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On call. I have always had my blood tests taken the first thing in the morning, before I've had breakfast. We've just moved to a new home and I'll have a long commute to the hospital, so I'd like to eat before I start out. My cholesterol has always been great, so my doctor said a light breakfast won't interfere with cholesterol tests. But he didn't know if eating would change my PSA result. What do you think?

On call. I have always had my blood tests taken the first thing in the morning, before I've had breakfast. We've just moved to a new home and I'll have a long commute to the hospital, so I'd like to eat before I start out. My cholesterol has always been great, so my doctor said a light breakfast won't interfere with cholesterol tests. But he didn't know if eating would change my PSA result. What do you think? Harv Mens Health Watch. 2005 Dec; 10(5):8.

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