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No thyroid and low TSH levels

Since having Thyroid cancer last Feb. and my thyroid removed we can not get my TSH levels right. We keep lowering the dosage due to low levels from 125 mcg to mcg of Levothroid. I am worried about my weight plus other difficulties with taking such a low dosage. Any suggestions on why such low levels with no thyroid?
Thank you!

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Notes

03/31/2015 -TSH (CH) Received -QHN-Community Hospital low but improved Greenlee,M Carol  4/6/2015 7:12:40 AM >
03/17/2015 -TSH (CH) Received -QHN-Community Hospital Low Greenlee,M Carol  3/18/2015 8:51:57 PM > TSH too low again, is she still taking the green 88 mcg LT4 ? any new meds or other changes ?
Potratz,Rebecca  3/19/2015 11:07:55 AM > seep hone message
01/07/2015 MISCELLANEOUS TEST #1 Received -QHN-Community Hospital no heterophile antibody Greenlee,M Carol  1/9/2015 5:57:00 PM >
01/06/2015 -TSH (CH) Received -QHN-Community Hospital Low Potratz, Rebecca 01/06/2015 04:16:58 PM MST > TSH with HAMA/ heterophile AB
12/22/2014 -Free T4  (CH) Received -QHN-Community Hospital Normal Greenlee,M Carol  12/23/2014 6:03:37 AM >
12/22/2014 -THYROGLOB TUMOR MARKER M#83069 (CH) Received -QHN-Community Hospital Low Greenlee,M Carol  1/2/2015 8:51:31 PM >
12/22/2014 -TSH (CH) Received -QHN-Community Hospital Low Greenlee,M Carol  12/23/2014 6:00:04 AM > see if Dr Havlik can have HAMA /heterophile antibodies run just be sure not missing those as cause of low TSH
Potratz,Rebecca  1/6/2015 4:19:25 PM > added
10/07/2014 -Free T4  (CH) Received -QHN-Community Hospital Normal Greenlee,M Carol  10/13/2014 8:49:37 PM > her fT4 is lower but TSH is still suppressed, see phone
10/07/2014 -THYROGLOB TUMOR MARKER M#83069 (CH) Received -QHN-Community Hospital Low Greenlee,M Carol  10/10/2014 5:56:13 AM >
10/07/2014 -TSH (CH) Received -QHN-Community Hospital Low Greenlee,M Carol  10/13/2014 8:53:14 PM >
08/07/2014 -Free T4  (CH) Received -QHN-Community Hospital Normal Greenlee,M Carol  8/10/2014 5:36:36 PM >
08/07/2014 -TSH (CH) Received -QHN-Community Hospital Low Greenlee,M Carol  8/10/2014 5:33:56 PM > see Phone encounter
06/10/2014 -TSH (CH) Received -QHN-Community Hospital Low Greenlee,M Carol  6/11/2014 9:15:25 PM >
04/10/2014 -THYROGLOB TUMOR MARKER M#83069 (CH) Received -QHN-Community Hospital Low Greenlee,M Carol  4/14/2014 7:22:02 PM > plan to repeat in 6 months and then a year and then annually if remains low
04/10/2014 -TSH (CH) Received -QHN-Community Hospital Low Greenlee,M Carol  4/10/2014 8:04:32 PM >

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231441 tn?1333892766
Hello,

is your doctor just testing TSH, or is he also testing Ft3 and Ft4 (actual thyroid hormone levels)?  

Please let us know and the test reference ranges from the past testing.

How are you feeling?
Helpful - 0
649848 tn?1534633700
COMMUNITY LEADER
I'm sorry, I'm not seeing any actual results of anything - just notes.  

It would be easier for us if you post the actual test results and reference ranges.  

It's typical for TSH to be kept suppressed after thyroid cancer.  Aside from that, levels of Free T3 and Free T4 are much more important than TSH in how you feel.  I see mention of FT4, but nothing about FT3... if your doctor isn't testing that, you probably need a different doctor.
Helpful - 0
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