Is TSH useful for Blutzucker?

The question of whether TSH is useful for blood sugar (Blutzucker) cannot be directly answered from the provided context, as it contains no specific information linking TSH and glucose. In general medical knowledge, TSH (thyroid-stimulating hormone) is a marker of thyroid function, not blood sugar. However, thyroid status does affect glucose metabolism: hypothyroidism (elevated TSH) is associated with insulin resistance and higher fasting glucose, while hyperthyroidism (low TSH) can increase glucose utilization and cause hypoglycemia. In clinical practice, TSH is not used as a primary blood sugar marker; standard measures include fasting glucose, HbA1c, and oral glucose tolerance tests. TSH testing may be useful when unexplained diabetes or metabolic disturbances are present, to rule out underlying thyroid disease. For routine blood sugar monitoring, TSH is not helpful. The evidence is rated as unclear because the context does not provide direct studies or guidelines on this specific question. Caveat: TSH values alone do not reflect current blood sugar; combined assessment is only warranted if thyroid dysfunction is suspected.