Misleading Free Thyroxine (FT4): A Case Report
Malaysian Journal of Medicine and Health Sciences
;
: 320-322, 2020.
Article
in English
| WPRIM
| ID: wpr-829942
ABSTRACT
@#Interpretation of thyroid function test (TFT) is often straightforward but in certain scenarios, discordance between the clinical impression and the laboratory results exists. A 50-year-old woman with a ten years history of hypothyroidism on levothyroxine presented with a recent notable change in TFT [elevated free thyroxine (FT4) and thyroid-stimulating hormone (TSH)], in an otherwise clinically euthyroid and previously stable TFT, leading to levothyroxine being withheld. This case report highlights the possibility of assay interference as a cause of discordant TFT. It also draws the importance of close collaboration between clinicians and the laboratory to avoid unnecessary investigations and inappropriate management of such a case.
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Index:
WPRIM (Western Pacific)
Language:
English
Journal:
Malaysian Journal of Medicine and Health Sciences
Year:
2020
Type:
Article
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