly analyze what type of units it is. Also should be given the value as well later.