David, I'm not sure, but my impression always had been that cholesterol testing was a bit like HbA1c: it moves around slowly enough that the gain from testing weekly doesn't justify the pain, effort and cost. I bow to you, naturally, if I am mistaken... Thanks for the review. Peter David's Response: That's an interesting point, Peter, and I haven't seen it directly addressed anywhere. However, the expert panel of the National Cholesterol Education Program does say, "Adjustment of therapy may be needed after 12 weeks." This implies to me that except for the very small minority of us who have satisfactory cholesterol levels we need to test at least every 3 months. But as you say, certainly not weekly.

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