Tests T - Z

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T - T

Thyroid peroxidise abs

Autoimmune thyroiditis (Hashimotos thyroiditis, 95%)
Graves disease (20%)
Primary myxoedema (90%)

Thyroglobulin abs 

Tumour marker

TSH receptor abs

Hyperthyroidism in Grave’s disease

Tissue Transglutaminase abs (anti-tTG) 
 
Coeliac disease

(IgA deficiency samples will be tested for IgG anti-giadin DP abs)

Tryptase [See Adverse Anaesthetic reactions]

T-SPOT TB

Both latent TB infection and TB disease

U - Z

Urinary free light chains

Myeloma

See serum immunoglobulin free light chains

Viscosity

Monitoring Waldenstroms’ macro-globulinaemia
Retinal or cerebrovascular occlusion

Volt gated Ca++ channel abs 

Lambert Eaton myasthenic syndrome (LEMS) associated with with small cell lung carcinoma.

Volt gated K+ channel abs 

Antibodies to voltage gated potassium channel are found in ~40% of patients with Acquired neuromyotonia (~40)