Question: I am a 57 year old woman of normal weight and no health issues besides for benign multi nodular thyroid. I take NO MEDICATIONS. on my blood work up dated 7/14/2015, my LDH was elevated at 251 (lab normal range 135-214). All my other panel level were normal. This was the first time I had an elevation in my liver panels. At my check up on 1/13/2106 for the first time my AST was elevated at 38 (lab normal range 10-35), My ALT was elevated at 40 (normal range lab 6-29),my iron was elevated at 171 (lab normal range is 45-160) and my LDH was slightly elevated again at 254 (lab normal range 120-250). I had an ultra sound of my abdomen (including kidney, pancreas, liver and gall bladder and it was all clear).
I was recently retested on 1/20/2016, 7 days after my last test and AST is now within normal range at 24 ( lab normal range is 0-32), and my ALT is within normal range at 29 (lab normal range is 0-33). However my iron elevation got worse at 182 (lab normal range is 30-170) and my LDH got higher at 279 (lab normal range is 135-214). Can results change that significantly so quickly ? I am terrified I have cancer. Please help

Have you ever seen results change so abruptly from one week to the next?