Apologies in advance as this may seem a long post. Below are my three recent sets of test results - following the March 2017 results my GP placed me on a low dose (25mg) of Levothyroxine. Following the June results, I saw my GP as I was experiencing dizzy spells and tiredness, which were new symptoms. He said my test results were normal and that I probably did not need to be on any medication and that the Levothyroxine could be the cause of the dizziness, but to keep on those until the re-tests in September.
Following the September results (again "normal") I have decided to come off the medication. Does this seem a reasonable approach?
Many thanks in advance for any advice.
TEST RESULTS:
Specimen Type: Serum
Specimen Reference#: 1
Received: 16 Mar 2017
Pathology Investigations
Thyroid function test
Serum TSH level 7.77 mU/L [0.35 - 5.5]
Above high reference limit
Serum free T4 level 13.7 pmol/L [10.0 - 19.8]
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Specimen Type: Serum
Specimen Reference#: 1
Received: 21 Jun 2017
Pathology Investigations
THYROID PEROXIDASE ANTIBODY
Serum thyroid peroxidase antibody concentration 81 iu/ml [0.0 - 60.0]
Above high reference limit
Thyroid function test
Serum TSH level 4.88 mU/L [0.35 - 5.5]
Serum free T4 level 14.8 pmol/L [10.0 - 19.8]
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Specimen Type: Multiple
Specimen Reference#: 1
Received: 27 Sep 2017
Pathology Investigations
ESR
Erythrocyte sedimentation rate 6 mm [2.0 - 10.0]
FREE T3
Serum free triiodothyronine level 4.7 pmol/L [3.5 - 6.5]
Full blood count
Total white blood count 8.0 10*9/L [3.9 - 10.2]
Red blood cell count 4.90 10*12/L [4.3 - 5.75]
Haemoglobin concentration 142 g/L [135.0 - 172.0]
Haematocrit 0.425 L/L [0.395 - 0.505]
Mean cell volume 87.4 fL [80.0 - 99.0]
Mean cell haemoglobin level 29.3 pg [27.0 - 33.5]
Red blood cell distribution width 13.1 % [11.0 - 16.0]
Platelet count - observation 314 10*9/L [150.0 - 370.0]
Plateletcrit 0.260
Mean platelet volume 8.3 fL
Neutrophil count 4.18 10*9/L [1.5 - 7.7]
Lymphocyte count 2.83 10*9/L [1.1 - 4.5]
Monocyte count - observation 0.62 10*9/L [0.1 - 0.9]
Eosinophil count - observation 0.16 10*9/L [0.02 - 0.5]
Basophil count 0.07 10*9/L [0.0 - 0.2]
Liver function tests
Serum albumin level 36 g/L [35.0 - 50.0]
Serum total bilirubin level 6 umol/L [0.0 - 20.0]
Serum alkaline phosphatase level 94 U/L [30.0 - 130.0]
Serum alanine aminotransferase level 20 U/L [7.0 - 40.0]
Urea and electrolytes
Serum sodium level 140 mmol/L [133.0 - 146.0]
Serum potassium level 4.0 mmol/L [3.5 - 5.3]
Serum creatinine level 74 umol/L [62.0 - 115.0]
eGFR using creatinine (CKD-EPI) per 1.73 square metres ≥ 90 mL/min/1.73m*2
Please note change in eGFR equation to CKD-EPI.
eGFR calculation assumes Caucasian origin.
VITAMIN B12
Serum vitamin B12 level 400.0 ng/L [211.0 - 911.0]
FOLATE (SERUM)
Serum folate level 5.88 ug/L [> 5.38]
Serum Folate Reference Range = Greater than 5.38 ug/L If the patient
cannot be fasted be aware that a folate rich meal, eaten less than 3
hours prior to venesection, may increase serum folate concentrations.
Thyroid function test
Serum TSH level 3.89 mU/L [0.35 - 5.5]
Serum free T4 level 15.0 pmol/L [10.0 - 19.8]